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Sildenafil is indicated for the treatment of erectile dysfunction.

Drugs for Erectile Dysfunction

Sildenafil is a selective inhibitor of cyclic Guanosine Monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5) used for treatment of erectile dysfunction. Danafil (Sildenafil) enhances the effect of nitric oxide (NO) by inhibiting phosphodiesterase type 5 (PDE5), which is responsible for degradation of cGMP in the corpus cavernosum that results in smooth muscle relaxation and inflow of blood to the corpus cavernosum.

The recommended dose of Sildenafil is 50 mg taken approximately 1 hour before sexual activity. However, Sildenafil may be taken anywhere from half an hour to 4 hours before sexual activity. Based on effectiveness and toleration, the dose may be increased to a maximum 100 mg or decreased to 25 mg. The maximum recommended dosing frequency is once per day.

Sildenafil may takes longer time to work if you take it with a heavy meal.

The adverse effects treated with Sildenafil are headache, flushing, dyspepsia, nasal congestion, urinary tract infection, abnormal vision, diarrhea, dizziness and rash.

Sildenafil is contraindicated in patient with hypersensitivity to any component of this medication. Sildenafil potentiates the hypotensive effects of nitrates, so it is contraindicated in patients who are using organic nitrates, either regularly or intermittently.

Caution should be exercised if patients have any allergies to any other medicines or any other substances such as foods, preservatives or dyes, heart or blood vessel problems, sudden loss of eyesight in one or both eyes. Caution should be taken if patients have any of the following medical conditions such as diabetes, kidney or liver problems, leukaemia, multiple myeloma, any disease or deformity of penis, any bleeding disorder such as haemophilia, stomach ulcer, sickle cell anaemia, color vision problems, sudden decrease or loss of hearing or receiving any other treatment for impotence.

Concomitant use of Sildenafil with organic nitrates for angina may cause hypotension. Cimetidine, a medicine used to treat gastric ulcers, some antibiotics including Erythromycin and Rifampicin, some protease inhibitors such as Ritonavir and Saquinavir for the treatment of HIV infection may increase the plasma concentration of Sildenafil. Some medicines used to treat fungal infections including Ketoconazole and Itraconazole may reduce the clearance of Sildenafil.

Pregnancy category B. There are no adequate and well-controlled studies of Sildenafil in pregnant women. Sildenafil is not indicated for use by women. In animal study shows that Sildenafil has no evidence of teratogenicity or embryotoxicity.

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

Sildenafil is indicated for the treatment of erectile dysfunction.

Drugs for Erectile Dysfunction

Sildenafil is a selective inhibitor of cyclic Guanosine Monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5) used for treatment of erectile dysfunction. Danafil (Sildenafil) enhances the effect of nitric oxide (NO) by inhibiting phosphodiesterase type 5 (PDE5), which is responsible for degradation of cGMP in the corpus cavernosum that results in smooth muscle relaxation and inflow of blood to the corpus cavernosum.

The recommended dose of Sildenafil is 50 mg taken approximately 1 hour before sexual activity. However, Sildenafil may be taken anywhere from half an hour to 4 hours before sexual activity. Based on effectiveness and toleration, the dose may be increased to a maximum 100 mg or decreased to 25 mg. The maximum recommended dosing frequency is once per day.

Sildenafil may takes longer time to work if you take it with a heavy meal.

The adverse effects treated with Sildenafil are headache, flushing, dyspepsia, nasal congestion, urinary tract infection, abnormal vision, diarrhea, dizziness and rash.

Sildenafil is contraindicated in patient with hypersensitivity to any component of this medication. Sildenafil potentiates the hypotensive effects of nitrates, so it is contraindicated in patients who are using organic nitrates, either regularly or intermittently.

Caution should be exercised if patients have any allergies to any other medicines or any other substances such as foods, preservatives or dyes, heart or blood vessel problems, sudden loss of eyesight in one or both eyes. Caution should be taken if patients have any of the following medical conditions such as diabetes, kidney or liver problems, leukaemia, multiple myeloma, any disease or deformity of penis, any bleeding disorder such as haemophilia, stomach ulcer, sickle cell anaemia, color vision problems, sudden decrease or loss of hearing or receiving any other treatment for impotence.

Concomitant use of Sildenafil with organic nitrates for angina may cause hypotension. Cimetidine, a medicine used to treat gastric ulcers, some antibiotics including Erythromycin and Rifampicin, some protease inhibitors such as Ritonavir and Saquinavir for the treatment of HIV infection may increase the plasma concentration of Sildenafil. Some medicines used to treat fungal infections including Ketoconazole and Itraconazole may reduce the clearance of Sildenafil.

Pregnancy category B. There are no adequate and well-controlled studies of Sildenafil in pregnant women. Sildenafil is not indicated for use by women. In animal study shows that Sildenafil has no evidence of teratogenicity or embryotoxicity.

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

Anti-oxidant Multivitamin preparations

Beta carotene of this tablet is converted to vitamin A (Retinol) when required. Retinol has several biochemical functions e.g. on retina, growth, tissue differentiation, immunological response. It has also some anti-cancer activity.

Vitamin C is the most powerful reducing agent known to be present in living tissues. Vitamin C deficiency produces scurvy. It is a cofactor in numerous biological processes. Vitamin C and molecular oxygen are essential for the conversion of proline to hydroxyproline, dopamine to noradrenaline . Vitamin C is also essential for the synthesis of adrenal steroid hormones. Vitamin C is important in the defense against infection and studies shown that vitamin C is important for the normal functioning of T-lymphocyte and leukocyte. Ascorbic acid has some antiinflammatory activity and protects cells against oxidation of essential molecules. In high doses, (1-2 g daily) ascorbic acid increases iron absorption.

vitamin E seems to be as a defense against oxidative stress and lipid peroxidation. In most cell membranes there is one molecule of tocopherol for every 1000 lipid molecules. Tocopherol mops up peroxide radicals and then needs a supply of reduced hydrogen to restore the steady-state situation. This is usually supplied by ascorbic acid or reduced glutathione.

This tablet is administered orally. The adult dose of this combination of antioxidant vitamin tablet is 1 tablet daily or as prescribed by the physician.

β carotene is comparatively safe even at high and prolonged exposure. Individuals who routinely ingest large amounts of carotenoids can develop hypercarotenosis, which is characterised by a yellowish colouration of the skin and a very high concentration of carotenoids in the plasma. This benign condition, although resembling jaundice, gradually disappears upon correcting the excessive intake of carotenoids.

Vitamin C is generally a safe drug for human use in normal doses. Larger doses may lead to gastrointestinal tract upset and renal stone formation.

Vitamin E is considered safe even in large doses. Doses over 800 mg may cause diarrhoea, abdominal pain or cramps, fatigue and reduced resistance to bacterial infection and transiently raised blood pressure.

Carocet is contraindicated in patients with hypersensitivity to any of its components.

There are some evidences that β carotene may cause harm to heavy smokers and alcoholics. Therefore, caution should be exercised in these cases. Vitamin C should be given with caution to patients with hyperoxaluria. Vitamin E should be used with caution in patients taking anticoagulant drugs, because vitamin E may enhance the anticoagulant activity of these drugs.

Cholestyramine, Colestipol, Neomycin cause decreased absorption of β carotene. Circulating vitamin C levels have been shown to be reduced during prolonged administration of oral contraceptives containing Oestrogen, Tetracycline and Aspirin. The decrease in vitamin C level may be due to drug induced impaired absorption or increased utilization of the vitamin for drug metabolism. Vitamin E may enhance the anticoagulant activity of anticoagulant drugs. High doses of vitamin E can impair intestinal absorption of vitamins A and K.

β carotene, vitamin C and vitamin E have no teratogenic effects in humans. However, like any other drugs caution should be taken in prescribing to pregnant women.

Should be stored in a dry place below 30˚C.

First generation Cephalosporins

Cephradine is a semisynthetic broad spectrum bactericidal antibiotic, it is active against infections caused by both gram-positive and gram-negative microorganisms. Both penicillinase producing and nonproducing staphylococci are sensitive to Cephradine. The main site of action of Cephradine is the cell wall of bacteria. Cell wall of sensitive organism contains peptidoglycan. Cephradine inhibits cross-linking process and as a result cell wall with many pores are formed, thus lysis of bacteria occur due to external osmotic pressure.

