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Zytec
Cetirizine Hydrochloride
Zytec
Cetirizine Hydrochloride
Indications
Urticaria
Indication detailsView
It is indicated for the relief of symptoms associated with seasonal & perennial allergic rhinitis. It is also indicated for the treatment of the uncomplicated skin manifestations of chronic idiopathic urticaria and allergen induced asthma.
Therapeutic classView
Sedating Anti-histamine
PharmacologyView
Cetirizine Hydrochloride is a potent H1 receptor antagonist without any significant anticholinergic and antiserotonic effects. At pharmacologically active dose levels, it has almost no drowsiness effect and does not cause behavioral changes. It inhibits the histamine-mediated early phase of the allergic reaction and also reduces the migration of inflammatory cells and the release of mediators associated with the late phase of the allergic reaction.
Pharmacokinetics: Cetirizine 10 mg achieves peak plasma concentrations of 257 mcg/L within one hour of administration (980 mcg/L in children). Food does not affect the extent of absorption, but it may slightly reduce the rate. Peak blood levels 0.3 micrograms/ml are reached between thirty & sixty minutes after administration of 10 mg dose of Cetirizine. Its plasma half-life is approximately 11 hours. Absorption is very consistent from one subject to the next. Its renal clearance is 30 ml/minute and the excretion half-life is approximately nine hours.
Pharmacokinetics: Cetirizine 10 mg achieves peak plasma concentrations of 257 mcg/L within one hour of administration (980 mcg/L in children). Food does not affect the extent of absorption, but it may slightly reduce the rate. Peak blood levels 0.3 micrograms/ml are reached between thirty & sixty minutes after administration of 10 mg dose of Cetirizine. Its plasma half-life is approximately 11 hours. Absorption is very consistent from one subject to the next. Its renal clearance is 30 ml/minute and the excretion half-life is approximately nine hours.
DosageView
Adults and Children 6 years and older: 1 tablet or 2 teaspoonfuls daily (or 1 teaspoonful twice daily).
Children 2-6 years: 1 teaspoonful once daily or 1/2 teaspoonful twice daily.
Children 6 months to 2 years : 1/2 teaspoonful once daily. The dose in children 12-23 months of age can be increased to a maximum dose as 1/2 teaspoonful every 12 hours.
Children 2-6 years: 1 teaspoonful once daily or 1/2 teaspoonful twice daily.
Children 6 months to 2 years : 1/2 teaspoonful once daily. The dose in children 12-23 months of age can be increased to a maximum dose as 1/2 teaspoonful every 12 hours.
Side effectsView
The most common side effects that occurred more frequently on Cetirizine is somnolence.
ContraindicationsView
It is contraindicated in patients with a history of hypersensitivity to Cetirizine or hydroxyzine.
PrecautionsView
Caution should be exercised when driving a car or operating a heavy machinery.
InteractionsView
No clinically significant drug interactions have been found with Theophylline, Azithromycin, Pseudoephedrine, Ketoconazole or Erythromycin and with other drugs.
Pregnancy & lactationView
US FDA Pregnancy Category of Cetirizine Hydrochloride is B. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed. Cetirizine Hydrochloride has been shown to be excreted in human milk. So, caution should be exercised when Cetirizine Hydrochloride is administered to a nursing woman.
StorageView
Keep in a dry place away from light and heat. Keep out of the reach of children.
Zytiga
Abiraterone Acetate
Zytiga
Abiraterone Acetate
Indications
Metastatic prostate cancer
Indication detailsView
Abiraterone Acetate is a CYP17 inhibitor indicated in combination with prednisone for the treatment of patients with
- Metastatic castration-resistant prostate cancer (CRPC).
- Metastatic high-risk castration-sensitive prostate cancer (CSPC).
Therapeutic classView
Cytotoxic Chemotherapy
PharmacologyView
Abiraterone is an orally active inhibitor of the steroidal enzyme CYP17A1 (17 alpha-hydroxylase/C17,20 lyase). It inhibits CYP17A1 in a selective and irreversible manner via covalent binding mechanism. CYP17A1 is an enzyme that catalyzes the biosynthesis of androgen and is highly expressed in testicular, adrenal, and prostatic tumor tissue. More specifically, abiraterone inhibits the conversion of 17-hydroxyprognenolone to dehydroepiandrosterone (DHEA) by the enzyme CYP17A1 to decrease serum levels of testosterone and other androgens.
DosageView
Metastatic castration-resistant prostate cancer: Abiraterone 1,000 mg orally once daily with prednisone 5 mg orally twice daily.
