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Vitamin B1, B6 & B12 is indicated for the treatment of vitamin B1, B6 & B12 deficiency syndrome. It is also indicated for the supportive treatment of neuritis & non-inflammatory diseases of the nerves, e.g.- Diabetic neuropathy, Peripheral neuralgin, Lumbago, Myalgia, Optic neuritis, Sciatica, Facial neuralgia, Intercostal neuralgia, Spinal pain.

Specific combined vitamin preparations

Vitamin B1 converts carbohydrates, fatty acids and amino acids into energy, promotes healthy nerves, improves mood, strengthens the heart. Vitamin B6 forms RBCs, helps cells to make proteins, manufactures neurotransmitters e.g. serotonin and releases stored forms of energy, helps to prevent CVS diseases and stroke, helps to lift depression and eases insomnia. Vitamin B12 is essential for cell replication and important for RBC production, prevents anemia, helps to prevent depression, reduces nerve pain, numbness, tingling and lowers the risk of heart diseases.

The vitamin ingredients are absorbed well in per oral reception. It is widely distributed to most tissues and appears in breast milk. Within the cell, thiamine is mostly present as diphosphate. Thiamine is not stored to any appreciable extent in the body and amounts in excess of the body’s requirements are excreted in the urine as unchanged thiamine or as metabolites. Pyridoxine, pyridoxal and pyridoxamine are readily absorbed from the GIT following oral administration and are converted to the active forms of pyridoxal phosphate an pyridoxamine phosphate. They are stored mainly in liver where there is oxidation to 4-pyridoxic acid and other inactive metabolites, which are excreted in urine. As the dose increases, proportionally greater amounts are excreted unchanged in the urine.

Tablet: 1-3 Tablets per day or as advised by the physician.

Injection:

• In severe (acute) cases: 1 injection daily until the acute symptoms subside or taken as advised by the physician.
• In mild cases: 1 injection 2-3 times per week. Ampoules are preferably injected intramuscularly.

Use in children: There is no information on the use of this drug in children.

Generally well tolerated but allergic reactions may be observed in few cases.

Vitamin B1, Vitamin B6 and Vitamin B12 is contraindicated in patients on levodopa therapy, and in patients with hypersensitivity to any of the ingredients of the preparation.

Cyanocobalamin should not be given in patients with subacute degeneration of the spinal cord. Cyanocobalamin is not suitable form of vitamin B12 for the treatment of optic neuropathies associated with raised plasma concentrations of cyanocobalamin.

No drug interaction has been reported yet.

Oral tablet form is recommended but due to the presence of benzyl alcohol, injection is not recommended during pregnancy & lactation.

No overdosage symptoms are to be expected in the recommended dosage. If there is known overdose then treatment is symptomatic & supportive.

Keep out of reach of children. Store in a cool (below 25°C temperature) and dry place, protected from light.

Daclatasvir is indicated in combination with Sofosbuvir for the treatment of chronic hepatitis C virus (HCV) infection in adults.

Hepatic viral infections (Hepatitis C)

Daclatasvir is a direct acting antiviral agent (DAA) against the Hepatitis C Virus (HCV). Daclatasvir is an inhibitor of NS5A, a nonstructural protein encoded by HCV. Daclatasvir binds to the N-terminus of NS5A and inhibits both viral RNA replication and virion assembly. Characterization of Daclatasvir-resistant viruses, biochemical studies, and computer modeling data indicate that Daclatasvir interacts with the N-terminus within Domain 1 of the protein, which may cause structural distortions that interfere with NS5A functions.

Recommended Dosage: The recommended dose of Daclatasvir is 60 mg once daily, to be taken orally with or without meals.

Daclatasvir must be administered in combination with other medicinal products. The Summary of Product Characteristics for the other medicinal products in the regimen should also be consulted before initiation of therapy with Daclatasvir. Recommended regimens and treatment duration are provided in table below:

For the regimen of Daclatasvir+Sofosbuvir, data for 12-week treatment duration are available only for treatment-naïve patients with genotype 1 infection. For Daclatasvir+Sofosbuvir with or without Ribavirin, data are available for patients with advanced liver disease (≥F3) without cirrhosis. The recommended use of Daclatasvir+Sofosbuvir in genotype 4 is based on extrapolation from genotype 1. For the regimen of Daclatasvir+Peginterferon alfa + Ribavirin, data are available for treatment-naïve patients.

• The dose of Ribavirin, when combined with Daclatasvir, is weight-based (1,000 or 1,200 mg in patients <75 kg or ≥75 kg, respectively).
• Dose modification, interruption and discontinuation: Dose modification of Daclatasvir to manage adverse reactions is not recommended. If treatment interruption of components in the regimen is necessary because of adverse reactions, Daclatasvir must not be given as monotherapy.
• There are no virologic treatment stopping rules that apply to the combination of Daclatasvir with Sofosbuvir.
• Treatment discontinuation in patients with inadequate on-treatment virologic response during treatment with Daclatasvir, Peginterferon alfa and Ribavirin.

Dose recommendation for concomitant medicines:

• Strong inhibitors of cytochrome P450 enzyme 3A4 (CYP3A4): The dose of Daclatasvir should be reduced to 30 mg once daily when coadministered with strong inhibitors of CYP3A4.
• Moderate inducers of CYP3A4: The dose of Daclatasvir should be increased to 90 mg once daily when coadministered with moderate inducers of CYP3A4.
• Missed doses: Patients should be instructed that, if they miss a dose of Daclatasvir, the dose should be taken as soon as possible if remembered within 20 hours of the scheduled dose time. However, if the missed dose is remembered more than 20 hours after the scheduled dose, the dose should be skipped and the next dose taken at the appropriate time.

The following serious adverse reactions are described below and elsewhere in the labeling: Serious Symptomatic Bradycardia When Coadministered with Sofosbuvir and Amiodarone. One can get any of the following symptoms: Fainting or near-fainting, dizziness or lightheadedness, not feeling well, weakness, tiredness, shortness of breath, chest pain, confusion, memory problems.

Daclatasvir is contraindicated in combination with drugs that strongly induce CYP3A and, thus, may lead to lower exposure and loss of efficacy of Daclatasvir. Contraindicated drugs include, but are not limited to, Anticonvulsants (phenytoin, carbamazepine), Antimycobacterial agents (rifampin), Herbal Products st.Jhon’s wort (Hypericum perforatum).

Risk of adverse reactions or loss of virologic response due to drug interactions. The concomitant use of Daclatasvir and other drugs may result in known or potentially significant drug interactions, some of which may lead to:

• loss of therapeutic effect of Daclatasvir and possible development of resistance
• dosage adjustments of concomitant medications or Daclatasvir
• possible clinically significant adverse reactions from greater exposures of concomitant drugs or Daclatasvir

Serious Symptomatic Bradycardia When Coadministered with Sofosbuvir and Amiodarone and patients counseling: Postmarketing cases of symptomatic bradycardia and cases requiring pacemaker intervention have been reported when Amiodarone is coadministered with Sofosbuvir in combination with another HCV direct-acting antiviral, including Daclatasvir. Patients who are taking Sofosbuvir in combination with Daclatasvir who need to start Amiodarone therapy due to no other alternative treatment options should undergo cardiac monitoring.

Potential for Other Drugs to Affect Daclatasvir: Daclatasvir is a substrate of CYP3A. Therefore, moderate or strong inducers of CYP3A may decrease the plasma levels and therapeutic effect of Daclatasvir. Strong inhibitors of CYP3A (eg, clarithromycin, itraconazole, ketoconazole, ritonavir) may increase the plasma levels of Daclatasvir.

Potential for Daclatasvir to Affect Other Drugs: Daclatasvir is an inhibitor of P-glycoprotein transporter (P-gp), organic anion transporting polypeptide (OATP) 1B1 and 1B3, and breast cancer resistance protein (BCRP). Administration of Daclatasvir may increase systemic exposure to medicinal products that are substrates of P-gp, OATP 1B1 or 1B3, or BCRP, which could increase or prolong their therapeutic effect or adverse reaction.

No data with Daclatasvir in pregnant women are available to inform a drug-associated risk. No information regarding the presence of Daclatasvir in human milk, the effects on the breastfed infant, or the effects on milk production is available.

Elderly: No dose adjustment of Daclatasvir is required for patients aged ≥65 years.

Renal impairment: No dose adjustment of Daclatasvir is required for patients with any degree of renal impairment.

Hepatic impairment: No dose adjustment of Daclatasvir is required for patients with mild (Child-Pugh A, score 5-6), moderate (Child-Pugh B, score 7-9) or severe (Child-Pugh C, score ≥10) hepatic impairment.

Paediatric population: The safety and efficacy of Daclatasvir in children and adolescents aged below 18 years have not yet been established. No data are available.

There is no known antidote for overdose of Daclatasvir. Treatment of overdose with Daclatasvir should consist of general supportive measures, including monitoring of vital signs and observation of the patient’s clinical status. Because Daclatasvir is highly protein bound (>99%), dialysis is unlikely to significantly reduce plasma concentrations of the drug.

Store at room temperature below 30°C, protect from light. keep out of the reach of children.

Entecavir is indicated for the treatment of chronic hepatitis B virus infection in adults and pediatric patients 2 years of age and older with evidence of active viral replication and either evidence of persistent elevation in serum aminotransferases (ALT or AST) or histologically active disease.

Hepatic viral infections (Hepatitis B)

By competing with the natural substrate deoxyguanosine triphosphate, entecavir functionally inhibits all three activities of the HBV polymerase (reverse transcriptase, rt):

• Base priming,
• Reverse transcription of the negative strand from the pregenomic messenger RNA, and
• Synthesis of the positive strand of HBV DNA. Upon activation by kinases, the drug can be incorporated into the DNA which has the ultimate effect of inhibiting the HBV polymerase activity.