For oral administration-
Adults:

• Urinary tract infections: 500mg four times daily or 1g twice daily. Infections which are severe or chronic may necessitate the administration of higher doses. Where complications arise including prostatitis and epididymitis continued intensive treatment is required.
• Respiratory tract infections: 250 to 500mg four times daily or 500mg to 1g twice daily, dependent on the site and severity of the infection.
• Skin and soft tissue infections: 250 to 500mg four times daily or 500mg to 1g twice daily, again dependent on the site and severity of the infection.

Children:

• Total daily dose of 25 to 50mg/kg given in two or four equally divided doses.
• Otitis media: Total daily dose of 75 to 100mg/kg given in divided doses 6 to 12 hourly.
• Maximum daily dosage: 4 gm

Elderly: The normal adult dose is appropriate. Patients with impaired renal or hepatic function should be monitored during treatment.

For injectable administration-

• Adult: The usual dose is 2-4 gm daily in four equally divided doses up to 8 gm daily. For prophylaxis a single preoperative dose of 1-2 gm intramuscularly or intravenously is given.
• Children: The dose is 50-100 mg/kg daily in four equally divided doses, up to 300 mg/kg daily in severe infection.

Limited essentially to gastro-intestinal disturbances and on occasions to hypersensitivity phenomena. The latter are more likely to occur in individuals, who have previously demonstrated hypersensitivity and thos with a history of allergy, asthma, hay fever or urticaria. Skin reactions have occasionally been reported. Rare- Glossitis, heartburn, dizziness, tightness in the chest, nausea, vomiting, diarrhoea, abdominal pain, vaginitis, candida overgrowth. Skin and hypersensitivity reactions include urticaria, skin rashes, joint pains, oedema.

• Blood and lymphatic system disorders- Unknown: blood disorders (including thrombocytopenia, leucopenia, agranulocytosis, aplastic anaemia and haemolytic anaemia)
• Immune system disorders- Unknown: Fever, serum sickness like reactions, anaphylaxis
• Psychiatric disorders- Unknown: Confusion, sleep disturbances
• Nervous system disorders- Unknown: hyperactivity, hypertonia, dizziness, nervousness; Rarely: Headache
• Hepatobiliary disorders- Frequency unknown: Liver, enzyme disturbances, transient hepatitis, cholestatic jaundice
• Renal and urinary disorders- Unknown: Reversible interstitial nephritis
• Investigations- Unknown: Elevation of blood urea nitrogen, serum creatinine, alanine aminotransferase, aspartate aminotransferase, total bilirubin, alkaline phosphatase.

Cephradine should not be used in patients with known or suspected hypersensitivity to cephalosporins.

The concomitant use of nephrotoxic drugs such as aminoglycosides with Cefradine may increase the risk of kidney damage. Diuretics (e.g. frusemide, ethacrynic acid) and probenecid enhanced the possibility of renal toxicity.

Although animal studies have not demonstrated any teratogenicity, safety in pregnancy has not been established. Cephradine is excreted in breast milk and should be used with caution in lactating mothers. Since the medicine may cause dizziness, patients should be cautioned about operating hazardous machinery, including automobiles.

Renal Impairment: The following doses are recommended (based on 500 mg every 6 hours) for patients not on haemodialysis:

• CrCl: >20 ml/min: 500 mg every 6 hours
• CrCl: 5-20 ml/min: 250 mg every 6 hours
• CrCl: <5 ml/min: 250 mg every 50-70 hours.

Recommendations for patients on chronic, intermittent haemodialysis:

• 250 mg at the start of haemodialysis
• 250 mg 6 to 12 hours after the start
• 250 mg 36 to 48 hours after the start
• 250 mg at the start of the next haemodialysis session if more than 30 hours have elapsed since the last dose.

Additional Information for all patients Regardless of patient age or weight, higher doses of up to 1 gm four times daily may be required for infections which are chronic or severe. Treatment should continue for at least 2 to 3 days after symptoms have resolved or bacteria have been eradicated. To reduce the possibility of rheumatic fever or glomerulonephritis resulting from infections with haemolytic streptococci, treatment should be continued for at least 10 days. Throughout treatment of chronic urinary tract infections and for several months thereafter, regular bacteriological and clinical monitoring is required.

Doses below those recommended above should not be prescribed. Paediatric dosages should not exceed those specified for adults, regardless of severity of infection. It may be necessary to continue Cephradine therapy for several weeks in persistent infections. Patients may be transferred from intramuscular/intravenous Cephradine therapy to oral treatment at the same dosage level.

The symptoms of Sefrad overdose are non-specific and are generally nausea, vomiting, diarrhoea and gastric upsets. Treatment is mainly supportive although gastric lavage will be necessary if a large amount has been ingested.

Cephradine Suspension should be freshly prepared. Reconstituted Suspension should be used within 7 days if kept at room temperature or within 14 days, if kept in a refrigerator. Cephradine Injection solutions should be used within 2 hours when kept at room temperature. When stored at 5°C, solutions retain potency for 12 hours. Reconstituted solutions may vary in colour from light to straw yellow; however, this does not affect the potency. Do not use later than the date of expiry. Keep all medicines out of the reach of children. To be dispensed only on the prescription of a registered physician

First generation Cephalosporins

Cephradine is a semisynthetic broad spectrum bactericidal antibiotic, it is active against infections caused by both gram-positive and gram-negative microorganisms. Both penicillinase producing and nonproducing staphylococci are sensitive to Cephradine. The main site of action of Cephradine is the cell wall of bacteria. Cell wall of sensitive organism contains peptidoglycan. Cephradine inhibits cross-linking process and as a result cell wall with many pores are formed, thus lysis of bacteria occur due to external osmotic pressure.

For oral administration-
Adults:

• Urinary tract infections: 500mg four times daily or 1g twice daily. Infections which are severe or chronic may necessitate the administration of higher doses. Where complications arise including prostatitis and epididymitis continued intensive treatment is required.
• Respiratory tract infections: 250 to 500mg four times daily or 500mg to 1g twice daily, dependent on the site and severity of the infection.
• Skin and soft tissue infections: 250 to 500mg four times daily or 500mg to 1g twice daily, again dependent on the site and severity of the infection.

Children:

• Total daily dose of 25 to 50mg/kg given in two or four equally divided doses.
• Otitis media: Total daily dose of 75 to 100mg/kg given in divided doses 6 to 12 hourly.
• Maximum daily dosage: 4 gm

Elderly: The normal adult dose is appropriate. Patients with impaired renal or hepatic function should be monitored during treatment.

For injectable administration-

• Adult: The usual dose is 2-4 gm daily in four equally divided doses up to 8 gm daily. For prophylaxis a single preoperative dose of 1-2 gm intramuscularly or intravenously is given.
• Children: The dose is 50-100 mg/kg daily in four equally divided doses, up to 300 mg/kg daily in severe infection.

Limited essentially to gastro-intestinal disturbances and on occasions to hypersensitivity phenomena. The latter are more likely to occur in individuals, who have previously demonstrated hypersensitivity and thos with a history of allergy, asthma, hay fever or urticaria. Skin reactions have occasionally been reported. Rare- Glossitis, heartburn, dizziness, tightness in the chest, nausea, vomiting, diarrhoea, abdominal pain, vaginitis, candida overgrowth. Skin and hypersensitivity reactions include urticaria, skin rashes, joint pains, oedema.

• Blood and lymphatic system disorders- Unknown: blood disorders (including thrombocytopenia, leucopenia, agranulocytosis, aplastic anaemia and haemolytic anaemia)
• Immune system disorders- Unknown: Fever, serum sickness like reactions, anaphylaxis
• Psychiatric disorders- Unknown: Confusion, sleep disturbances
• Nervous system disorders- Unknown: hyperactivity, hypertonia, dizziness, nervousness; Rarely: Headache
• Hepatobiliary disorders- Frequency unknown: Liver, enzyme disturbances, transient hepatitis, cholestatic jaundice
• Renal and urinary disorders- Unknown: Reversible interstitial nephritis
• Investigations- Unknown: Elevation of blood urea nitrogen, serum creatinine, alanine aminotransferase, aspartate aminotransferase, total bilirubin, alkaline phosphatase.

Cephradine should not be used in patients with known or suspected hypersensitivity to cephalosporins.

The concomitant use of nephrotoxic drugs such as aminoglycosides with Cefradine may increase the risk of kidney damage. Diuretics (e.g. frusemide, ethacrynic acid) and probenecid enhanced the possibility of renal toxicity.

Although animal studies have not demonstrated any teratogenicity, safety in pregnancy has not been established. Cephradine is excreted in breast milk and should be used with caution in lactating mothers. Since the medicine may cause dizziness, patients should be cautioned about operating hazardous machinery, including automobiles.