Metastatic castration-sensitive prostate cancer: Abiraterone 1,000 mg orally once daily with prednisone 5 mg orally once daily.
Patients receiving Abiraterone should also receive a gonadotropin-releasing hormone (GnRH) analog concurrently or should have had bilateral orchiectomy. Abiraterone must be taken on an empty stomach with water at least 1 hour before or 2 hours after a meal. Do not crush or chew tablets.
Dose Modification:
Metastatic castration-sensitive prostate cancer: Abiraterone 1,000 mg orally once daily with prednisone 5 mg orally once daily.
Patients receiving Abiraterone should also receive a gonadotropin-releasing hormone (GnRH) analog concurrently or should have had bilateral orchiectomy. Abiraterone must be taken on an empty stomach with water at least 1 hour before or 2 hours after a meal. Do not crush or chew tablets.
Dose Modification:
- For patients with baseline moderate hepatic impairment (Child-Pugh Class B), reduce the Abiraterone starting dose to 250 mg once daily.
- For patients who develop hepatotoxicity during treatment, hold Abiraterone until recovery. Retreatment may be initiated at a reduced dose. Abiraterone should be discontinued if patients develop severe hepatotoxicity.
Side effectsView
The most common adverse reactions are fatigue, arthralgia, hypertension, nausea, edema, hypokalemia, hot flush, diarrhea, vomiting, upper respiratory infection, cough, and headache.
ContraindicationsView
Hypersensitivity to the Abiraterone acetate or to any of the excipients of Abiraterone.
PrecautionsView
Mineralocorticoid excess: Closely monitor patients with cardiovascular disease. Control hypertension and correct hypokalemia before treatment. Monitor blood pressure, serum potassium and symptoms of fluid retention at least monthly.
Adrenocortical insufficiency: Monitor for symptoms and signs of adrenocortical insufficiency. Increased dosage of corticosteroids may be indicated before, during and after stressful situations.
Hepatotoxicity: Can be severe and fatal. Monitor liver function and modify, interrupt, or discontinue Abiraterone dosing as recommended.
Increased fractures and mortality in combination with radium Ra 223 dichloride: Use of Abiraterone plus prednisone/prednisolone in combination with radium Ra 223 dichloride is not recommended.
Embryo-Fetal Toxicity: Abiraterone can cause fetal harm. Advise males with female partners of reproductive potential to use effective contraception.
Adrenocortical insufficiency: Monitor for symptoms and signs of adrenocortical insufficiency. Increased dosage of corticosteroids may be indicated before, during and after stressful situations.
Hepatotoxicity: Can be severe and fatal. Monitor liver function and modify, interrupt, or discontinue Abiraterone dosing as recommended.
Increased fractures and mortality in combination with radium Ra 223 dichloride: Use of Abiraterone plus prednisone/prednisolone in combination with radium Ra 223 dichloride is not recommended.
Embryo-Fetal Toxicity: Abiraterone can cause fetal harm. Advise males with female partners of reproductive potential to use effective contraception.
InteractionsView
CYP3A4 Inducers: Avoid concomitant strong CYP3A4 inducers during Abiraterone treatment. If a strong CYP3A4 inducer must be co-administered, increase the Abiraterone dosing frequency.
CYP2D6 Substrates: Avoid co-administration of Abiraterone with CYP2D6 substrates that have a narrow therapeutic index. If an alternative treatment cannot be used, exercise caution and consider a dose reduction of the concomitant CYP2D6 substrate.
CYP2D6 Substrates: Avoid co-administration of Abiraterone with CYP2D6 substrates that have a narrow therapeutic index. If an alternative treatment cannot be used, exercise caution and consider a dose reduction of the concomitant CYP2D6 substrate.
Pregnancy & lactationView
The safety and efficacy of Abiraterone have not been established in females. Based on findings from animal studies and the mechanism of action, Abiraterone can cause fetal harm and potential loss of pregnancy. There are no human data on the use of Abiraterone in pregnant women. The safety and efficacy of Abiraterone have not been established in females. There is no information available on the presence of abiraterone acetate in human milk, or on the effects on the breastfed child or milk production.
Overdose effectsView
Human experience of overdose with Abiraterone is limited. There is no specific antidote. In the event of an overdose, stop Abiraterone, undertake general supportive measures, including monitoring for arrhythmias and cardiac failure and assess liver function.
StorageView
Keep below 30°C temperature, away from light & moisture. Keep out of the reach of children.
Zytix
Abiraterone Acetate
Zytix
Abiraterone Acetate
Indications
Metastatic prostate cancer
Indication detailsView
Abiraterone Acetate is a CYP17 inhibitor indicated in combination with prednisone for the treatment of patients with
- Metastatic castration-resistant prostate cancer (CRPC).