The recommended dose of Entecavir for chronic hepatitis B virus infection in nucleoside-treatment-naive adults and adolescents 16 years of age is 0.5 mg once daily. For Lamivudine-refractory or known Lamivudine or Telbivudine resistance mutations, the recommended dose of Entecavir is 1 mg once daily. For patients with decompensated liver disease (adult) the recommended dose of Entecavir is 1 mg once daily. Entecavir should be administered on an empty stomach (at least 2 hours after a meal or 2 hours before the next meal).

Missed Dose: If it is almost time for next dose, skip the missed dose and take the next dose at the proper time. Nobody should take a double dose to make up for the missed dose.

The most common adverse events are headache, fatigue, dizziness and nausea.

Entecavir is contraindicated in patients with previously demonstrated hypersensitivity to Entecavir or any component of the product.

Lactic acidosis: Lactic acidosis and severe hepatomegaly with steatosis, including fatal cases have been reported with the use of nucleoside analogues alone or in combination with antiretrovirals.

Exacerbations of hepatitis after discontinuation of treatment: Severe acute exacerbations of hepatitis B have been reported in patients who have discontinued anti-hepatitis B therapy, including Entecavir.

Co-administration of Entecavir with Lamivudine or Adefovir dipivoxil did not result in significant drug interactions. The effects of co-administration of Entecavir with other drugs that are eliminated through renal or are known to affect renal function have not been evaluated and patients should be monitored closely for adverse events when coadministered with such drugs.

There are no data on the effect of Entecavir on the transmission of HBV from mother to infant. Therefore, appropriate care should be taken. It is not known whether it is excreted in human milk. Mothers should be instructed not to breastfeed if they are taking Entecavir.

Pediatric: Safety and effectiveness of Entecavir in pediatric patients below the age of 2 years have not been established.

Geriatric: Clinical studies of Entecavir did not include sufficient numbers of subjects aged 65 years and over to determine whether they respond differently from younger subjects. But care should be taken in dose selection, and it may be useful to monitor renal function.

Dose adjustment in renal impairment: Dose adjustment is recommended for patients with CrCl <50 ml/min including patients on hemodialysis or continuous ambulatory peritoneal dialysis (CAPD) as shown below:

• CrCl ≥50 ml/min: 0.5 mg every 24 hours
• CrCl 30 to <50 ml/min: 0.5 mg every 48 hours
• CrCl 10 to <30 ml/min: 0.5 mg every 72 hours
• CrCl <10 ml/min or  Hemodialysis or CAPD: 0.5 mg every 7 days

There is no experience of Entecavir overdosage reported in patients. Healthy subjects who received up to 20 mg daily for up to 14 days and single doses up to 40 mg had no unexpected adverse events. If overdosage occurs, the patient must be monitored for evidence of toxicity and standard supportive treatment as necessary.

Keep in a dry place and store below 30°C. Protect from light and keep out of the reach of children.

This is indicated for the treatment of:

• Chronic hepatitis B virus infection in adults
• HIV infected adults in combination with other anti retroviral agents

Drugs for HIV / Anti-retroviral drugs, Hepatic viral infections (Hepatitis B)

Tenofovir Disoproxil Fumarate, an acyclic nucleotide analogue of adenosine monophosphate, is a pro-drug of Tenofovir. It shows activity against hepatitis B virus polymerase and HIV reverse transcriptase after phosphorylation to the active diphosphate form. Tenofovir diphosphate inhibits viral polymerase (reverse transcriptase) by directly competing with the natural substrate deoxyribonucleotide and by causing DNA chain termination after its incorporation into viral DNA.

The recommended dose of Tenofovir in chronic hepatitis B virus infection in adults 18 years of age and older with adequate renal function is 300 mg once daily with or without food.

The most common side effects are nausea, vomiting, diarrhea and flatulence.

Tenofovir is contraindicated in patients with known hypersensitivity to Tenofovir or any component of the product.

Co-administration with other drugs: Tenofovir should not be administered concurrently with Emtricitabine & Tenofovir combination or Adefovir Dipivoxil.

Lactic Acidosis & Severe Hepatomegaly with Steatosis: Though the risk of occurrence of lactic acidosis is low for Tenofovir, treatment should be suspended in any patient who develops lactic acidosis or hepatotoxicity.

Exacerbation of hepatitis after discontinuation of treatment: Discontinuation of Tenofovir
therapy may be associated with severe acute exacerbation of hepatitis.

Co-administration of Tenofovir with anti-retroviral, entecavir, lamivudine, methadone, oral contraceptives, ribavirin and tacrolimus did not result in significant drug interactions. The effects of co-administration of Tenofovir with other drugs that are renally eliminated or are known to affect renal function have not been evaluated.

Pregnancy: Pregnancy category B. It should be used during pregnancy only if clearly needed.

Lactation: It is not known whether it is excreted in human milk. Mothers should be instructed not to breast feed if they are taking Tenofovir.

Pediatric use: Safety and effectiveness of Tenofovir in pediatric patients below the age of 18 years have not been established.

Geriatrics use: Clinical studies of Tenofovir did not include sufficient numbers of subjects aged 65 years and over to determine whether they respond differently from younger subjects. But care should be taken in dose selection, and it may be useful to monitor renal function.

Renal Impairment: Haemodialysis patients: 300 mg once every 7 days or after a cumulative total of 12 hr of dialysis.

• CrCl (10-29 mL/min): 300 mg 72-96 hrly.
• CrCl (30-49 mL/min): 300 mg 48 hrly.

Hepatic impairment: No dose adjustment is required in patients with hepatic impairment.

There is no experience of Tenofovir overdose reported in patients

Store in a cool and dry place, protected from light and moisture. Keep the medicine out of the reach of children.

Aciclovir is indicated for-

• The treatment of viral infections due to Herpes simplex virus (type I & II) and Varicella zoster virus (herpes zoster & chicken pox).
• The treatment of Herpes simplex virus infections of the skin and mucous membranes including initial and recurrent genital herpes and herpes labialis.
• The prophylaxis of Herpes simplex infections in immunocompromised patients

Herpes simplex & Varicella-zoster virus infections

Aciclovir is a synthetic purine derivative. Aciclovir exerts its antiviral effect on Herpes simplex virus (HSV) and Varicella-zoster virus by interfering with DNA synthesis and inhibiting viral replication. In cells infected with herpes virus, the antiviral activity of Aciclovir appears to depend principally on the intracellular conversion of the drug to Aciclovir Triphosphate. Aciclovir is converted to Aciclovir Monophosphate principally via virus coded thymidine kinase; the monophosphate is phosphorylated to the diphosphate via cellular guanylate kinase and then via another cellular enzyme to the triphosphate, which is the pharmacologically active form of the drug. 15-30% of an oral dose of the drug is absorbed from Gl tract. Peak plasma concentrations usually occur within 1.5-2 hours after oral administration. It is widely distributed into body tissues and fluids including the brain, saliva, lungs, liver, muscle, spleen, uterus, vaginal mucosa and secretions, CSF, and herpetic vesicular fluid. Aciclovir is excreted through the kidney by the glomerular filtration & tubular secretion.

Treatment of initial herpes simplex: 200 mg 5 times daily usually for 5 days.

For immunocompromised patients:

• Adult: 400 mg 5 times daily for 5 days (longer if new lesions appear during treatment or if healing is incomplete; increase dose to 800 mg 5 times daily for genital herpes in immunocompromised) or as directed by the registered physician.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Prevention of recurrence of herpes simplex:

• Adult: 200 mg 4 times daily or 400 mg twice daily possibly reduced to 200 mg 2 or 3 times daily and interrupted every 6-12 months.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Prophylactic treatment of herpes simplex in the immunocompromised patients:

• Adult: 200 to 400 mg 4 times daily.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Treatment of vericella (chicken pox):

• Adult and children over 40 kg: 800 mg 4 times daily for 5 days.
• Children below 40 kg: 20 mg/kg (maximum 800 mg) per dose orally 4 times daily (80 mg/kg/day) for 5 days.
• Children 1 month-2 years: 200 mg 4 times daily for 5 days.
• Children 2-5 years:400 mg 4 times daily for 5 days.
• Children 6-12 years:800 mg 4 times daily for 5 days.

Treatment of herpes zoster (Shingles): 800 mg 5 times daily for 7 days.

Treatment of initial rectal (Proctitis) herpes infections: An oral Aciclovir dosage of 400 mg 5 times daily for 10 days or until clinical resolution occurs has been recommended.

Renal Impairment: For patients with severe renal impairment, a reduction of the doses is recommended.

Rash, gastrointestinal disturbance, rise in bilirubin and liver-related enzymes, increase in blood urea and creatinine, decrease in hematological indices, headache, neurological reaction, fatigue.

Aciclovir is contraindicated in patients known to be hypersensitive to Aciclovir.

Aciclovir should be administered with caution in patients with renal impairment and doses should be adjusted according to creatinine clearance. Monitor neutrophil count at least twice weekly in neonates.

Probenecid reduces Aciclovir excretion and so increases plasma concentration and risk of toxicity.

Pregnancy category B. Aciclovir should not be used during pregnancy unless the potential benefit justifies the potential risk to the fetus. Caution should be exercised when it is administered to a nursing mother.

Should be stored below 25°C. It should be protected from light and moisture.Keep out of the reach of children.

Herpes simplex & Varicella-zoster virus infections

Acyclovir exerts its antiviral e­ects on Herpes simplex virus and Varicella zoster virus by interfering with DNA synthesis and inhibiting viral replication. In cells infected with Herpes virus, the antiviral activity of Acyclovir appears to depend principally on the intracellular conversion of the drug to Acyclovir Triphosphate. Acyclovir is converted to Acyclovir Monophosphate principally via virus coded thymidine kinase, the monophosphate is phosphorylated to diphosphate via cellular guanylate kinase and then via other cellular enzymes to the Triphosphate, which is the pharmacologically active form of the drug.