Renal Impairment: The following doses are recommended (based on 500 mg every 6 hours) for patients not on haemodialysis:

• CrCl: >20 ml/min: 500 mg every 6 hours
• CrCl: 5-20 ml/min: 250 mg every 6 hours
• CrCl: <5 ml/min: 250 mg every 50-70 hours.

Recommendations for patients on chronic, intermittent haemodialysis:

• 250 mg at the start of haemodialysis
• 250 mg 6 to 12 hours after the start
• 250 mg 36 to 48 hours after the start
• 250 mg at the start of the next haemodialysis session if more than 30 hours have elapsed since the last dose.

Additional Information for all patients Regardless of patient age or weight, higher doses of up to 1 gm four times daily may be required for infections which are chronic or severe. Treatment should continue for at least 2 to 3 days after symptoms have resolved or bacteria have been eradicated. To reduce the possibility of rheumatic fever or glomerulonephritis resulting from infections with haemolytic streptococci, treatment should be continued for at least 10 days. Throughout treatment of chronic urinary tract infections and for several months thereafter, regular bacteriological and clinical monitoring is required.

Doses below those recommended above should not be prescribed. Paediatric dosages should not exceed those specified for adults, regardless of severity of infection. It may be necessary to continue Cephradine therapy for several weeks in persistent infections. Patients may be transferred from intramuscular/intravenous Cephradine therapy to oral treatment at the same dosage level.

The symptoms of Sefrad overdose are non-specific and are generally nausea, vomiting, diarrhoea and gastric upsets. Treatment is mainly supportive although gastric lavage will be necessary if a large amount has been ingested.

Cephradine Suspension should be freshly prepared. Reconstituted Suspension should be used within 7 days if kept at room temperature or within 14 days, if kept in a refrigerator. Cephradine Injection solutions should be used within 2 hours when kept at room temperature. When stored at 5°C, solutions retain potency for 12 hours. Reconstituted solutions may vary in colour from light to straw yellow; however, this does not affect the potency. Do not use later than the date of expiry. Keep all medicines out of the reach of children. To be dispensed only on the prescription of a registered physician

First generation Cephalosporins

Cephradine is a semisynthetic broad spectrum bactericidal antibiotic, it is active against infections caused by both gram-positive and gram-negative microorganisms. Both penicillinase producing and nonproducing staphylococci are sensitive to Cephradine. The main site of action of Cephradine is the cell wall of bacteria. Cell wall of sensitive organism contains peptidoglycan. Cephradine inhibits cross-linking process and as a result cell wall with many pores are formed, thus lysis of bacteria occur due to external osmotic pressure.

For oral administration-
Adults:

• Urinary tract infections: 500mg four times daily or 1g twice daily. Infections which are severe or chronic may necessitate the administration of higher doses. Where complications arise including prostatitis and epididymitis continued intensive treatment is required.
• Respiratory tract infections: 250 to 500mg four times daily or 500mg to 1g twice daily, dependent on the site and severity of the infection.
• Skin and soft tissue infections: 250 to 500mg four times daily or 500mg to 1g twice daily, again dependent on the site and severity of the infection.

Children:

• Total daily dose of 25 to 50mg/kg given in two or four equally divided doses.
• Otitis media: Total daily dose of 75 to 100mg/kg given in divided doses 6 to 12 hourly.
• Maximum daily dosage: 4 gm

Elderly: The normal adult dose is appropriate. Patients with impaired renal or hepatic function should be monitored during treatment.

For injectable administration-

• Adult: The usual dose is 2-4 gm daily in four equally divided doses up to 8 gm daily. For prophylaxis a single preoperative dose of 1-2 gm intramuscularly or intravenously is given.
• Children: The dose is 50-100 mg/kg daily in four equally divided doses, up to 300 mg/kg daily in severe infection.

Limited essentially to gastro-intestinal disturbances and on occasions to hypersensitivity phenomena. The latter are more likely to occur in individuals, who have previously demonstrated hypersensitivity and thos with a history of allergy, asthma, hay fever or urticaria. Skin reactions have occasionally been reported. Rare- Glossitis, heartburn, dizziness, tightness in the chest, nausea, vomiting, diarrhoea, abdominal pain, vaginitis, candida overgrowth. Skin and hypersensitivity reactions include urticaria, skin rashes, joint pains, oedema.

• Blood and lymphatic system disorders- Unknown: blood disorders (including thrombocytopenia, leucopenia, agranulocytosis, aplastic anaemia and haemolytic anaemia)
• Immune system disorders- Unknown: Fever, serum sickness like reactions, anaphylaxis
• Psychiatric disorders- Unknown: Confusion, sleep disturbances
• Nervous system disorders- Unknown: hyperactivity, hypertonia, dizziness, nervousness; Rarely: Headache
• Hepatobiliary disorders- Frequency unknown: Liver, enzyme disturbances, transient hepatitis, cholestatic jaundice
• Renal and urinary disorders- Unknown: Reversible interstitial nephritis
• Investigations- Unknown: Elevation of blood urea nitrogen, serum creatinine, alanine aminotransferase, aspartate aminotransferase, total bilirubin, alkaline phosphatase.

Cephradine should not be used in patients with known or suspected hypersensitivity to cephalosporins.

The concomitant use of nephrotoxic drugs such as aminoglycosides with Cefradine may increase the risk of kidney damage. Diuretics (e.g. frusemide, ethacrynic acid) and probenecid enhanced the possibility of renal toxicity.

Although animal studies have not demonstrated any teratogenicity, safety in pregnancy has not been established. Cephradine is excreted in breast milk and should be used with caution in lactating mothers. Since the medicine may cause dizziness, patients should be cautioned about operating hazardous machinery, including automobiles.

Renal Impairment: The following doses are recommended (based on 500 mg every 6 hours) for patients not on haemodialysis:

• CrCl: >20 ml/min: 500 mg every 6 hours
• CrCl: 5-20 ml/min: 250 mg every 6 hours
• CrCl: <5 ml/min: 250 mg every 50-70 hours.

Recommendations for patients on chronic, intermittent haemodialysis:

• 250 mg at the start of haemodialysis
• 250 mg 6 to 12 hours after the start
• 250 mg 36 to 48 hours after the start
• 250 mg at the start of the next haemodialysis session if more than 30 hours have elapsed since the last dose.

Additional Information for all patients Regardless of patient age or weight, higher doses of up to 1 gm four times daily may be required for infections which are chronic or severe. Treatment should continue for at least 2 to 3 days after symptoms have resolved or bacteria have been eradicated. To reduce the possibility of rheumatic fever or glomerulonephritis resulting from infections with haemolytic streptococci, treatment should be continued for at least 10 days. Throughout treatment of chronic urinary tract infections and for several months thereafter, regular bacteriological and clinical monitoring is required.

Doses below those recommended above should not be prescribed. Paediatric dosages should not exceed those specified for adults, regardless of severity of infection. It may be necessary to continue Cephradine therapy for several weeks in persistent infections. Patients may be transferred from intramuscular/intravenous Cephradine therapy to oral treatment at the same dosage level.

The symptoms of Sefrad overdose are non-specific and are generally nausea, vomiting, diarrhoea and gastric upsets. Treatment is mainly supportive although gastric lavage will be necessary if a large amount has been ingested.

Cephradine Suspension should be freshly prepared. Reconstituted Suspension should be used within 7 days if kept at room temperature or within 14 days, if kept in a refrigerator. Cephradine Injection solutions should be used within 2 hours when kept at room temperature. When stored at 5°C, solutions retain potency for 12 hours. Reconstituted solutions may vary in colour from light to straw yellow; however, this does not affect the potency. Do not use later than the date of expiry. Keep all medicines out of the reach of children. To be dispensed only on the prescription of a registered physician

First generation Cephalosporins

Cephradine is a semisynthetic broad spectrum bactericidal antibiotic, it is active against infections caused by both gram-positive and gram-negative microorganisms. Both penicillinase producing and nonproducing staphylococci are sensitive to Cephradine. The main site of action of Cephradine is the cell wall of bacteria. Cell wall of sensitive organism contains peptidoglycan. Cephradine inhibits cross-linking process and as a result cell wall with many pores are formed, thus lysis of bacteria occur due to external osmotic pressure.

For oral administration-
Adults:

• Urinary tract infections: 500mg four times daily or 1g twice daily. Infections which are severe or chronic may necessitate the administration of higher doses. Where complications arise including prostatitis and epididymitis continued intensive treatment is required.
• Respiratory tract infections: 250 to 500mg four times daily or 500mg to 1g twice daily, dependent on the site and severity of the infection.
• Skin and soft tissue infections: 250 to 500mg four times daily or 500mg to 1g twice daily, again dependent on the site and severity of the infection.