- Metastatic high-risk castration-sensitive prostate cancer (CSPC).
Therapeutic classView
Cytotoxic Chemotherapy
PharmacologyView
Abiraterone is an orally active inhibitor of the steroidal enzyme CYP17A1 (17 alpha-hydroxylase/C17,20 lyase). It inhibits CYP17A1 in a selective and irreversible manner via covalent binding mechanism. CYP17A1 is an enzyme that catalyzes the biosynthesis of androgen and is highly expressed in testicular, adrenal, and prostatic tumor tissue. More specifically, abiraterone inhibits the conversion of 17-hydroxyprognenolone to dehydroepiandrosterone (DHEA) by the enzyme CYP17A1 to decrease serum levels of testosterone and other androgens.
DosageView
Metastatic castration-resistant prostate cancer: Abiraterone 1,000 mg orally once daily with prednisone 5 mg orally twice daily.
Metastatic castration-sensitive prostate cancer: Abiraterone 1,000 mg orally once daily with prednisone 5 mg orally once daily.
Patients receiving Abiraterone should also receive a gonadotropin-releasing hormone (GnRH) analog concurrently or should have had bilateral orchiectomy. Abiraterone must be taken on an empty stomach with water at least 1 hour before or 2 hours after a meal. Do not crush or chew tablets.
Dose Modification:
Metastatic castration-sensitive prostate cancer: Abiraterone 1,000 mg orally once daily with prednisone 5 mg orally once daily.
Patients receiving Abiraterone should also receive a gonadotropin-releasing hormone (GnRH) analog concurrently or should have had bilateral orchiectomy. Abiraterone must be taken on an empty stomach with water at least 1 hour before or 2 hours after a meal. Do not crush or chew tablets.
Dose Modification:
- For patients with baseline moderate hepatic impairment (Child-Pugh Class B), reduce the Abiraterone starting dose to 250 mg once daily.
- For patients who develop hepatotoxicity during treatment, hold Abiraterone until recovery. Retreatment may be initiated at a reduced dose. Abiraterone should be discontinued if patients develop severe hepatotoxicity.
Side effectsView
The most common adverse reactions are fatigue, arthralgia, hypertension, nausea, edema, hypokalemia, hot flush, diarrhea, vomiting, upper respiratory infection, cough, and headache.
ContraindicationsView
Hypersensitivity to the Abiraterone acetate or to any of the excipients of Abiraterone.
PrecautionsView
Mineralocorticoid excess: Closely monitor patients with cardiovascular disease. Control hypertension and correct hypokalemia before treatment. Monitor blood pressure, serum potassium and symptoms of fluid retention at least monthly.
Adrenocortical insufficiency: Monitor for symptoms and signs of adrenocortical insufficiency. Increased dosage of corticosteroids may be indicated before, during and after stressful situations.
Hepatotoxicity: Can be severe and fatal. Monitor liver function and modify, interrupt, or discontinue Abiraterone dosing as recommended.
Increased fractures and mortality in combination with radium Ra 223 dichloride: Use of Abiraterone plus prednisone/prednisolone in combination with radium Ra 223 dichloride is not recommended.
Embryo-Fetal Toxicity: Abiraterone can cause fetal harm. Advise males with female partners of reproductive potential to use effective contraception.
Adrenocortical insufficiency: Monitor for symptoms and signs of adrenocortical insufficiency. Increased dosage of corticosteroids may be indicated before, during and after stressful situations.
Hepatotoxicity: Can be severe and fatal. Monitor liver function and modify, interrupt, or discontinue Abiraterone dosing as recommended.
Increased fractures and mortality in combination with radium Ra 223 dichloride: Use of Abiraterone plus prednisone/prednisolone in combination with radium Ra 223 dichloride is not recommended.
Embryo-Fetal Toxicity: Abiraterone can cause fetal harm. Advise males with female partners of reproductive potential to use effective contraception.
InteractionsView
CYP3A4 Inducers: Avoid concomitant strong CYP3A4 inducers during Abiraterone treatment. If a strong CYP3A4 inducer must be co-administered, increase the Abiraterone dosing frequency.
CYP2D6 Substrates: Avoid co-administration of Abiraterone with CYP2D6 substrates that have a narrow therapeutic index. If an alternative treatment cannot be used, exercise caution and consider a dose reduction of the concomitant CYP2D6 substrate.
CYP2D6 Substrates: Avoid co-administration of Abiraterone with CYP2D6 substrates that have a narrow therapeutic index. If an alternative treatment cannot be used, exercise caution and consider a dose reduction of the concomitant CYP2D6 substrate.