• Herpes simplex infection: For normal or immunocompromised immune status: 5 mg/kg every 8 hours
• Very severe Herpes zoster infection (shingles): For normal immune status: 5 mg/kg every 8 hours
• Varicella zoster infection: For immunocompromised immune status: 10 mg/kg every 8 hours
• Herpes simplex encephalitis: For normal or immunocompromised immune status: 10 mg/kg every 8 hours

Each dose should be administered by slow intravenous infusion over a one-hour period.

It is recommended that Acyclovir IV Injection for Intravenous Infusion should be administered for five to seven days in the treatment of most infections and for at least ten days in the treatment of Herpes simplex encephalitis.

Acyclovir IV Injection after reconstitution may be injected directly into a vein over one hour by a controlled-rate infusion pump or be further diluted for administration by infusion. For intravenous infusion each vial of Acyclovir IV Injection should be reconstituted and then, wholly or in part according to the dosage required, added to and mixed with at least 50 mL-100 ml infusion solution. A maximum of 250 mg & 500 mg of Acyclovir may be added to 50 ml & 100 ml infusion solution respectively. After addition of Acyclovir IV Injection to an infusion solution the mixture should be shaken to ensure thorough mixing. Acyclovir IV Injection when diluted in accordance with the above schedule will give an Acyclovir concentration not greater than 0.5% w/v.

Acyclovir IV Injection is known to be compatible with the following infusion fluids and stable for up to 12 hours at room temperature (below 25°C) when diluted to a concentration not greater than 0.5% w/v Acyclovir.

• Sodium Chloride Intravenous Infusion BP (0.45% and 0.9% w/v)
• Sodium Chloride (0.18% w/v) and Glucose (4% w/v) Intravenous Infusion
• Sodium Chloride (0.45% w/v) and Glucose (2.5% w/v) Intravenous Infusion
• Compound Sodium Lactate Intravenous Infusion BP (Hartmann's Solution)

Acyclovir IV Injection for Intravenous Infusion contains no preservative. Reconstitution and dilution should therefore be carried out immediately before use and any unused solution should be discarded. The solution should not be refrigerated.

Some infrequent adverse reactions are lethargy, obtundation, tremors, confusion, hallucinations, agitation, somnolence, psychosis, convulsions and coma, phlebitis, nausea, vomiting, reversible increases in liver-related enzymes, pruritus, urticaria, rashes, increases in blood urea and creatinine. Local inflammatory reactions may occur if Acyclovir IV Infusion is inadvertently infused into extracellular tissues.

Acyclovir IV Injection is contraindicated in patients known to be hypersensitive to Acyclovir or Valacyclovir.

Acyclovir IV injection is intended for intravenous infusion only and should not be used through any other route. Reconstituted Acyclovir IV Infusion has a pH of approximately 11.0 and should not be administered by mouth. Acyclovir IV injection as infusion must be given over a period of at least one hour in order to avoid renal tubular damage. It should not be administered as a bolus injection. Acyclovir IV infusion must be accompanied by adequate hydration. Since maximum urine concentration occurs within the first few hours following infusion, particular attention should be given to establish sufficient urine ‑ow during that period. Concomitant use of other nephrotoxic drugs, pre-existing renal disease and dehydration increase the risk of further renal impairment by Acyclovir. As Acyclovir has been associated with reversible encephalopathic changes, it should be used with caution in patients with neurological abnormalities, significant hypoxia or serious renal, hepatic or electrolyte abnormalities.

Co-administration of probenecid with Acyclovir has been shown to increase the mean Acyclovir half-life and the area under the concentration time curve. Urinary excretion and renal clearance correspondingly reduced. In patients over 60 years of age concurrent use of diuretics increases plasma levels of Acyclovir very significantly.

Pregnancy category B. There have been no adequate and well controlled studies concerning the safety of Acyclovir in pregnant women. It should not be used during pregnancy unless the benefits to the patient clearly outweigh the potential risks to the fetus. Acyclovir should only be administered to nursing mothers if the benefits to the mother outweigh the potential risks to the baby. There is no experience of the effect of Acyclovir on human fertility.

Pediatric use: The dose of Acyclovir IV injection in children aged 1-12 years should be calculated on the basis of body surface area. Children in this age group with Herpes simplex infections (except Herpes simplex encephalitis) or Varicella zoster infections should be given Acyclovir IV Infusion in doses of 250 mg/m² (equivalent to 5 mg/kg in adults). Immunocompromised children in this age group with Varicella zoster virus infection or with Herpes simplex encephalitis should be given Acyclovir IV Infusion in doses of 500 mg/m² (equivalent to 10 mg/kg in adults). Children with impaired renal function require an appropriately modified dose, according to the degree of impairment.
 
Geriatric use: No data are available on this age group. However, as creatinine clearance is often low in the elderly, special attention should be given to dosage reduction.

In patients with renal impairment: Acyclovir should be administered with caution since the drug is excreted through the kidneys. The following modifications in dosage are suggested:

• CrCl: 25-50 ml/min: 5 or 10 mg/kg every 12 hours
• CrCl: 10-25 ml/min: 5 or 10 mg/kg every 24 hours
• CrCl: 0-10 ml/min: 2.5 or 5 mg/kg every 24 hours and after dialysis.

Overdosage of intravenous Acyclovir has resulted in elevations of serum creatinine, blood urea nitrogen and subsequent renal failure. Neurological effects including confusion, hallucinations, agitation, seizures and coma have been described in association with over dosage. Adequate hydration is essential to reduce the possibility of crystal formation in the urine. Hemodialysis significantly enhances the removal of Acyclovir from the blood and may, therefore, be considered an option in the management of overdose of Acyclovir.

It is recommended that Acyclovir IV Injection for Intravenous Infusion should be administered for five to seven days in the treatment of most infections and for at least ten days in the treatment of Herpes simplex encephalitis.

Each 250 mg vial of Acyclovir IV Injection should be reconstituted by the addition of 10 ml of either Water for Injection or Sodium Chloride Intravenous Infusion (0.9% w/v). This provides a solution containing 25 mg Acyclovir per ml.

Each 500 mg vial of Acyclovir IV Injection should be reconstituted by the addition of 10 ml of either Water for Injection or Sodium Chloride Intravenous Infusion (0.9% w/v). This provides a solution containing 50 mg Acyclovir per ml.

Store at 15°C to 25°C. Protected from light and moisture. Keep the medicine out of the reach of children.

Herpes simplex & Varicella-zoster virus infections

Acyclovir exerts its antiviral e­ects on Herpes simplex virus and Varicella zoster virus by interfering with DNA synthesis and inhibiting viral replication. In cells infected with Herpes virus, the antiviral activity of Acyclovir appears to depend principally on the intracellular conversion of the drug to Acyclovir Triphosphate. Acyclovir is converted to Acyclovir Monophosphate principally via virus coded thymidine kinase, the monophosphate is phosphorylated to diphosphate via cellular guanylate kinase and then via other cellular enzymes to the Triphosphate, which is the pharmacologically active form of the drug.

• Herpes simplex infection: For normal or immunocompromised immune status: 5 mg/kg every 8 hours
• Very severe Herpes zoster infection (shingles): For normal immune status: 5 mg/kg every 8 hours
• Varicella zoster infection: For immunocompromised immune status: 10 mg/kg every 8 hours
• Herpes simplex encephalitis: For normal or immunocompromised immune status: 10 mg/kg every 8 hours

Each dose should be administered by slow intravenous infusion over a one-hour period.

It is recommended that Acyclovir IV Injection for Intravenous Infusion should be administered for five to seven days in the treatment of most infections and for at least ten days in the treatment of Herpes simplex encephalitis.

Acyclovir IV Injection after reconstitution may be injected directly into a vein over one hour by a controlled-rate infusion pump or be further diluted for administration by infusion. For intravenous infusion each vial of Acyclovir IV Injection should be reconstituted and then, wholly or in part according to the dosage required, added to and mixed with at least 50 mL-100 ml infusion solution. A maximum of 250 mg & 500 mg of Acyclovir may be added to 50 ml & 100 ml infusion solution respectively. After addition of Acyclovir IV Injection to an infusion solution the mixture should be shaken to ensure thorough mixing. Acyclovir IV Injection when diluted in accordance with the above schedule will give an Acyclovir concentration not greater than 0.5% w/v.

Acyclovir IV Injection is known to be compatible with the following infusion fluids and stable for up to 12 hours at room temperature (below 25°C) when diluted to a concentration not greater than 0.5% w/v Acyclovir.

• Sodium Chloride Intravenous Infusion BP (0.45% and 0.9% w/v)
• Sodium Chloride (0.18% w/v) and Glucose (4% w/v) Intravenous Infusion
• Sodium Chloride (0.45% w/v) and Glucose (2.5% w/v) Intravenous Infusion
• Compound Sodium Lactate Intravenous Infusion BP (Hartmann's Solution)

Acyclovir IV Injection for Intravenous Infusion contains no preservative. Reconstitution and dilution should therefore be carried out immediately before use and any unused solution should be discarded. The solution should not be refrigerated.

Some infrequent adverse reactions are lethargy, obtundation, tremors, confusion, hallucinations, agitation, somnolence, psychosis, convulsions and coma, phlebitis, nausea, vomiting, reversible increases in liver-related enzymes, pruritus, urticaria, rashes, increases in blood urea and creatinine. Local inflammatory reactions may occur if Acyclovir IV Infusion is inadvertently infused into extracellular tissues.

Acyclovir IV Injection is contraindicated in patients known to be hypersensitive to Acyclovir or Valacyclovir.

Acyclovir IV injection is intended for intravenous infusion only and should not be used through any other route. Reconstituted Acyclovir IV Infusion has a pH of approximately 11.0 and should not be administered by mouth. Acyclovir IV injection as infusion must be given over a period of at least one hour in order to avoid renal tubular damage. It should not be administered as a bolus injection. Acyclovir IV infusion must be accompanied by adequate hydration. Since maximum urine concentration occurs within the first few hours following infusion, particular attention should be given to establish sufficient urine ‑ow during that period. Concomitant use of other nephrotoxic drugs, pre-existing renal disease and dehydration increase the risk of further renal impairment by Acyclovir. As Acyclovir has been associated with reversible encephalopathic changes, it should be used with caution in patients with neurological abnormalities, significant hypoxia or serious renal, hepatic or electrolyte abnormalities.