Children:

• Total daily dose of 25 to 50mg/kg given in two or four equally divided doses.
• Otitis media: Total daily dose of 75 to 100mg/kg given in divided doses 6 to 12 hourly.
• Maximum daily dosage: 4 gm

Elderly: The normal adult dose is appropriate. Patients with impaired renal or hepatic function should be monitored during treatment.

For injectable administration-

• Adult: The usual dose is 2-4 gm daily in four equally divided doses up to 8 gm daily. For prophylaxis a single preoperative dose of 1-2 gm intramuscularly or intravenously is given.
• Children: The dose is 50-100 mg/kg daily in four equally divided doses, up to 300 mg/kg daily in severe infection.

Limited essentially to gastro-intestinal disturbances and on occasions to hypersensitivity phenomena. The latter are more likely to occur in individuals, who have previously demonstrated hypersensitivity and thos with a history of allergy, asthma, hay fever or urticaria. Skin reactions have occasionally been reported. Rare- Glossitis, heartburn, dizziness, tightness in the chest, nausea, vomiting, diarrhoea, abdominal pain, vaginitis, candida overgrowth. Skin and hypersensitivity reactions include urticaria, skin rashes, joint pains, oedema.

• Blood and lymphatic system disorders- Unknown: blood disorders (including thrombocytopenia, leucopenia, agranulocytosis, aplastic anaemia and haemolytic anaemia)
• Immune system disorders- Unknown: Fever, serum sickness like reactions, anaphylaxis
• Psychiatric disorders- Unknown: Confusion, sleep disturbances
• Nervous system disorders- Unknown: hyperactivity, hypertonia, dizziness, nervousness; Rarely: Headache
• Hepatobiliary disorders- Frequency unknown: Liver, enzyme disturbances, transient hepatitis, cholestatic jaundice
• Renal and urinary disorders- Unknown: Reversible interstitial nephritis
• Investigations- Unknown: Elevation of blood urea nitrogen, serum creatinine, alanine aminotransferase, aspartate aminotransferase, total bilirubin, alkaline phosphatase.

Cephradine should not be used in patients with known or suspected hypersensitivity to cephalosporins.

The concomitant use of nephrotoxic drugs such as aminoglycosides with Cefradine may increase the risk of kidney damage. Diuretics (e.g. frusemide, ethacrynic acid) and probenecid enhanced the possibility of renal toxicity.

Although animal studies have not demonstrated any teratogenicity, safety in pregnancy has not been established. Cephradine is excreted in breast milk and should be used with caution in lactating mothers. Since the medicine may cause dizziness, patients should be cautioned about operating hazardous machinery, including automobiles.

Renal Impairment: The following doses are recommended (based on 500 mg every 6 hours) for patients not on haemodialysis:

• CrCl: >20 ml/min: 500 mg every 6 hours
• CrCl: 5-20 ml/min: 250 mg every 6 hours
• CrCl: <5 ml/min: 250 mg every 50-70 hours.

Recommendations for patients on chronic, intermittent haemodialysis:

• 250 mg at the start of haemodialysis
• 250 mg 6 to 12 hours after the start
• 250 mg 36 to 48 hours after the start
• 250 mg at the start of the next haemodialysis session if more than 30 hours have elapsed since the last dose.

Additional Information for all patients Regardless of patient age or weight, higher doses of up to 1 gm four times daily may be required for infections which are chronic or severe. Treatment should continue for at least 2 to 3 days after symptoms have resolved or bacteria have been eradicated. To reduce the possibility of rheumatic fever or glomerulonephritis resulting from infections with haemolytic streptococci, treatment should be continued for at least 10 days. Throughout treatment of chronic urinary tract infections and for several months thereafter, regular bacteriological and clinical monitoring is required.

Doses below those recommended above should not be prescribed. Paediatric dosages should not exceed those specified for adults, regardless of severity of infection. It may be necessary to continue Cephradine therapy for several weeks in persistent infections. Patients may be transferred from intramuscular/intravenous Cephradine therapy to oral treatment at the same dosage level.

The symptoms of Sefrad overdose are non-specific and are generally nausea, vomiting, diarrhoea and gastric upsets. Treatment is mainly supportive although gastric lavage will be necessary if a large amount has been ingested.

Cephradine Suspension should be freshly prepared. Reconstituted Suspension should be used within 7 days if kept at room temperature or within 14 days, if kept in a refrigerator. Cephradine Injection solutions should be used within 2 hours when kept at room temperature. When stored at 5°C, solutions retain potency for 12 hours. Reconstituted solutions may vary in colour from light to straw yellow; however, this does not affect the potency. Do not use later than the date of expiry. Keep all medicines out of the reach of children. To be dispensed only on the prescription of a registered physician

Meniere's disease and Meniere-like syndromes are characterized by attacks of vertigo, tinnitus and/or progressive loss of hearing, usually accompanied by nausea and vomiting.

Drugs used in meniere's diseases

The mechanism of action of betahistine is multifactorial. Meniere's disease is thought to result from a disruption of endolymphatic fluid homeostasis in the ear. Betahistine mainly acts as a histamine H1-receptor agonist. The stimulation of H1-receptors in the inner ear causes a vasodilatory effect leading to increased permeability of blood vessels and a reduction in endolymphatic pressure; this action prevents the rupture of the labyrinth, which can contribute to the hearing loss associated with Ménière's disease. Betahistine is also purported to act by reducing the asymmetrical functioning of sensory vestibular organs and increasing vestibulocochlear blood flow, relieving symptoms of vertigo.

In addition to the above mechanisms, betahistine also acts as a histamine H3-receptor antagonist, increasing the turnover of histamine from postsynaptic histaminergic nerve receptors, subsequently leading to an increase in H1-agonist activity. H3-receptor antagonism elevates levels of neurotransmitters including serotonin in the brainstem, inhibiting the activity of vestibular nuclei, thus restoring proper balance and decreasing vertigo symptoms.

The usual initial dose: 8 mg to 16 mg three times daily taken preferably with meals.

Maintenance dose: Up to 48 mg daily has been recommended. Betahistine is not recommended for use in children.

Betahistine is generally well tolerated and there is no known serious adverse effects. In some circumstances gastrointestinal disturbances, headache, rashes and pruritus have been reported.

Betahistine is contraindicated in pheochromocytoma.

Caution should be exercised in patients with bronchial asthma and peptic ulceration.

There are no proven cases of hazardous interactions. Though an antagonism between Betahistine and antihistamines could be expected on a theoretical basis, no such interactions have been reported.

In Pregnancy: The safety of Betahistine in human pregnancy has not been completely established, although there is no known teratogenic effect in animals. A careful assessment of potential benefits should be made before prescribing Betahistine in pregnancy.

In Lactation: Betahistine is excreted in the breast milk of nursing mothers in concentrations similar to those found in plasma. Toxicity to the neonate at these concentrations is not known.

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

Meniere's disease and Meniere-like syndromes are characterized by attacks of vertigo, tinnitus and/or progressive loss of hearing, usually accompanied by nausea and vomiting.

Drugs used in meniere's diseases

The mechanism of action of betahistine is multifactorial. Meniere's disease is thought to result from a disruption of endolymphatic fluid homeostasis in the ear. Betahistine mainly acts as a histamine H1-receptor agonist. The stimulation of H1-receptors in the inner ear causes a vasodilatory effect leading to increased permeability of blood vessels and a reduction in endolymphatic pressure; this action prevents the rupture of the labyrinth, which can contribute to the hearing loss associated with Ménière's disease. Betahistine is also purported to act by reducing the asymmetrical functioning of sensory vestibular organs and increasing vestibulocochlear blood flow, relieving symptoms of vertigo.

In addition to the above mechanisms, betahistine also acts as a histamine H3-receptor antagonist, increasing the turnover of histamine from postsynaptic histaminergic nerve receptors, subsequently leading to an increase in H1-agonist activity. H3-receptor antagonism elevates levels of neurotransmitters including serotonin in the brainstem, inhibiting the activity of vestibular nuclei, thus restoring proper balance and decreasing vertigo symptoms.

The usual initial dose: 8 mg to 16 mg three times daily taken preferably with meals.

Maintenance dose: Up to 48 mg daily has been recommended. Betahistine is not recommended for use in children.

Betahistine is generally well tolerated and there is no known serious adverse effects. In some circumstances gastrointestinal disturbances, headache, rashes and pruritus have been reported.

Betahistine is contraindicated in pheochromocytoma.