Pregnancy & lactationView
The safety and efficacy of Abiraterone have not been established in females. Based on findings from animal studies and the mechanism of action, Abiraterone can cause fetal harm and potential loss of pregnancy. There are no human data on the use of Abiraterone in pregnant women. The safety and efficacy of Abiraterone have not been established in females. There is no information available on the presence of abiraterone acetate in human milk, or on the effects on the breastfed child or milk production.
Overdose effectsView
Human experience of overdose with Abiraterone is limited. There is no specific antidote. In the event of an overdose, stop Abiraterone, undertake general supportive measures, including monitoring for arrhythmias and cardiac failure and assess liver function.
StorageView
Keep below 30°C temperature, away from light & moisture. Keep out of the reach of children.
iMAX
Esomeprazole
iMAX
Esomeprazole
Indication detailsView
Esomeprazole is indicated:
- To relieve from chronic heartburn symptoms and other symptoms associated with GERD
- For the healing of erosive esophagitis
- For maintenance of healing of erosive esophagitis
- In combination with amoxicillin and clarithromycin for eradication of Helicobacter pylori infection in patients with duodenal ulcer disease.
- Zollinger-Ellison Syndrome
- Acid related Dyspepsia
- Duodenal & Gastric ulcer
PharmacologyView
Esomeprazole is a proton pump inhibitor that suppresses gastric acid secretion by specific inhibition of the H+/K+-ATPase in the gastric parietal cell. Esomeprazole (S-isomer of omeprazole) is the first single optical isomer of proton pump inhibitor, provides better acid control than racemic proton pump inhibitors.
Absorption: Esomeprazole capsules contain an enteric-coated pellet formulation of esomeprazole magnesium. After oral administration peak plasma levels (Cmax) occur at approximately 1.5 hours (Tmax). The Cmax increases proportionally when the dose is increased, and there is a three-fold increase in the area under the plasma concentration-time curve (AUC) from 20 to 40 mg. At repeated once daily dosing, the systemic bioavailability is approximately 90% compared to 64% after a single dose. The AUC after administration of a single dose of esomeprazole is decreased by 33-53% after food intake compared to fasting conditions. Esomeprazole should be taken at least one hour before meals.
Distribution: Esomeprazole is 97% bound to plasma proteins. Plasma protein binding is constant over the concentration range of 2 20 mmol/L. The apparent volume of distribution at steady state in healthy volunteers is approximately 16 L.
Metabolism: Esomeprazole is extensively metabolized in the liver by the cytochrome P450 (CYP) enzyme system. The metabolites of esomeprazole lack anti-secretory activity. The major part of esomeprazole’s metabolism is dependent upon the CYP2C19 isoenzyme, which forms the hydroxy and desmethyl metabolites. The remaining amount is dependent on CYP3A4 which forms the sulphone metabolite.
Excretion: The plasma elimination half-life of esomeprazole is approximately 1–1.5 hours. Less than 1% of parent drug is excreted in the urine. Approximately 80% of an oral dose of esomeprazole is excreted as inactive metabolites in the urine, and the remainder is found as inactive metabolites in the faeces.
Combination Therapy with Antimicrobials: Esomeprazole magnesium 40 mg once daily is given in combination with clarithromycin 500 mg twice daily and amoxicillin 1000 mg twice daily for 7 days. The mean steady state AUC and Cmax of Esomeprazole increased by 70% and 18%, respectively, during triple combination therapy compared to treatment with Esomeprazole alone. The pharmacokinetic parameters for clarithromycin and amoxicillin are similar during triple combination therapy and administration of each drug alone. However, the mean AUC and Cmax for 14-hydroxyclarithromycin are increased by 19% and 22%, respectively, during triple combination therapy compared to treatment with clarithromycin alone. This increase in exposure to 14-hydroxyclarithromycin is not considered to be clinically significant.
Absorption: Esomeprazole capsules contain an enteric-coated pellet formulation of esomeprazole magnesium. After oral administration peak plasma levels (Cmax) occur at approximately 1.5 hours (Tmax). The Cmax increases proportionally when the dose is increased, and there is a three-fold increase in the area under the plasma concentration-time curve (AUC) from 20 to 40 mg. At repeated once daily dosing, the systemic bioavailability is approximately 90% compared to 64% after a single dose. The AUC after administration of a single dose of esomeprazole is decreased by 33-53% after food intake compared to fasting conditions. Esomeprazole should be taken at least one hour before meals.