Co-administration of probenecid with Acyclovir has been shown to increase the mean Acyclovir half-life and the area under the concentration time curve. Urinary excretion and renal clearance correspondingly reduced. In patients over 60 years of age concurrent use of diuretics increases plasma levels of Acyclovir very significantly.

Pregnancy category B. There have been no adequate and well controlled studies concerning the safety of Acyclovir in pregnant women. It should not be used during pregnancy unless the benefits to the patient clearly outweigh the potential risks to the fetus. Acyclovir should only be administered to nursing mothers if the benefits to the mother outweigh the potential risks to the baby. There is no experience of the effect of Acyclovir on human fertility.

Pediatric use: The dose of Acyclovir IV injection in children aged 1-12 years should be calculated on the basis of body surface area. Children in this age group with Herpes simplex infections (except Herpes simplex encephalitis) or Varicella zoster infections should be given Acyclovir IV Infusion in doses of 250 mg/m² (equivalent to 5 mg/kg in adults). Immunocompromised children in this age group with Varicella zoster virus infection or with Herpes simplex encephalitis should be given Acyclovir IV Infusion in doses of 500 mg/m² (equivalent to 10 mg/kg in adults). Children with impaired renal function require an appropriately modified dose, according to the degree of impairment.
 
Geriatric use: No data are available on this age group. However, as creatinine clearance is often low in the elderly, special attention should be given to dosage reduction.

In patients with renal impairment: Acyclovir should be administered with caution since the drug is excreted through the kidneys. The following modifications in dosage are suggested:

• CrCl: 25-50 ml/min: 5 or 10 mg/kg every 12 hours
• CrCl: 10-25 ml/min: 5 or 10 mg/kg every 24 hours
• CrCl: 0-10 ml/min: 2.5 or 5 mg/kg every 24 hours and after dialysis.

Overdosage of intravenous Acyclovir has resulted in elevations of serum creatinine, blood urea nitrogen and subsequent renal failure. Neurological effects including confusion, hallucinations, agitation, seizures and coma have been described in association with over dosage. Adequate hydration is essential to reduce the possibility of crystal formation in the urine. Hemodialysis significantly enhances the removal of Acyclovir from the blood and may, therefore, be considered an option in the management of overdose of Acyclovir.

It is recommended that Acyclovir IV Injection for Intravenous Infusion should be administered for five to seven days in the treatment of most infections and for at least ten days in the treatment of Herpes simplex encephalitis.

Each 250 mg vial of Acyclovir IV Injection should be reconstituted by the addition of 10 ml of either Water for Injection or Sodium Chloride Intravenous Infusion (0.9% w/v). This provides a solution containing 25 mg Acyclovir per ml.

Each 500 mg vial of Acyclovir IV Injection should be reconstituted by the addition of 10 ml of either Water for Injection or Sodium Chloride Intravenous Infusion (0.9% w/v). This provides a solution containing 50 mg Acyclovir per ml.

Store at 15°C to 25°C. Protected from light and moisture. Keep the medicine out of the reach of children.

Acyclovir is indicated for the treatment of Herpes simplex keratitis.

Ophthalmic Anti-viral Products

Acyclovir is an antiviral agent which is highly active in vitro against Herpes simplex (HSV) types I and II and Varicella zoster viruses, but its toxicity to mammalian cells is low. Acyclovir is phosphorylated to the active compound Acyclovir triphosphate after entry into herpes infected cell. The ­first step in this process requires the presence of the viral-coded thymidine kinase. Acyclovir triphosphate acts as an inhibitor of and substrate for the herpes specifi­ed DNA polymerase preventing further viral DNA synthesis without affecting normal cellular processes.

The dosage for all age groups is the same. A 10 mm ribbon of the ointment should be placed inside the lower conjunctival sac ­five times a day at approximately four hourly intervals. Treatment should continue for at least 3 days after healing

Very common: Superfi­cial punctate keratopathy. This did not necessitate an early termination of therapy and healed without apparent sequelae. Common: Transient mild stinging of the eye occurring immediately following application, conjunctivitis. Rare: Blepharitis.

Acyclovir is contraindicated in patients known to be hypersensitive to Acyclovir or Valacyclovir

The recommended dosage, frequency of applications, and length of treatment should not be exceeded.

No clinically signi­ficant interactions have been identi­fied.

Pregnancy category B. There are no adequate and well-controlled studies of Acyclovir in pregnant women. It is not known whether topically applied Acyclovir is excreted in breast milk.

No adverse effects would be expected if the entire contents of the tube containing 90 mg Acyclovir were ingested orally.

Store in a cool and dry place. Keep away from light. Keep out of reach of children. Do not touch the tip of the tube since this may contaminate the product. After one month of the opening do not use the medicine of tube.

Aciclovir is indicated for-

• The treatment of viral infections due to Herpes simplex virus (type I & II) and Varicella zoster virus (herpes zoster & chicken pox).
• The treatment of Herpes simplex virus infections of the skin and mucous membranes including initial and recurrent genital herpes and herpes labialis.
• The prophylaxis of Herpes simplex infections in immunocompromised patients

Herpes simplex & Varicella-zoster virus infections

Aciclovir is a synthetic purine derivative. Aciclovir exerts its antiviral effect on Herpes simplex virus (HSV) and Varicella-zoster virus by interfering with DNA synthesis and inhibiting viral replication. In cells infected with herpes virus, the antiviral activity of Aciclovir appears to depend principally on the intracellular conversion of the drug to Aciclovir Triphosphate. Aciclovir is converted to Aciclovir Monophosphate principally via virus coded thymidine kinase; the monophosphate is phosphorylated to the diphosphate via cellular guanylate kinase and then via another cellular enzyme to the triphosphate, which is the pharmacologically active form of the drug. 15-30% of an oral dose of the drug is absorbed from Gl tract. Peak plasma concentrations usually occur within 1.5-2 hours after oral administration. It is widely distributed into body tissues and fluids including the brain, saliva, lungs, liver, muscle, spleen, uterus, vaginal mucosa and secretions, CSF, and herpetic vesicular fluid. Aciclovir is excreted through the kidney by the glomerular filtration & tubular secretion.

Treatment of initial herpes simplex: 200 mg 5 times daily usually for 5 days.

For immunocompromised patients:

• Adult: 400 mg 5 times daily for 5 days (longer if new lesions appear during treatment or if healing is incomplete; increase dose to 800 mg 5 times daily for genital herpes in immunocompromised) or as directed by the registered physician.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Prevention of recurrence of herpes simplex:

• Adult: 200 mg 4 times daily or 400 mg twice daily possibly reduced to 200 mg 2 or 3 times daily and interrupted every 6-12 months.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Prophylactic treatment of herpes simplex in the immunocompromised patients:

• Adult: 200 to 400 mg 4 times daily.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Treatment of vericella (chicken pox):

• Adult and children over 40 kg: 800 mg 4 times daily for 5 days.
• Children below 40 kg: 20 mg/kg (maximum 800 mg) per dose orally 4 times daily (80 mg/kg/day) for 5 days.
• Children 1 month-2 years: 200 mg 4 times daily for 5 days.
• Children 2-5 years:400 mg 4 times daily for 5 days.
• Children 6-12 years:800 mg 4 times daily for 5 days.

Treatment of herpes zoster (Shingles): 800 mg 5 times daily for 7 days.

Treatment of initial rectal (Proctitis) herpes infections: An oral Aciclovir dosage of 400 mg 5 times daily for 10 days or until clinical resolution occurs has been recommended.

Renal Impairment: For patients with severe renal impairment, a reduction of the doses is recommended.

Rash, gastrointestinal disturbance, rise in bilirubin and liver-related enzymes, increase in blood urea and creatinine, decrease in hematological indices, headache, neurological reaction, fatigue.

Aciclovir is contraindicated in patients known to be hypersensitive to Aciclovir.

Aciclovir should be administered with caution in patients with renal impairment and doses should be adjusted according to creatinine clearance. Monitor neutrophil count at least twice weekly in neonates.

Probenecid reduces Aciclovir excretion and so increases plasma concentration and risk of toxicity.

Pregnancy category B. Aciclovir should not be used during pregnancy unless the potential benefit justifies the potential risk to the fetus. Caution should be exercised when it is administered to a nursing mother.

Should be stored below 25°C. It should be protected from light and moisture.Keep out of the reach of children.

Aciclovir is indicated for-

• The treatment of viral infections due to Herpes simplex virus (type I & II) and Varicella zoster virus (herpes zoster & chicken pox).
• The treatment of Herpes simplex virus infections of the skin and mucous membranes including initial and recurrent genital herpes and herpes labialis.
• The prophylaxis of Herpes simplex infections in immunocompromised patients

Herpes simplex & Varicella-zoster virus infections

Aciclovir is a synthetic purine derivative. Aciclovir exerts its antiviral effect on Herpes simplex virus (HSV) and Varicella-zoster virus by interfering with DNA synthesis and inhibiting viral replication. In cells infected with herpes virus, the antiviral activity of Aciclovir appears to depend principally on the intracellular conversion of the drug to Aciclovir Triphosphate. Aciclovir is converted to Aciclovir Monophosphate principally via virus coded thymidine kinase; the monophosphate is phosphorylated to the diphosphate via cellular guanylate kinase and then via another cellular enzyme to the triphosphate, which is the pharmacologically active form of the drug. 15-30% of an oral dose of the drug is absorbed from Gl tract. Peak plasma concentrations usually occur within 1.5-2 hours after oral administration. It is widely distributed into body tissues and fluids including the brain, saliva, lungs, liver, muscle, spleen, uterus, vaginal mucosa and secretions, CSF, and herpetic vesicular fluid. Aciclovir is excreted through the kidney by the glomerular filtration & tubular secretion.