Caution should be exercised in patients with bronchial asthma and peptic ulceration.

There are no proven cases of hazardous interactions. Though an antagonism between Betahistine and antihistamines could be expected on a theoretical basis, no such interactions have been reported.

In Pregnancy: The safety of Betahistine in human pregnancy has not been completely established, although there is no known teratogenic effect in animals. A careful assessment of potential benefits should be made before prescribing Betahistine in pregnancy.

In Lactation: Betahistine is excreted in the breast milk of nursing mothers in concentrations similar to those found in plasma. Toxicity to the neonate at these concentrations is not known.

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

Alpha adrenoceptor blocking drugs, Beta-adrenoceptor blocking drugs, Beta-blockers

Carvedilol is a cardiovascular drug whose main pharmacological action is non-selective antagonism of β-adrenergic receptors but which also possesses appreciable a-adrenergic antagonistic activity. It also has antiproliferative properties and is a scavenger of reactive free oxidant radicals. It is used in the treatment of hypertension, angina pectoris and congestive heart failure.

In hypertension: initially, 12.5 mg once daily, increased after 2 days to the usual dose of 25 mg once daily; if necessary the dose may be further increased at intervals of at least 2 weeks to maximum 50 mg daily in single or divided doses. In elderly patients, the initial dose of 12.5 mg daily may provide satisfactory control.

In angina pectoris: the recommended dose for initiation of therapy is 12.5 mg twice daily for the first 2 days. Thereafter, the recommended dosage is 25 mg twice daily. For elderly patients, the maximum daily dose is 50 mg daily in divided doses.

In heart failure: initially, 3.125 mg twice daily (with food) may be given, the dose may be increased at intervals of at least 2 weeks to 6.25 mg twice daily, then to 12.5 mg twice daily, then to 25 mg twice daily. The dose may be increased to the highest dose tolerated, maximum 25 mg twice daily in patients less than 85 kg body-weight and 50 mg twice daily in patients over 85 kg.

Postural hypotension, dizziness, headache, fatigue, gastro-intestinal disturbances, bradycardia; occasionally diminished peripheral circulation, peripheral oedema and painful extremities, dry mouth, dry eyes, eye irritation or disturbed vision, impotence, disturbances of micturition, influenza-like symptoms, rarely angina, AV block, exacerbation of intermittent claudication or Raynaud's phenomenon, allergic skin reactions, exacerbation of psoriasis, nasal stuffiness, wheezing, depressed mood, sleep disturbances, paresthesia, heart failure, changes in liver enzymes, thrombocytopenia, leukopenia are also reported.

Carvedilol is contraindicated in patients with decompensated heart failure requiring intravenous inotropic therapy, bronchial asthma or related bronchospastic conditions, second or third-degree AV block, sick sinus syndrome (unless a permanent pacemaker is in place), cardiogenic shock or severe bradycardia.

Take caution in hepatic impairment and in heart failure monitor clinical status for 2-3 hours after initiation and after increasing each dose. Before increasing dose ensure that the renal function and heart failure are not deteriorating

Digoxin: In normal healthy volunteers a single dose of carvedilol taken together with a single dose of digoxin resulted in significantly increased levels of digoxin 24 hours later. Patients with congestive heart failure stabilized on digoxin have been given carvedilol concomitantly without any adverse effects. Increased monitoring of digoxin is recommended when initiating, adjusting, or discontinuing the dose of carvedilol.

Rifampin: Pretreatment with rifampin resulted in a 60% decrease in Cmax and AUC.

Warfarin: Carvedilol did not alter the in vitro plasma protein binding of warfarin.

Clonidine: β-receptor antagonists potentiate the pressor reaction which may follow the sudden withdrawal of treatment with clonidine although, in theory, the a-blocking action of carvedilol should modify the pressure rise.

Carvedilol should not be used during breast-feeding, since no studies have been performed in lactating women and animal studies have shown that carvedilol is excreted in breast milk. Safety and efficacy in children have not been established with carvedilol. Carvedilol should not be used during pregnancy as no studies have been performed in this group. Animal studies have shown that carvedilol crosses the placental barrier. No information is available on the safety and efficacy of Carvedilol use in neonates.

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

Alpha adrenoceptor blocking drugs, Beta-adrenoceptor blocking drugs, Beta-blockers

Carvedilol is a cardiovascular drug whose main pharmacological action is non-selective antagonism of β-adrenergic receptors but which also possesses appreciable a-adrenergic antagonistic activity. It also has antiproliferative properties and is a scavenger of reactive free oxidant radicals. It is used in the treatment of hypertension, angina pectoris and congestive heart failure.

In hypertension: initially, 12.5 mg once daily, increased after 2 days to the usual dose of 25 mg once daily; if necessary the dose may be further increased at intervals of at least 2 weeks to maximum 50 mg daily in single or divided doses. In elderly patients, the initial dose of 12.5 mg daily may provide satisfactory control.

In angina pectoris: the recommended dose for initiation of therapy is 12.5 mg twice daily for the first 2 days. Thereafter, the recommended dosage is 25 mg twice daily. For elderly patients, the maximum daily dose is 50 mg daily in divided doses.

In heart failure: initially, 3.125 mg twice daily (with food) may be given, the dose may be increased at intervals of at least 2 weeks to 6.25 mg twice daily, then to 12.5 mg twice daily, then to 25 mg twice daily. The dose may be increased to the highest dose tolerated, maximum 25 mg twice daily in patients less than 85 kg body-weight and 50 mg twice daily in patients over 85 kg.

Postural hypotension, dizziness, headache, fatigue, gastro-intestinal disturbances, bradycardia; occasionally diminished peripheral circulation, peripheral oedema and painful extremities, dry mouth, dry eyes, eye irritation or disturbed vision, impotence, disturbances of micturition, influenza-like symptoms, rarely angina, AV block, exacerbation of intermittent claudication or Raynaud's phenomenon, allergic skin reactions, exacerbation of psoriasis, nasal stuffiness, wheezing, depressed mood, sleep disturbances, paresthesia, heart failure, changes in liver enzymes, thrombocytopenia, leukopenia are also reported.

Carvedilol is contraindicated in patients with decompensated heart failure requiring intravenous inotropic therapy, bronchial asthma or related bronchospastic conditions, second or third-degree AV block, sick sinus syndrome (unless a permanent pacemaker is in place), cardiogenic shock or severe bradycardia.

Take caution in hepatic impairment and in heart failure monitor clinical status for 2-3 hours after initiation and after increasing each dose. Before increasing dose ensure that the renal function and heart failure are not deteriorating

Digoxin: In normal healthy volunteers a single dose of carvedilol taken together with a single dose of digoxin resulted in significantly increased levels of digoxin 24 hours later. Patients with congestive heart failure stabilized on digoxin have been given carvedilol concomitantly without any adverse effects. Increased monitoring of digoxin is recommended when initiating, adjusting, or discontinuing the dose of carvedilol.

Rifampin: Pretreatment with rifampin resulted in a 60% decrease in Cmax and AUC.

Warfarin: Carvedilol did not alter the in vitro plasma protein binding of warfarin.

Clonidine: β-receptor antagonists potentiate the pressor reaction which may follow the sudden withdrawal of treatment with clonidine although, in theory, the a-blocking action of carvedilol should modify the pressure rise.

Carvedilol should not be used during breast-feeding, since no studies have been performed in lactating women and animal studies have shown that carvedilol is excreted in breast milk. Safety and efficacy in children have not been established with carvedilol. Carvedilol should not be used during pregnancy as no studies have been performed in this group. Animal studies have shown that carvedilol crosses the placental barrier. No information is available on the safety and efficacy of Carvedilol use in neonates.

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

Alpha adrenoceptor blocking drugs, Beta-adrenoceptor blocking drugs, Beta-blockers

Carvedilol is a cardiovascular drug whose main pharmacological action is non-selective antagonism of β-adrenergic receptors but which also possesses appreciable a-adrenergic antagonistic activity. It also has antiproliferative properties and is a scavenger of reactive free oxidant radicals. It is used in the treatment of hypertension, angina pectoris and congestive heart failure.

In hypertension: initially, 12.5 mg once daily, increased after 2 days to the usual dose of 25 mg once daily; if necessary the dose may be further increased at intervals of at least 2 weeks to maximum 50 mg daily in single or divided doses. In elderly patients, the initial dose of 12.5 mg daily may provide satisfactory control.

In angina pectoris: the recommended dose for initiation of therapy is 12.5 mg twice daily for the first 2 days. Thereafter, the recommended dosage is 25 mg twice daily. For elderly patients, the maximum daily dose is 50 mg daily in divided doses.

In heart failure: initially, 3.125 mg twice daily (with food) may be given, the dose may be increased at intervals of at least 2 weeks to 6.25 mg twice daily, then to 12.5 mg twice daily, then to 25 mg twice daily. The dose may be increased to the highest dose tolerated, maximum 25 mg twice daily in patients less than 85 kg body-weight and 50 mg twice daily in patients over 85 kg.

Postural hypotension, dizziness, headache, fatigue, gastro-intestinal disturbances, bradycardia; occasionally diminished peripheral circulation, peripheral oedema and painful extremities, dry mouth, dry eyes, eye irritation or disturbed vision, impotence, disturbances of micturition, influenza-like symptoms, rarely angina, AV block, exacerbation of intermittent claudication or Raynaud's phenomenon, allergic skin reactions, exacerbation of psoriasis, nasal stuffiness, wheezing, depressed mood, sleep disturbances, paresthesia, heart failure, changes in liver enzymes, thrombocytopenia, leukopenia are also reported.

Carvedilol is contraindicated in patients with decompensated heart failure requiring intravenous inotropic therapy, bronchial asthma or related bronchospastic conditions, second or third-degree AV block, sick sinus syndrome (unless a permanent pacemaker is in place), cardiogenic shock or severe bradycardia.

Take caution in hepatic impairment and in heart failure monitor clinical status for 2-3 hours after initiation and after increasing each dose. Before increasing dose ensure that the renal function and heart failure are not deteriorating

Digoxin: In normal healthy volunteers a single dose of carvedilol taken together with a single dose of digoxin resulted in significantly increased levels of digoxin 24 hours later. Patients with congestive heart failure stabilized on digoxin have been given carvedilol concomitantly without any adverse effects. Increased monitoring of digoxin is recommended when initiating, adjusting, or discontinuing the dose of carvedilol.

Rifampin: Pretreatment with rifampin resulted in a 60% decrease in Cmax and AUC.

Warfarin: Carvedilol did not alter the in vitro plasma protein binding of warfarin.

Clonidine: β-receptor antagonists potentiate the pressor reaction which may follow the sudden withdrawal of treatment with clonidine although, in theory, the a-blocking action of carvedilol should modify the pressure rise.

Carvedilol should not be used during breast-feeding, since no studies have been performed in lactating women and animal studies have shown that carvedilol is excreted in breast milk. Safety and efficacy in children have not been established with carvedilol. Carvedilol should not be used during pregnancy as no studies have been performed in this group. Animal studies have shown that carvedilol crosses the placental barrier. No information is available on the safety and efficacy of Carvedilol use in neonates.

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

Vitamin-C Preparations

vitamin C, the water-soluble vitamin, is readily absorbed from the gastrointestinal tract and is widely distributed in the body tissues. It is believed to be involved in biological oxidations and reductions used in cellular respiration. It is essential for the synthesis of collagen and intracellular material. Vitamin C deficiency develops when the dietary intake is inadequate and when increased demand is not fulfilled. Deficiency leads to the development of well defined syndrome known as scurvy, which is characterized by capillary fragility, bleeding (especially from small blood vessels and the gums), anaemia, cartilage and bone lesions and slow healing of wounds.

Oral administration-

• For the prevention of scurvy: 1 tablet daily
• For the treatment of scurvy: 1-2 tablets daily; but dose may be increased depending on the severity of the condition.
• For the reduction of risk of stroke in the elderly: 1-2 tablets daily.
• In other cases: 1 tablet daily or as directed by the physician.
• Maximum safe dose is 2000 mg daily in divided doses.

Parenteral administration-

• Vitamin C is usually administered orally. When oral administration is not feasible or when malabsorption is suspected, the drug may be administered IM, IV, or subcutaneously. When given parenterally, utilization of the vitamin reportedly is best after IM administration and that is the preferred parenteral route.
• For intravenous injection, dilution into a large volume parenteral such as Normal Saline, Water for Injection, or Glucose is recommended to minimize the adverse reactions associated with intravenous injection.
• The average protective dose of vitamin C for adults is 70 to 150 mg daily. In the presence of scurvy, doses of 300 mg to 1 g daily are recommended. However, as much as 6 g has been administered parenterally to normal adults without evidence of toxicity.
• To enhance wound healing, doses of 300 to 500 mg daily for a week or ten days both preoperatively and postoperatively are generally considered adequate, although considerably larger amounts have been recommended. In the treatment of burns, doses are governed by the extent of tissue injury. For severe burns, daily doses of 1 to 2 g are recommended. In other conditions in which the need for vitamin C is increased, three to five times the daily optimum allowances appear to be adequate.
• Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever the solution and container permit.

Vitamin C has little toxicity and only mega-doses of vitamin C may cause diarrhoea, abdominal bloating, iron over-absorption that is harmful in patients with thalassaemia, sideroblastic anemia, and haemochromatosis; hyperoxaluria, hyperuricosuria, and hemolysis in patients with glucose-6 phosphate dehydrogenase deficiency. A pregnant woman taking more than 5 gm/day may suffer fetal abortion.

Ingestion of megadose (more than 1000 mg daily) of vitamin C during pregnancy has resulted in scurvy in neonates. Vitamin C in mega-doses has been contraindicated for patients with hyperoxaluria. Vitamin C itself is a reactive substance in the redox system and can give rise to false positive reactions in certain analytical tests for glucose, uric acid, creatine and occult blood.

Potentially hazardous interactions: Ascorbic acid is incompatible in solution with aminophylline, bleomycin, erythromycin, lactobionate, nafcillin, nitrofurantoin sodium, conjugated oestrogen, sodium bicarbonate, sulphafurazole diethanolamine, chloramphenicol sodium succinate, chlorthiazide sodium and hydrocortisone sodium succinate.

Useful interactions: Ascorbic acid increases the apparent half-life of paracetamol and enhances iron absorption from the gastrointestinal tract.

The drug is safe in normal doses in pregnant women, but a daily intake of 5 gm or more is reported to have caused abortion. The drug may be taken safely during lactation.

Should be stored in a dry place below 30˚C.

Other Antifungal preparations

Voriconazole is a triazole antifungal medication used to treat serious fungal infections. Voriconazole binds and inhibits ergosterol synthesis by inhibiting CYP450-dependent 14-alpha sterol demethylase. The inhibition of 14-alpha sterol demethylase results in a depletion of ergosterol in fungal cell membrane.

Oral-
Voriconazole tablet and powder for suspension are to be taken at least one hour before or one hour following a meal

• At or over 40 kg body weight: Loading dose regimen is 400 mg or 10 ml every 12 hours (for the first 24 hours) and maintenance dose (after first 24 hours) is 200 mg or 5 ml twice daily.
• Below 40 Kg body weight: Loading dose regimen is 200 mg or 5 ml every 12 hours (for the first 24 hours) and maintenance dose (after first 24 hours) is 100 mg or 2.5 ml twice daily. Or, as directed by the registered physician.

Injection-
Invasive Aspergillosisd :

• Loading dose: 6 mg/kg 12 hourly for the first 24 hours.
• Maintenance Dose: 4 mg/kg 12 hourly.

Candidemia in nonneutropenic patients and other deep tissue Candida infections:

• Loading dose: 6 mg/kg 12 hourly for the first 24 hours.
• Maintenance Dose: 3-4 mg/kg 12 hourly.

Scedosporiosis and Fusariosis:

• Loading dose: 6 mg/kg 12 hourly for the first 24 hours.
• Maintenance Dose: 4 mg/kg 12 hourly.

The most common side effects are abdominal pain, anemia, blurred vision, headache, chest pain, nausea and diarrhea.

Known hypersensitivity to Voriconazole or any other components of this drug-

• Co-administration with terfenadine, astemizole, cisapride, pimozide or quinidine, sirolimus due to risk of serious adverse reactions
• Co-administration with rifampin, carbamazepine, long-acting barbiturates, efavirenz, ritonavir, rifabutin, ergot alkaloids and St. John's Wort due to risk of loss of efficacy

Long term exposure (treatment or prophylaxis) greater than 180 days requires careful assessment of the benefit-risk balance. Squamous cell carcinoma of the skin (SCC) has been reported in relation with long-term voriconazole treatment.

There are no adequate and well-controlled studies in pregnant woman. It should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

The efficacy to the children under 12 years of age is not established.

There is no data found about overdose of Voriconazole.