Treatment of initial herpes simplex: 200 mg 5 times daily usually for 5 days.

For immunocompromised patients:

• Adult: 400 mg 5 times daily for 5 days (longer if new lesions appear during treatment or if healing is incomplete; increase dose to 800 mg 5 times daily for genital herpes in immunocompromised) or as directed by the registered physician.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Prevention of recurrence of herpes simplex:

• Adult: 200 mg 4 times daily or 400 mg twice daily possibly reduced to 200 mg 2 or 3 times daily and interrupted every 6-12 months.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Prophylactic treatment of herpes simplex in the immunocompromised patients:

• Adult: 200 to 400 mg 4 times daily.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Treatment of vericella (chicken pox):

• Adult and children over 40 kg: 800 mg 4 times daily for 5 days.
• Children below 40 kg: 20 mg/kg (maximum 800 mg) per dose orally 4 times daily (80 mg/kg/day) for 5 days.
• Children 1 month-2 years: 200 mg 4 times daily for 5 days.
• Children 2-5 years:400 mg 4 times daily for 5 days.
• Children 6-12 years:800 mg 4 times daily for 5 days.

Treatment of herpes zoster (Shingles): 800 mg 5 times daily for 7 days.

Treatment of initial rectal (Proctitis) herpes infections: An oral Aciclovir dosage of 400 mg 5 times daily for 10 days or until clinical resolution occurs has been recommended.

Renal Impairment: For patients with severe renal impairment, a reduction of the doses is recommended.

Rash, gastrointestinal disturbance, rise in bilirubin and liver-related enzymes, increase in blood urea and creatinine, decrease in hematological indices, headache, neurological reaction, fatigue.

Aciclovir is contraindicated in patients known to be hypersensitive to Aciclovir.

Aciclovir should be administered with caution in patients with renal impairment and doses should be adjusted according to creatinine clearance. Monitor neutrophil count at least twice weekly in neonates.

Probenecid reduces Aciclovir excretion and so increases plasma concentration and risk of toxicity.

Pregnancy category B. Aciclovir should not be used during pregnancy unless the potential benefit justifies the potential risk to the fetus. Caution should be exercised when it is administered to a nursing mother.

Should be stored below 25°C. It should be protected from light and moisture.Keep out of the reach of children.

Herpes simplex & Varicella-zoster virus infections

Acyclovir exerts its antiviral e­ects on Herpes simplex virus and Varicella zoster virus by interfering with DNA synthesis and inhibiting viral replication. In cells infected with Herpes virus, the antiviral activity of Acyclovir appears to depend principally on the intracellular conversion of the drug to Acyclovir Triphosphate. Acyclovir is converted to Acyclovir Monophosphate principally via virus coded thymidine kinase, the monophosphate is phosphorylated to diphosphate via cellular guanylate kinase and then via other cellular enzymes to the Triphosphate, which is the pharmacologically active form of the drug.

• Herpes simplex infection: For normal or immunocompromised immune status: 5 mg/kg every 8 hours
• Very severe Herpes zoster infection (shingles): For normal immune status: 5 mg/kg every 8 hours
• Varicella zoster infection: For immunocompromised immune status: 10 mg/kg every 8 hours
• Herpes simplex encephalitis: For normal or immunocompromised immune status: 10 mg/kg every 8 hours

Each dose should be administered by slow intravenous infusion over a one-hour period.

It is recommended that Acyclovir IV Injection for Intravenous Infusion should be administered for five to seven days in the treatment of most infections and for at least ten days in the treatment of Herpes simplex encephalitis.

Acyclovir IV Injection after reconstitution may be injected directly into a vein over one hour by a controlled-rate infusion pump or be further diluted for administration by infusion. For intravenous infusion each vial of Acyclovir IV Injection should be reconstituted and then, wholly or in part according to the dosage required, added to and mixed with at least 50 mL-100 ml infusion solution. A maximum of 250 mg & 500 mg of Acyclovir may be added to 50 ml & 100 ml infusion solution respectively. After addition of Acyclovir IV Injection to an infusion solution the mixture should be shaken to ensure thorough mixing. Acyclovir IV Injection when diluted in accordance with the above schedule will give an Acyclovir concentration not greater than 0.5% w/v.

Acyclovir IV Injection is known to be compatible with the following infusion fluids and stable for up to 12 hours at room temperature (below 25°C) when diluted to a concentration not greater than 0.5% w/v Acyclovir.

• Sodium Chloride Intravenous Infusion BP (0.45% and 0.9% w/v)
• Sodium Chloride (0.18% w/v) and Glucose (4% w/v) Intravenous Infusion
• Sodium Chloride (0.45% w/v) and Glucose (2.5% w/v) Intravenous Infusion
• Compound Sodium Lactate Intravenous Infusion BP (Hartmann's Solution)

Acyclovir IV Injection for Intravenous Infusion contains no preservative. Reconstitution and dilution should therefore be carried out immediately before use and any unused solution should be discarded. The solution should not be refrigerated.

Some infrequent adverse reactions are lethargy, obtundation, tremors, confusion, hallucinations, agitation, somnolence, psychosis, convulsions and coma, phlebitis, nausea, vomiting, reversible increases in liver-related enzymes, pruritus, urticaria, rashes, increases in blood urea and creatinine. Local inflammatory reactions may occur if Acyclovir IV Infusion is inadvertently infused into extracellular tissues.

Acyclovir IV Injection is contraindicated in patients known to be hypersensitive to Acyclovir or Valacyclovir.

Acyclovir IV injection is intended for intravenous infusion only and should not be used through any other route. Reconstituted Acyclovir IV Infusion has a pH of approximately 11.0 and should not be administered by mouth. Acyclovir IV injection as infusion must be given over a period of at least one hour in order to avoid renal tubular damage. It should not be administered as a bolus injection. Acyclovir IV infusion must be accompanied by adequate hydration. Since maximum urine concentration occurs within the first few hours following infusion, particular attention should be given to establish sufficient urine ‑ow during that period. Concomitant use of other nephrotoxic drugs, pre-existing renal disease and dehydration increase the risk of further renal impairment by Acyclovir. As Acyclovir has been associated with reversible encephalopathic changes, it should be used with caution in patients with neurological abnormalities, significant hypoxia or serious renal, hepatic or electrolyte abnormalities.

Co-administration of probenecid with Acyclovir has been shown to increase the mean Acyclovir half-life and the area under the concentration time curve. Urinary excretion and renal clearance correspondingly reduced. In patients over 60 years of age concurrent use of diuretics increases plasma levels of Acyclovir very significantly.

Pregnancy category B. There have been no adequate and well controlled studies concerning the safety of Acyclovir in pregnant women. It should not be used during pregnancy unless the benefits to the patient clearly outweigh the potential risks to the fetus. Acyclovir should only be administered to nursing mothers if the benefits to the mother outweigh the potential risks to the baby. There is no experience of the effect of Acyclovir on human fertility.

Pediatric use: The dose of Acyclovir IV injection in children aged 1-12 years should be calculated on the basis of body surface area. Children in this age group with Herpes simplex infections (except Herpes simplex encephalitis) or Varicella zoster infections should be given Acyclovir IV Infusion in doses of 250 mg/m² (equivalent to 5 mg/kg in adults). Immunocompromised children in this age group with Varicella zoster virus infection or with Herpes simplex encephalitis should be given Acyclovir IV Infusion in doses of 500 mg/m² (equivalent to 10 mg/kg in adults). Children with impaired renal function require an appropriately modified dose, according to the degree of impairment.
 
Geriatric use: No data are available on this age group. However, as creatinine clearance is often low in the elderly, special attention should be given to dosage reduction.

In patients with renal impairment: Acyclovir should be administered with caution since the drug is excreted through the kidneys. The following modifications in dosage are suggested:

• CrCl: 25-50 ml/min: 5 or 10 mg/kg every 12 hours
• CrCl: 10-25 ml/min: 5 or 10 mg/kg every 24 hours
• CrCl: 0-10 ml/min: 2.5 or 5 mg/kg every 24 hours and after dialysis.

Overdosage of intravenous Acyclovir has resulted in elevations of serum creatinine, blood urea nitrogen and subsequent renal failure. Neurological effects including confusion, hallucinations, agitation, seizures and coma have been described in association with over dosage. Adequate hydration is essential to reduce the possibility of crystal formation in the urine. Hemodialysis significantly enhances the removal of Acyclovir from the blood and may, therefore, be considered an option in the management of overdose of Acyclovir.

It is recommended that Acyclovir IV Injection for Intravenous Infusion should be administered for five to seven days in the treatment of most infections and for at least ten days in the treatment of Herpes simplex encephalitis.

Each 250 mg vial of Acyclovir IV Injection should be reconstituted by the addition of 10 ml of either Water for Injection or Sodium Chloride Intravenous Infusion (0.9% w/v). This provides a solution containing 25 mg Acyclovir per ml.

Each 500 mg vial of Acyclovir IV Injection should be reconstituted by the addition of 10 ml of either Water for Injection or Sodium Chloride Intravenous Infusion (0.9% w/v). This provides a solution containing 50 mg Acyclovir per ml.

Store at 15°C to 25°C. Protected from light and moisture. Keep the medicine out of the reach of children.

Acyclovir cream is a herpes simplex virus (HSV) nucleoside analogue DNA polymerase inhibitor indicated for the treatment of recurrent herpes labialis (cold sores) in immunocompetent adults and adolescents 12 years of age and older.

Topical Antiviral preparations

Acyclovir is an antiviral drug active against herpes simplex virus. Acyclovir is a synthetic purine nucleoside analogue with cell culture and in vivo inhibitory activity against HSV types 1 (HSV-1) and 2 (HSV-2). The inhibitory activity of acyclovir is highly selective due to its affinity for the enzyme thymidine kinase (TK) encoded by HSV. This viral enzyme converts acyclovir into acyclovir monophosphate, a nucleotide analogue. The monophosphate is further converted into diphosphate by cellular guanylate kinase and into triphosphate by a number of cellular enzymes. In cell culture, acyclovir triphosphate stops replication of herpes viral DNA. This inhibition is accomplished in 3 ways: 1) competitive inhibition of viral DNA polymerase, 2) incorporation into and termination of the growing viral DNA chain, and 3) inactivation of the viral DNA polymerase.