Reconstitution Instructions of suspension: Shake the bottle well before adding water to loosen the powder. Add 25 ml of boiled and cooled water to the bottle (5 spoons of a provided spoon). Shake the closed bottle vigorously until powder mixed completely with the water. Store reconstituted suspension between 15°-30° C. Discard suspension 14 days after reconstitution.

Keep out of reach of children. Store in a dry place, below 25°C temperature and protected from light. Store Voriconazole powder for suspension between 2° to 8°C temperature.

Other Antifungal preparations

Voriconazole is a triazole antifungal medication used to treat serious fungal infections. Voriconazole binds and inhibits ergosterol synthesis by inhibiting CYP450-dependent 14-alpha sterol demethylase. The inhibition of 14-alpha sterol demethylase results in a depletion of ergosterol in fungal cell membrane.

Oral-
Voriconazole tablet and powder for suspension are to be taken at least one hour before or one hour following a meal

• At or over 40 kg body weight: Loading dose regimen is 400 mg or 10 ml every 12 hours (for the first 24 hours) and maintenance dose (after first 24 hours) is 200 mg or 5 ml twice daily.
• Below 40 Kg body weight: Loading dose regimen is 200 mg or 5 ml every 12 hours (for the first 24 hours) and maintenance dose (after first 24 hours) is 100 mg or 2.5 ml twice daily. Or, as directed by the registered physician.

Injection-
Invasive Aspergillosisd :

• Loading dose: 6 mg/kg 12 hourly for the first 24 hours.
• Maintenance Dose: 4 mg/kg 12 hourly.

Candidemia in nonneutropenic patients and other deep tissue Candida infections:

• Loading dose: 6 mg/kg 12 hourly for the first 24 hours.
• Maintenance Dose: 3-4 mg/kg 12 hourly.

Scedosporiosis and Fusariosis:

• Loading dose: 6 mg/kg 12 hourly for the first 24 hours.
• Maintenance Dose: 4 mg/kg 12 hourly.

The most common side effects are abdominal pain, anemia, blurred vision, headache, chest pain, nausea and diarrhea.

Known hypersensitivity to Voriconazole or any other components of this drug-

• Co-administration with terfenadine, astemizole, cisapride, pimozide or quinidine, sirolimus due to risk of serious adverse reactions
• Co-administration with rifampin, carbamazepine, long-acting barbiturates, efavirenz, ritonavir, rifabutin, ergot alkaloids and St. John's Wort due to risk of loss of efficacy

Long term exposure (treatment or prophylaxis) greater than 180 days requires careful assessment of the benefit-risk balance. Squamous cell carcinoma of the skin (SCC) has been reported in relation with long-term voriconazole treatment.

There are no adequate and well-controlled studies in pregnant woman. It should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

The efficacy to the children under 12 years of age is not established.

There is no data found about overdose of Voriconazole.

Reconstitution Instructions of suspension: Shake the bottle well before adding water to loosen the powder. Add 25 ml of boiled and cooled water to the bottle (5 spoons of a provided spoon). Shake the closed bottle vigorously until powder mixed completely with the water. Store reconstituted suspension between 15°-30° C. Discard suspension 14 days after reconstitution.

Keep out of reach of children. Store in a dry place, below 25°C temperature and protected from light. Store Voriconazole powder for suspension between 2° to 8°C temperature.

Motility Stimulants, Motility stimulants/Dopamine antagonist, Prokinetic drugs

Domperidone is a dopamine antagonist that principally blocks the dopamine receptors located in the ChemoreceptorTrigger Zone (CTZ) and stomach. Its gastroprokinetic action is based on its blocking effect of dopamine receptors that have an influence on the motility of the gastrointestinal tract. Due to its weak penetration across the blood-brain barrier, Domperidone has almost no effect on the dopaminergic receptors in the brain, therefore, excluding psychotropic and neurologic side effects. Domperidone restores normal motility and tone of the upper gastrointestinal tract, facilitates gastric emptying, enhances antral and duodenal peristalsis and regulates contraction of the pylorus. Domperidone also increases esophageal peristalsis and lower esophageal sphincter pressure, and thus prevents regurgitation of gastric content.

Domperidone should be taken 15-30 minutes before meals and, if necessary, before retiring.

The usual recommended oral dose of Domperidone is as follows:

• Adults: 10-20 mg (1-2 tablet or 10-20 ml suspension), every 6-8 hours daily. The maximum dose of Domperidone is 80 mg daily.
• Children: 2-4 ml suspension/10 kg body weight or 0.4-0.8 ml paediatric drops/10 kg body weight, every 6-8 hours daily.

In dyspeptic symptom:

• Adults: 10-20 mg (1-2 tablet or 10-20 ml suspension), every 6-8 hours daily.
• Children: 0.2-0.4 mg/kg (2-4 ml suspension/10 kg or 0.4-0.8 ml paediatric drops/10 kg) body weight, every 6-8 hours daily.

In acute and sub-acute conditions (mainly in acute nausea and vomiting):

• Adults: 20 mg (2 tablets or 20 ml suspension), every 6-8 hours daily
• Children: 0.2-0.4 mg/kg (2-4 ml suspension/10 kg or 0.4-0.8 ml paediatric drops/10 kg) body weight, every 6-8 hours daily. (In acute nausea and vomiting maximum period of treatment is 12 weeks).

By rectum in suppositories:

• Adults (including elderly): 30-60 mg every 4-8 hours.
• Children: The maximum daily dose rectally in children's is 30 mg for those weighting 10 to 25 kg. The dose may be divided throughout day if necessary.
• The maximum period of treatment is 12 weeks.

Domperidone may produce hyperprolactinemia (1.3%).This may result in galactorrhea, breast enlargement, and soreness and reduced libido. Dry mouth (1%), thirst, headache (1.2%), nervousness, drowsiness (0.4%), diarrhea (0.2%), skin rash and itching (0.1%) may occur during treatment with domperidone. Extra-pyramidal reactions are seen in 0.05% of patients in clinical studies.

Domperidone is contraindicated to patients having known hypersensitivity to this drug and in the case of neonates. Domperidone should not be used whenever gastrointestinal stimulation might be dangerous i.e., gastrointestinal hemorrhage, mechanical obstruction or perforation. Also contraindicated in patients with prolactin releasing pituitary tumor (prolactinoma).

Domperidone should be used with absolute caution in the case of children because there may be an increased risk of extra-pyramidal reactions in young children because of an incompletely developed blood-brain barrier. Since domperidone is highly metabolized in liver, it should be used with caution in patient with hepatic impairment.

Domperidone may reduce the risk of hypoprolactemic effect of bromocriptine. The action of Domperidone on Gl function may be antagonized by antimuscarinics and opoid analgesics. Care should be exercised when domperidone is administered in combination with MAO (monoamine oxidase) inhibitors.

The safety of domperidone has not been proven and it is therefore not recommended during pregnancy. Animal studies have not demonstrated the teratogenic effect in the fetus. Domperidone may precipitate galactorrhea and improve post-natal lactation. It is secreted in breast milk but in very small quantities insufficient to be considered harmful.

There are no reported cases of overdose.

Store below 30°C, Protected from light & moisture. Keep out of children's reach.

Motility Stimulants, Motility stimulants/Dopamine antagonist, Prokinetic drugs

Domperidone is a dopamine antagonist that principally blocks the dopamine receptors located in the ChemoreceptorTrigger Zone (CTZ) and stomach. Its gastroprokinetic action is based on its blocking effect of dopamine receptors that have an influence on the motility of the gastrointestinal tract. Due to its weak penetration across the blood-brain barrier, Domperidone has almost no effect on the dopaminergic receptors in the brain, therefore, excluding psychotropic and neurologic side effects. Domperidone restores normal motility and tone of the upper gastrointestinal tract, facilitates gastric emptying, enhances antral and duodenal peristalsis and regulates contraction of the pylorus. Domperidone also increases esophageal peristalsis and lower esophageal sphincter pressure, and thus prevents regurgitation of gastric content.

Domperidone should be taken 15-30 minutes before meals and, if necessary, before retiring.

The usual recommended oral dose of Domperidone is as follows:

• Adults: 10-20 mg (1-2 tablet or 10-20 ml suspension), every 6-8 hours daily. The maximum dose of Domperidone is 80 mg daily.
• Children: 2-4 ml suspension/10 kg body weight or 0.4-0.8 ml paediatric drops/10 kg body weight, every 6-8 hours daily.

In dyspeptic symptom:

• Adults: 10-20 mg (1-2 tablet or 10-20 ml suspension), every 6-8 hours daily.
• Children: 0.2-0.4 mg/kg (2-4 ml suspension/10 kg or 0.4-0.8 ml paediatric drops/10 kg) body weight, every 6-8 hours daily.

In acute and sub-acute conditions (mainly in acute nausea and vomiting):

• Adults: 20 mg (2 tablets or 20 ml suspension), every 6-8 hours daily
• Children: 0.2-0.4 mg/kg (2-4 ml suspension/10 kg or 0.4-0.8 ml paediatric drops/10 kg) body weight, every 6-8 hours daily. (In acute nausea and vomiting maximum period of treatment is 12 weeks).

By rectum in suppositories:

• Adults (including elderly): 30-60 mg every 4-8 hours.
• Children: The maximum daily dose rectally in children's is 30 mg for those weighting 10 to 25 kg. The dose may be divided throughout day if necessary.
• The maximum period of treatment is 12 weeks.

Domperidone may produce hyperprolactinemia (1.3%).This may result in galactorrhea, breast enlargement, and soreness and reduced libido. Dry mouth (1%), thirst, headache (1.2%), nervousness, drowsiness (0.4%), diarrhea (0.2%), skin rash and itching (0.1%) may occur during treatment with domperidone. Extra-pyramidal reactions are seen in 0.05% of patients in clinical studies.

Domperidone is contraindicated to patients having known hypersensitivity to this drug and in the case of neonates. Domperidone should not be used whenever gastrointestinal stimulation might be dangerous i.e., gastrointestinal hemorrhage, mechanical obstruction or perforation. Also contraindicated in patients with prolactin releasing pituitary tumor (prolactinoma).

Domperidone should be used with absolute caution in the case of children because there may be an increased risk of extra-pyramidal reactions in young children because of an incompletely developed blood-brain barrier. Since domperidone is highly metabolized in liver, it should be used with caution in patient with hepatic impairment.

Domperidone may reduce the risk of hypoprolactemic effect of bromocriptine. The action of Domperidone on Gl function may be antagonized by antimuscarinics and opoid analgesics. Care should be exercised when domperidone is administered in combination with MAO (monoamine oxidase) inhibitors.

The safety of domperidone has not been proven and it is therefore not recommended during pregnancy. Animal studies have not demonstrated the teratogenic effect in the fetus. Domperidone may precipitate galactorrhea and improve post-natal lactation. It is secreted in breast milk but in very small quantities insufficient to be considered harmful.

There are no reported cases of overdose.

Store below 30°C, Protected from light & moisture. Keep out of children's reach.

Sildenafil is indicated for the treatment of erectile dysfunction.

Drugs for Erectile Dysfunction

Sildenafil is a selective inhibitor of cyclic Guanosine Monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5) used for treatment of erectile dysfunction. Danafil (Sildenafil) enhances the effect of nitric oxide (NO) by inhibiting phosphodiesterase type 5 (PDE5), which is responsible for degradation of cGMP in the corpus cavernosum that results in smooth muscle relaxation and inflow of blood to the corpus cavernosum.

The recommended dose of Sildenafil is 50 mg taken approximately 1 hour before sexual activity. However, Sildenafil may be taken anywhere from half an hour to 4 hours before sexual activity. Based on effectiveness and toleration, the dose may be increased to a maximum 100 mg or decreased to 25 mg. The maximum recommended dosing frequency is once per day.

Sildenafil may takes longer time to work if you take it with a heavy meal.

The adverse effects treated with Sildenafil are headache, flushing, dyspepsia, nasal congestion, urinary tract infection, abnormal vision, diarrhea, dizziness and rash.

Sildenafil is contraindicated in patient with hypersensitivity to any component of this medication. Sildenafil potentiates the hypotensive effects of nitrates, so it is contraindicated in patients who are using organic nitrates, either regularly or intermittently.

Caution should be exercised if patients have any allergies to any other medicines or any other substances such as foods, preservatives or dyes, heart or blood vessel problems, sudden loss of eyesight in one or both eyes. Caution should be taken if patients have any of the following medical conditions such as diabetes, kidney or liver problems, leukaemia, multiple myeloma, any disease or deformity of penis, any bleeding disorder such as haemophilia, stomach ulcer, sickle cell anaemia, color vision problems, sudden decrease or loss of hearing or receiving any other treatment for impotence.

Concomitant use of Sildenafil with organic nitrates for angina may cause hypotension. Cimetidine, a medicine used to treat gastric ulcers, some antibiotics including Erythromycin and Rifampicin, some protease inhibitors such as Ritonavir and Saquinavir for the treatment of HIV infection may increase the plasma concentration of Sildenafil. Some medicines used to treat fungal infections including Ketoconazole and Itraconazole may reduce the clearance of Sildenafil.

Pregnancy category B. There are no adequate and well-controlled studies of Sildenafil in pregnant women. Sildenafil is not indicated for use by women. In animal study shows that Sildenafil has no evidence of teratogenicity or embryotoxicity.

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

Sildenafil is indicated for the treatment of erectile dysfunction.

Drugs for Erectile Dysfunction

Sildenafil is a selective inhibitor of cyclic Guanosine Monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5) used for treatment of erectile dysfunction. Danafil (Sildenafil) enhances the effect of nitric oxide (NO) by inhibiting phosphodiesterase type 5 (PDE5), which is responsible for degradation of cGMP in the corpus cavernosum that results in smooth muscle relaxation and inflow of blood to the corpus cavernosum.

The recommended dose of Sildenafil is 50 mg taken approximately 1 hour before sexual activity. However, Sildenafil may be taken anywhere from half an hour to 4 hours before sexual activity. Based on effectiveness and toleration, the dose may be increased to a maximum 100 mg or decreased to 25 mg. The maximum recommended dosing frequency is once per day.

Sildenafil may takes longer time to work if you take it with a heavy meal.

The adverse effects treated with Sildenafil are headache, flushing, dyspepsia, nasal congestion, urinary tract infection, abnormal vision, diarrhea, dizziness and rash.

Sildenafil is contraindicated in patient with hypersensitivity to any component of this medication. Sildenafil potentiates the hypotensive effects of nitrates, so it is contraindicated in patients who are using organic nitrates, either regularly or intermittently.

Caution should be exercised if patients have any allergies to any other medicines or any other substances such as foods, preservatives or dyes, heart or blood vessel problems, sudden loss of eyesight in one or both eyes. Caution should be taken if patients have any of the following medical conditions such as diabetes, kidney or liver problems, leukaemia, multiple myeloma, any disease or deformity of penis, any bleeding disorder such as haemophilia, stomach ulcer, sickle cell anaemia, color vision problems, sudden decrease or loss of hearing or receiving any other treatment for impotence.

Concomitant use of Sildenafil with organic nitrates for angina may cause hypotension. Cimetidine, a medicine used to treat gastric ulcers, some antibiotics including Erythromycin and Rifampicin, some protease inhibitors such as Ritonavir and Saquinavir for the treatment of HIV infection may increase the plasma concentration of Sildenafil. Some medicines used to treat fungal infections including Ketoconazole and Itraconazole may reduce the clearance of Sildenafil.

Pregnancy category B. There are no adequate and well-controlled studies of Sildenafil in pregnant women. Sildenafil is not indicated for use by women. In animal study shows that Sildenafil has no evidence of teratogenicity or embryotoxicity.

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

Herbal and Nutraceuticals, Vitamin-E Preparations

Vitamin E acts as an antioxidant in the body. Vitamin E protects polyunsaturated fatty acids (which are components of cellular membrane) and other oxygen-sensitive substances such as vitamin A & vitamin C from oxidation. In premature neonates irritability, edema, thrombosis and hemolytic anemia may be caused due to vitamin E deficiency. Creatinuria, ceroid deposition, muscle weakness, decreased erythrocyte survival or increased in vitro hemolysis by oxidizing agents have been identified in adults and children with low serum tocopherol concentrations.

Betterment of cardiovascular health: 400 IU-800 IU per day
Deficiency syndrome in adults: 200 IU-400 IU per day
Deficiency syndrome in children: 200 IU per day
Thalassemia: 800 IU per day
Sickle-cell anemia: 400 IU per day
Betterment of skin & hair: 200 IU-400 IU per day (Topical use is also established for beautification)
Chronic cold in adults: 200 IU per day

Overdosage (>1 gm) have been associated with minor side effects, including hypertension, fatigue, diarrhea and myopathy.

No known contraindications found.

It may increase the risk of thrombosis in some patients, such as those taking estrogens.

Vitamin E may impair the absorption of Vitamin A & function of Vitamin K and potentiates the effect of Warfarin.

Vitamin E is safe in pregnancy and lactation, when used as recommended doses. Higher doses are not established.

Vitamin E is safe for children.

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