Acyclovir cream should be applied five times per day for four days. Therapy should be initiated as early as possible following the onset of signs or symptoms of herpes labialis i.e., during the prodrome or when lesions appear. For adolescents 12 years of age and older, the dosage is the same as in adults.

The most common adverse reactions at the site of topical application were dry lips, desquamation, dryness of skin, cracked lips, burning skin, pruritus, flakiness of skin, and stinging on skin; each adverse reaction occurred in less than 1% of patients receiving Acyclovir cream and placebo. Three patients on Acyclovir cream and one patient on placebo discontinued treatment due to an adverse event.

Acyclovir cream is contraindicated in patients with known hypersensitivity to acyclovir, valacyclovir, or any component of the formulation.

Acyclovir cream should only be applied on the affected external aspects of the lips and face in patients with herpes labialis. Because no data are available, application to human mucous membranes is not recommended. Acyclovir cream is intended for cutaneous use only and should not be used in the eye or inside the mouth or nose. Cream has a potential for irritation and contact. The effect of Acyclovir cream has not been established in immunocompromised patients.

Clinical experience has identified no interactions resulting from topical or systemic administration of other drugs concomitantly with Acyclovir cream. Due to minimal systemic absorption of Acyclovir cream, systemic drug interactions are unlikely.

Pregnancy Category B. There are no adequate and well-controlled studies of acyclovir cream in pregnant women. Acyclovir cream should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It is not known whether topically applied acyclovir is excreted in breast milk. Systemic exposure following topical administration is minimal.

Pediatric Use: An open-label, uncontrolled trial with Acyclovir cream 5% was conducted in 113 patients aged 12 to 17 years with recurrent herpes labialis. In this trial, therapy was applied using the same dosing regimen as in adults and subjects were followed for adverse events. The safety profile was similar to that observed in adults. Safety and effectiveness in pediatric patients less than 12 years of age have not been established.

Geriatric Use: Clinical studies of acyclovir cream did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. Systemic absorption of acyclovir after topical administration is minimal.

Store Acyclovir cream at room temperature between 20°C to 25°C

Aciclovir is indicated for-

• The treatment of viral infections due to Herpes simplex virus (type I & II) and Varicella zoster virus (herpes zoster & chicken pox).
• The treatment of Herpes simplex virus infections of the skin and mucous membranes including initial and recurrent genital herpes and herpes labialis.
• The prophylaxis of Herpes simplex infections in immunocompromised patients

Herpes simplex & Varicella-zoster virus infections

Aciclovir is a synthetic purine derivative. Aciclovir exerts its antiviral effect on Herpes simplex virus (HSV) and Varicella-zoster virus by interfering with DNA synthesis and inhibiting viral replication. In cells infected with herpes virus, the antiviral activity of Aciclovir appears to depend principally on the intracellular conversion of the drug to Aciclovir Triphosphate. Aciclovir is converted to Aciclovir Monophosphate principally via virus coded thymidine kinase; the monophosphate is phosphorylated to the diphosphate via cellular guanylate kinase and then via another cellular enzyme to the triphosphate, which is the pharmacologically active form of the drug. 15-30% of an oral dose of the drug is absorbed from Gl tract. Peak plasma concentrations usually occur within 1.5-2 hours after oral administration. It is widely distributed into body tissues and fluids including the brain, saliva, lungs, liver, muscle, spleen, uterus, vaginal mucosa and secretions, CSF, and herpetic vesicular fluid. Aciclovir is excreted through the kidney by the glomerular filtration & tubular secretion.

Treatment of initial herpes simplex: 200 mg 5 times daily usually for 5 days.

For immunocompromised patients:

• Adult: 400 mg 5 times daily for 5 days (longer if new lesions appear during treatment or if healing is incomplete; increase dose to 800 mg 5 times daily for genital herpes in immunocompromised) or as directed by the registered physician.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Prevention of recurrence of herpes simplex:

• Adult: 200 mg 4 times daily or 400 mg twice daily possibly reduced to 200 mg 2 or 3 times daily and interrupted every 6-12 months.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Prophylactic treatment of herpes simplex in the immunocompromised patients:

• Adult: 200 to 400 mg 4 times daily.
• Children under 2 years: Half of the adult dose.
• Children over 2 years: Adult dose.

Treatment of vericella (chicken pox):

• Adult and children over 40 kg: 800 mg 4 times daily for 5 days.
• Children below 40 kg: 20 mg/kg (maximum 800 mg) per dose orally 4 times daily (80 mg/kg/day) for 5 days.
• Children 1 month-2 years: 200 mg 4 times daily for 5 days.
• Children 2-5 years:400 mg 4 times daily for 5 days.
• Children 6-12 years:800 mg 4 times daily for 5 days.

Treatment of herpes zoster (Shingles): 800 mg 5 times daily for 7 days.

Treatment of initial rectal (Proctitis) herpes infections: An oral Aciclovir dosage of 400 mg 5 times daily for 10 days or until clinical resolution occurs has been recommended.

Renal Impairment: For patients with severe renal impairment, a reduction of the doses is recommended.

Rash, gastrointestinal disturbance, rise in bilirubin and liver-related enzymes, increase in blood urea and creatinine, decrease in hematological indices, headache, neurological reaction, fatigue.

Aciclovir is contraindicated in patients known to be hypersensitive to Aciclovir.

Aciclovir should be administered with caution in patients with renal impairment and doses should be adjusted according to creatinine clearance. Monitor neutrophil count at least twice weekly in neonates.

Probenecid reduces Aciclovir excretion and so increases plasma concentration and risk of toxicity.

Pregnancy category B. Aciclovir should not be used during pregnancy unless the potential benefit justifies the potential risk to the fetus. Caution should be exercised when it is administered to a nursing mother.

Should be stored below 25°C. It should be protected from light and moisture.Keep out of the reach of children.

Acyclovir & Hydrocortisone Cream is indicated for the early treatment of recurrent herpes labialis (cold sores) to reduce the likelihood of ulcerative cold sores and to shorten the lesion healing time in adults and children (6 years of age and older).

Hydrocortisone & Combined preparations

Acyclovir is a synthetic purine nucleoside analogue with inhibitory activity against Herpes simplex viruses type 1 (HSV-1) and type 2 (HSV-2) in cell culture and in vivo. The inhibitory activity of Acyclovir is highly selective due to its affinity for the enzyme thymidine kinase (TK) encoded by HSV. This viral enzyme converts Acyclovir into Acyclovir monophosphate, a nucleotide analogue. The monophosphate is further converted into diphosphate by cellular guanylate kinase and into triphosphate by a number of cellular enzymes. In cell culture, Acyclovir Triphosphate stops replication of herpes viral DNA. This inhibition is accomplished in 3 ways:

• Competitive inhibition of viral DNA polymerase
• Incorporation into and termination of the growing viral DNA chain
• Inactivation of the viral DNA polymerase

Hydrocortisone is the main glucocorticoid secreted by the adrenal cortex. It is used topically for its anti-inflammatory effects which suppress the clinical manifestations of the disease in a wide range of disorders where inflammation is a prominent feature.

The cream should be topically applied 5 times per day for 5 days. Therapy should be initiated as early as possible after the first signs and symptoms.

The following most common adverse reactions (<1%) were local skin reactions like drying or flaking of the skin; burning or tingling, erythema; pigmentation changes, application site reactions including signs and symptoms of inflammation.

There is no known contraindication.

Acyclovir and Hydrocortisone should not be used in the eye, inside the mouth or nose, or on the genitals. Patients should seek medical advice when a cold sore fails to heal within 2 weeks.

Pregnancy Category B. There are no adequate and well-controlled studies of systemic Acyclovir in pregnant women. No studies have been performed in pregnant women. Systemic exposure of Acyclovir and Hydrocortisone following topical administration of this cream is minimal. It is not known whether topically applied Acyclovir or Hydrocortisone is excreted in breast milk. Because many drugs are excreted in human milk, caution should be exercised when administered to a nursing woman.

Safety and effectiveness in pediatric subjects less than 6 years of age have not been established.

Keep below 30°C temperature, away from light & moisture. Keep out of the reach of children.

Azithromycin is acid-stable and can therefore be taken orally with no need of protection from gastric acids. It is readily absorbed; its absorption is greater on an empty stomach. Time to peak concentration in adults is 2.1 to 3.2 hours for oral dosage forms. Due to the high concentration in phagocytes, azithromycin is actively transported to the site of infection. During active phagocytosis, large concentrations of azithromycin are released. The concentration of azithromycin in the tissues can be over 50 times higher than in plasma. This is due to ion trapping and the high lipid solubility.

Azithromycin's half-life allows a large single dose to be administered and yet maintain bacteriostatic levels in the infected tissue for several days. Following a single 500 mg dose, plasma concentrations of azithromycin declined in a polyphasic pattern with a mean apparent plasma clearance of 630 mL/min and a terminal elimination half life of 68 hours. The prolonged terminal half-life is thought to be due to extensive uptake and subsequent release of drug from tissues. Biliary excretion of azithromycin, predominantly unchanged, is a major route of elimination. Over the course of a week, approximately 6% of the administered dose appears as unchanged drug in urine.

Microbiology: Azithromycin acts by binding to the 50S ribosomal subunit of susceptible microorganisms and, thus, interfering with microbial protein synthesis. Nucleic acid synthesis is not affected. Azithromycin has been shown to be active against most isolates of the following microorganisms, both in vitro and in clinical infections:

• Aerobic and facultative gram-positive microorganisms: Staphylococcus aureus, Streptococcus agalactiae, Streptococcus pneumoniae, Streptococcus pyogenes
• Aerobic and facultative gram-negative microorganisms: Haemophilus ducreyi, Haemophilus influenzae, Moraxella catarrhalis, Neisseria gonorrhoeae
• Other microorganisms: Chlamydia pneumoniae, Chlamydia trachomatis , Mycoplasma pneumoniae , Betalactamase production should have no effect on azithromycin activity.
• Aerobic and facultative gram-positive microorganisms: Streptococci (Groups C,F,G), Viridans group streptococci
• Aerobic and facultative gram-negative microorganisms: Bordetella pertussis, Legionella pneumophila
• Anaerobic microorganisms: Peptostreptococcus species, Prevotella bivia

Oral-
Adult: 500 mg once daily orally for 3 days or 500 mg once on day 1, then 250 mg once on days 2-5 for 4 days. For sexually transmitted diseases caused by Chlamydia trachomatis in adults, the dose is 1 gm given as a single dose or 500 mg once on day 1, followed by 250 mg once daily for next 2 days may also be given.

Children:

• 10 mg/kg body weight once daily for 3 days for child over 6 months
• 200 mg (1 teaspoonful) for 3 days if body weight is 15-25 kg
• 300 mg (1½ teaspoonfuls) for 3 days if body weight is 26-35 kg; 400 mg (2 teaspoonfuls) for 3 days if body weight is 36-45 kg.
• In typhoid fever, 500 mg (2½ teaspoonfuls) once daily for 7-10 days is given.

Azithromycin Injection (For IV Infusion only): The recommended dose of Azithromycin for injection for the treatment of adult patients with community-acquired pneumonia due to the indicated organisms is:

• 500 mg as a single daily dose by the intravenous route for at least two days. Intravenous therapy should be followed by Azithromycin by the oral route at a single, daily dose of 500 mg, administered as two 250-mg tablets to complete a 7 to 10-day course of therapy. The timing of the switch to oral therapy should be done at the discretion of the physician and in accordance with clinical response.
• The recommended dose of Azithromycin for the treatment of adult patients with pelvic inflammatory disease due to the indicated organisms is: 500 mg as a single daily dose by the intravenous route for one or two days. Intravenous therapy should be followed by Azithromycin by the oral route at a single, daily dose of 250 mg to complete a 7-day course of therapy. The timing of the switch to oral therapy should be done at the discretion of the physician and in accordance with clinical response. If anaerobic microorganisms are suspected of contributing to the infection, an antimicrobial agent with anaerobic activity should be administered in combination with Azithromycin.
• Safety and effectiveness of azithromycin for injection in children or adolescents under 16 years have not been established.

Reconstitution procedure of suspension-

• Step 01: Shake the bottle well to loosen the powder.
• Step 02: Add boiled and cooled water up to the water mark of the bottle label.
• Step 03: Shake until powder is completely mixed with water.

Azithromycin should be taken at least 1 hour before or 2 hours after meal.

Azithromycin is well tolerated with a low incidence of side effects. The side effects include nausea, vomiting, abdominal discomfort (pain/cramps), flatulence, diarrhoea, headache, dizziness, and skin rashes and are reversible upon discontinuation of therapy.

Azithromycin is contraindicated in patients hypersensitive to Azithromycin or any other macrolide antibiotic. Co-administration of ergot derivatives and Azithromycin is contraindicated. Azithromycin is contraindicated in patients with hepatic diseases.

As with any antibiotic, observation for signs of superinfection with non-susceptible organisms, including fungi, is recommended. No dose adjustment is needed in patients with renal impairment.

Azithromycin absorption is reduced in presence of food and antacid. In patients receiving ergot alkaloids Azithromycin should be avoided because of the possibility of ergotism resulting from interaction of Azithromycin with the cytochrome P-450 system. As macrolides increase the plasma concentration of digoxin and cyclosporin, caution should be exercised while co-administration. There have been no drug interactions between Azithromycin and Warfarin, Theophylline, Carbamazepine, Methylprednisolone or Cimetidine.

Pregnancy Category of Azithromycin is B. Animal reproduction studies have demonstrated that Azithromycin has no evidence of harm to the fetus. There are no adequate and well controlled studies in pregnant women. Since animal reproduction studies are not always predictive of human response, Azithromycin should be used during pregnancy only if adequate alternatives are not available. It is not known whether Azithromycin is secreted in breast milk. So, caution should be exercised when Azithromycin is administered to nursing women.

There is no data on overdosage with Azithromycin. Typical symptoms of overdosage with macrolide antibiotics include hearing loss, severe nausea, vomiting and diarrhoea. Gastric lavage and general supportive measures are indicated.

Keep in a dry place away from light and heat. Keep out of the reach of children.

Azithromycin is acid-stable and can therefore be taken orally with no need of protection from gastric acids. It is readily absorbed; its absorption is greater on an empty stomach. Time to peak concentration in adults is 2.1 to 3.2 hours for oral dosage forms. Due to the high concentration in phagocytes, azithromycin is actively transported to the site of infection. During active phagocytosis, large concentrations of azithromycin are released. The concentration of azithromycin in the tissues can be over 50 times higher than in plasma. This is due to ion trapping and the high lipid solubility.

Azithromycin's half-life allows a large single dose to be administered and yet maintain bacteriostatic levels in the infected tissue for several days. Following a single 500 mg dose, plasma concentrations of azithromycin declined in a polyphasic pattern with a mean apparent plasma clearance of 630 mL/min and a terminal elimination half life of 68 hours. The prolonged terminal half-life is thought to be due to extensive uptake and subsequent release of drug from tissues. Biliary excretion of azithromycin, predominantly unchanged, is a major route of elimination. Over the course of a week, approximately 6% of the administered dose appears as unchanged drug in urine.

Microbiology: Azithromycin acts by binding to the 50S ribosomal subunit of susceptible microorganisms and, thus, interfering with microbial protein synthesis. Nucleic acid synthesis is not affected. Azithromycin has been shown to be active against most isolates of the following microorganisms, both in vitro and in clinical infections:

• Aerobic and facultative gram-positive microorganisms: Staphylococcus aureus, Streptococcus agalactiae, Streptococcus pneumoniae, Streptococcus pyogenes
• Aerobic and facultative gram-negative microorganisms: Haemophilus ducreyi, Haemophilus influenzae, Moraxella catarrhalis, Neisseria gonorrhoeae
• Other microorganisms: Chlamydia pneumoniae, Chlamydia trachomatis , Mycoplasma pneumoniae , Betalactamase production should have no effect on azithromycin activity.
• Aerobic and facultative gram-positive microorganisms: Streptococci (Groups C,F,G), Viridans group streptococci
• Aerobic and facultative gram-negative microorganisms: Bordetella pertussis, Legionella pneumophila
• Anaerobic microorganisms: Peptostreptococcus species, Prevotella bivia

Oral-
Adult: 500 mg once daily orally for 3 days or 500 mg once on day 1, then 250 mg once on days 2-5 for 4 days. For sexually transmitted diseases caused by Chlamydia trachomatis in adults, the dose is 1 gm given as a single dose or 500 mg once on day 1, followed by 250 mg once daily for next 2 days may also be given.

Children:

• 10 mg/kg body weight once daily for 3 days for child over 6 months
• 200 mg (1 teaspoonful) for 3 days if body weight is 15-25 kg
• 300 mg (1½ teaspoonfuls) for 3 days if body weight is 26-35 kg; 400 mg (2 teaspoonfuls) for 3 days if body weight is 36-45 kg.
• In typhoid fever, 500 mg (2½ teaspoonfuls) once daily for 7-10 days is given.

Azithromycin Injection (For IV Infusion only): The recommended dose of Azithromycin for injection for the treatment of adult patients with community-acquired pneumonia due to the indicated organisms is:

• 500 mg as a single daily dose by the intravenous route for at least two days. Intravenous therapy should be followed by Azithromycin by the oral route at a single, daily dose of 500 mg, administered as two 250-mg tablets to complete a 7 to 10-day course of therapy. The timing of the switch to oral therapy should be done at the discretion of the physician and in accordance with clinical response.
• The recommended dose of Azithromycin for the treatment of adult patients with pelvic inflammatory disease due to the indicated organisms is: 500 mg as a single daily dose by the intravenous route for one or two days. Intravenous therapy should be followed by Azithromycin by the oral route at a single, daily dose of 250 mg to complete a 7-day course of therapy. The timing of the switch to oral therapy should be done at the discretion of the physician and in accordance with clinical response. If anaerobic microorganisms are suspected of contributing to the infection, an antimicrobial agent with anaerobic activity should be administered in combination with Azithromycin.
• Safety and effectiveness of azithromycin for injection in children or adolescents under 16 years have not been established.

Reconstitution procedure of suspension-

• Step 01: Shake the bottle well to loosen the powder.
• Step 02: Add boiled and cooled water up to the water mark of the bottle label.
• Step 03: Shake until powder is completely mixed with water.

Azithromycin should be taken at least 1 hour before or 2 hours after meal.

Azithromycin is well tolerated with a low incidence of side effects. The side effects include nausea, vomiting, abdominal discomfort (pain/cramps), flatulence, diarrhoea, headache, dizziness, and skin rashes and are reversible upon discontinuation of therapy.

Azithromycin is contraindicated in patients hypersensitive to Azithromycin or any other macrolide antibiotic. Co-administration of ergot derivatives and Azithromycin is contraindicated. Azithromycin is contraindicated in patients with hepatic diseases.

As with any antibiotic, observation for signs of superinfection with non-susceptible organisms, including fungi, is recommended. No dose adjustment is needed in patients with renal impairment.

Azithromycin absorption is reduced in presence of food and antacid. In patients receiving ergot alkaloids Azithromycin should be avoided because of the possibility of ergotism resulting from interaction of Azithromycin with the cytochrome P-450 system. As macrolides increase the plasma concentration of digoxin and cyclosporin, caution should be exercised while co-administration. There have been no drug interactions between Azithromycin and Warfarin, Theophylline, Carbamazepine, Methylprednisolone or Cimetidine.

Pregnancy Category of Azithromycin is B. Animal reproduction studies have demonstrated that Azithromycin has no evidence of harm to the fetus. There are no adequate and well controlled studies in pregnant women. Since animal reproduction studies are not always predictive of human response, Azithromycin should be used during pregnancy only if adequate alternatives are not available. It is not known whether Azithromycin is secreted in breast milk. So, caution should be exercised when Azithromycin is administered to nursing women.

There is no data on overdosage with Azithromycin. Typical symptoms of overdosage with macrolide antibiotics include hearing loss, severe nausea, vomiting and diarrhoea. Gastric lavage and general supportive measures are indicated.

Keep in a dry place away from light and heat. Keep out of the reach of children.

Vitamin-A preparations

Beta-carotene, retinol, and retinal have effective and reliable vitamin A activity. Retinal and retinol are in chemical equilibrium in the body and have equivalent antixerophthalmic activity. Retinal combines with the rod pigment, opsin, in the retina to form rhodopsin, necessary for visual dark adaptation.

Vitamin A prevents retardation of growth and preserves the epithe-lial cells' integrity. Normal adult liver storage is sufficient to satisfy two years'requirements of vitamin A. Vitamin A is readily absorbed from the gastrointestinal tract, where the biosynthesis of vitamin A from beta-carotene takes place. Vitamin A absorption requires bile salts, pancreatic lipase, and dietary fat. It is transported in the blood to the liver by the chy lomicron fraction of the lymph. Vitamin Ais stored in Kupffer cells of the liver mainly as the palmitate. Normal serum vitamin A is 80-300 Units per 100 mL (plasma range is 30-70 mcg per dl) and for carotenoids 270-753 Units per 100 mL.The normal adult liver contains approximately 100 to 300 micrograms per gram, mostly as retinol palmitate.

For Adults: 50000 IU-100000 IU daily up to 200000 IU if necessary.

Children (Above 1 year):

• Night blindness, Bitot's spots, Xerophthalmia: 200000 IU 1st day, 2nd day, 14th day
• Measles: 200000 IU 1st day, 2nd day
• Diarrhoea, Respiratory tract infection: 200000 IU every time after disease
• Severe malnutrition: 200000 IU single-dose or as directed by the registered physician.

Vitamin A intoxication includes irritability, vomiting, loss of appetite, headache, dry and pruritic skin, skin desquamation, fatique, pain in ankles and feet, myalgia, loss of body hair, papilledema, nystagmus, liver sclerosis and cirrhosis.

Hypervitaminosis of vitamin A. Sensitivity to any of the ingredients in this preparation.

Ensure Vitamin A free interval after long term therapy with vitamin A. No daily dose over 5000 IU during pregnancy. Vitamin A doses over 50000 IU under medical supervision only.

Safety of amounts exceeding 6,000 Units of vitamin A daily during pregnancy has not been established at this time. The use of vitamin A in excess of the recommended dietary allowance may cause fetal harm when administered to a pregnant woman. Animal reproduction studies have shown fetal abnormalities associated with over-dosage in several species. Malformations of the central nervous system, the eye, the palate, and the urogenital tract are recorded. Vitamin Ain excess of the recommended dietary allowance is contraindicated in women who are or may become pregnant. If vitamin Ais used during pregnancy, or if the patient becomes pregnant while taking vitamin A, the patient should be apprised of the potential hazard to the fetus. 

The U.S. Recommended Daily Allowance (RDA) of vitamin A (5,000 Units) is recommended for nursing mothers.

Keep below 25°C temperature, away from light & moisture. Keep out of the reach of children.

Tiemonium Methylsulphate is an antispasmodic drug that reduces muscles spasm of the intestine, biliary system, bladder and uterus. It is used in symptomatic treatment of pain related to functional disorders of the digestive tract and biliary system. It is also indicated for the treatment of spasm and pain in urological and gynaecological diseases.

Anticholinergics

Tiemonium Methylsulphate a competitive antagonist of Acetylcholine, Histamine and strengthens of calcium bond with membrane phospholipids and proteins. Thus inhibits intracellular contractile protein of visceral cell which causes inhibition of visceral spasm and pain.

Tablet/Syrup-

• Adult: usual dose is 2-6 tablets or 3-9 teaspoonfuls syrup daily in divided doses.
• Children: 3 ml/kg or 6 mg/kg body weight daily in divided doses.

Injection: 1 Tiemonium Methylsulphate Injection 3 times daily, through Intravenous route slowly or Intramuscular route.

Suppository: 20 mg Tiemonium Methylsulphate suppository two or three times daily, through rectal route.

Tiemonium Methylsulphate may have the risk of hypotension & tachycardia in certain individuals.

It should not be used in urethroprostatic disorder involving a risk of urine retension. It is contraindicated in patient with having risk of angle closure glaucoma.

Caution should be taken during treatment of patients with disorders of the prostate. Caution should also be taken in case of chronic bronchitis, coronary insufficiency, ambient hyperthermia, renal & hepatic insufficiency. The risks of visual disturbances can make it dangerous to drive or use machines.

Tiemonium methylsulphate tablet should not be used with other drugs without prior consult of a registered physician to avoid possible drug interaction.

The results of animal studies of Tiemonium Methylsulphate did not reveal any teratogenic effects; no deformities have been reported up till now with normal use. In absence of sufficient data, prudence should be the rule for nursing mothers although no problems have been reported with normal use.

Paediatric use: safety and effectiveness of Tiemonium methylsulphate in paediatric patients have not been established.

Geriatric use: Efficacy and safety were maintained with increasing age.

There is not available data regarding the overdose of Tiemonium methylsulphate tablet.

Keep in a dry place, away from light and heat. Keep out of the reach of children.

Tiemonium Methylsulphate is an antispasmodic drug that reduces muscles spasm of the intestine, biliary system, bladder and uterus. It is used in symptomatic treatment of pain related to functional disorders of the digestive tract and biliary system. It is also indicated for the treatment of spasm and pain in urological and gynaecological diseases.

Anticholinergics

Tiemonium Methylsulphate a competitive antagonist of Acetylcholine, Histamine and strengthens of calcium bond with membrane phospholipids and proteins. Thus inhibits intracellular contractile protein of visceral cell which causes inhibition of visceral spasm and pain.

Tablet/Syrup-

• Adult: usual dose is 2-6 tablets or 3-9 teaspoonfuls syrup daily in divided doses.
• Children: 3 ml/kg or 6 mg/kg body weight daily in divided doses.

Injection: 1 Tiemonium Methylsulphate Injection 3 times daily, through Intravenous route slowly or Intramuscular route.

Suppository: 20 mg Tiemonium Methylsulphate suppository two or three times daily, through rectal route.

Tiemonium Methylsulphate may have the risk of hypotension & tachycardia in certain individuals.

It should not be used in urethroprostatic disorder involving a risk of urine retension. It is contraindicated in patient with having risk of angle closure glaucoma.

Caution should be taken during treatment of patients with disorders of the prostate. Caution should also be taken in case of chronic bronchitis, coronary insufficiency, ambient hyperthermia, renal & hepatic insufficiency. The risks of visual disturbances can make it dangerous to drive or use machines.

Tiemonium methylsulphate tablet should not be used with other drugs without prior consult of a registered physician to avoid possible drug interaction.

The results of animal studies of Tiemonium Methylsulphate did not reveal any teratogenic effects; no deformities have been reported up till now with normal use. In absence of sufficient data, prudence should be the rule for nursing mothers although no problems have been reported with normal use.

Paediatric use: safety and effectiveness of Tiemonium methylsulphate in paediatric patients have not been established.

Geriatric use: Efficacy and safety were maintained with increasing age.

There is not available data regarding the overdose of Tiemonium methylsulphate tablet.

Keep in a dry place, away from light and heat. Keep out of the reach of children.

Tiemonium Methylsulphate is an antispasmodic drug that reduces muscles spasm of the intestine, biliary system, bladder and uterus. It is used in symptomatic treatment of pain related to functional disorders of the digestive tract and biliary system. It is also indicated for the treatment of spasm and pain in urological and gynaecological diseases.

Anticholinergics

Tiemonium Methylsulphate a competitive antagonist of Acetylcholine, Histamine and strengthens of calcium bond with membrane phospholipids and proteins. Thus inhibits intracellular contractile protein of visceral cell which causes inhibition of visceral spasm and pain.

Tablet/Syrup-

• Adult: usual dose is 2-6 tablets or 3-9 teaspoonfuls syrup daily in divided doses.
• Children: 3 ml/kg or 6 mg/kg body weight daily in divided doses.

Injection: 1 Tiemonium Methylsulphate Injection 3 times daily, through Intravenous route slowly or Intramuscular route.

Suppository: 20 mg Tiemonium Methylsulphate suppository two or three times daily, through rectal route.

Tiemonium Methylsulphate may have the risk of hypotension & tachycardia in certain individuals.

It should not be used in urethroprostatic disorder involving a risk of urine retension. It is contraindicated in patient with having risk of angle closure glaucoma.

Caution should be taken during treatment of patients with disorders of the prostate. Caution should also be taken in case of chronic bronchitis, coronary insufficiency, ambient hyperthermia, renal & hepatic insufficiency. The risks of visual disturbances can make it dangerous to drive or use machines.

Tiemonium methylsulphate tablet should not be used with other drugs without prior consult of a registered physician to avoid possible drug interaction.

The results of animal studies of Tiemonium Methylsulphate did not reveal any teratogenic effects; no deformities have been reported up till now with normal use. In absence of sufficient data, prudence should be the rule for nursing mothers although no problems have been reported with normal use.

Paediatric use: safety and effectiveness of Tiemonium methylsulphate in paediatric patients have not been established.

Geriatric use: Efficacy and safety were maintained with increasing age.

There is not available data regarding the overdose of Tiemonium methylsulphate tablet.

Keep in a dry place, away from light and heat. Keep out of the reach of children.