Distribution: Esomeprazole is 97% bound to plasma proteins. Plasma protein binding is constant over the concentration range of 2 20 mmol/L. The apparent volume of distribution at steady state in healthy volunteers is approximately 16 L.
Metabolism: Esomeprazole is extensively metabolized in the liver by the cytochrome P450 (CYP) enzyme system. The metabolites of esomeprazole lack anti-secretory activity. The major part of esomeprazole’s metabolism is dependent upon the CYP2C19 isoenzyme, which forms the hydroxy and desmethyl metabolites. The remaining amount is dependent on CYP3A4 which forms the sulphone metabolite.
Excretion: The plasma elimination half-life of esomeprazole is approximately 1–1.5 hours. Less than 1% of parent drug is excreted in the urine. Approximately 80% of an oral dose of esomeprazole is excreted as inactive metabolites in the urine, and the remainder is found as inactive metabolites in the faeces.
Combination Therapy with Antimicrobials: Esomeprazole magnesium 40 mg once daily is given in combination with clarithromycin 500 mg twice daily and amoxicillin 1000 mg twice daily for 7 days. The mean steady state AUC and Cmax of Esomeprazole increased by 70% and 18%, respectively, during triple combination therapy compared to treatment with Esomeprazole alone. The pharmacokinetic parameters for clarithromycin and amoxicillin are similar during triple combination therapy and administration of each drug alone. However, the mean AUC and Cmax for 14-hydroxyclarithromycin are increased by 19% and 22%, respectively, during triple combination therapy compared to treatment with clarithromycin alone. This increase in exposure to 14-hydroxyclarithromycin is not considered to be clinically significant.
DosageView
Healing of Erosive Esophagitis: 20 mg or 40 mg Once Daily for 4-8 Weeks. The majority of patients are healed within 4 to 8 weeks. For patients who don't heal after 4-8 weeks, an additional 4-8 weeks of treatment may be considered. Maintenance of Healing of Erosive
Esophagitis: 20 mg Once Daily (Clinical studies did not extend 6 months).
Symptomatic GERD: 20 mg Once Daily for 4 Weeks. If symptoms do not resolve completely after 4 weeks, an additional 4 weeks of treatment may be considered.
Helicobacter Pylori eradication: Triple Therapy to reduce the risk of Duodenal Ulcer recurrence-Esomeprazole 40 mg Once Daily for 10 days, Amoxicillin 1000 mg Twice Daily for 10 days, Clarithromycin 500 mg Twice Daily for 10 days.
Zollinger-Ellison Syndrome: The dose is 20-80 mg once daily. The dosage should be adjusted individually and treatment continued as long as clinically indicated.
Acid-related Dyspepsia: 20-40 mg once daily for 2-4 weeks according to the response.
Duodenal ulcer: 20 mg once daily for 2-4 weeks. Gastric ulcer: 20-40 mg once daily for 4-8 weeks.
Injection: The recommended adult dose is 40 mg Esomeprazole given once daily by intravenous injection (not less than 3 minutes) or intravenous infusion (10 to 30 minutes). Esomeprazole IV injection should not be administered concomitantly with any other medications through the same intravenous site. Treatment with Esomeprazole IV injection should be discontinued as soon as the patient is able to resume treatment with Esomeprazole delayed-release capsules. Safety and effectiveness in paediatric patients have not been established.
AdministrationView
Esomeprazole tablet or capsule: should be swallowed whole and taken one hour before a meal.
Direction for use of Delayed-Release Oral Suspension: Whole contents of the packet should be taken into a small glass containing 15 ml. of water. The mixer should be stirred well and leave 2 to 3 minutes to thicken. Stir again and drink within 30 minutes. If any medicine remains after drinking, add more water, stir, and drink immediately. If the suspension is to be administered through a nasogastric or gastric tube, the volume of water in the syringe should be 15 ml. & immediately shake the syringe and leave 2 to 3 minutes to thicken. Shake the syringe and inject it through the nasogastric or gastric tube into the stomach within 30 minutes. An appropriately sized syringe should be used. Shake and flush any remaining contents from the nasogastric or gastric tube into the stomach.
Esomeprazole IV Injection: Esomeprazole IV should be given as a slow intravenous injection. The solution for IV injection is obtained by adding to the vial 5 ml of the solvent (WFI) provided. After reconstitution, the injection should be given slowly over a period of at least 3 minutes. The solution should be used within 12 hours of reconstitution when stored at room temperature up to 30°C. No refrigeration is required. The reconstituted solution should not be used if it contains visible particulate.
Direction for use of Delayed-Release Oral Suspension: Whole contents of the packet should be taken into a small glass containing 15 ml. of water. The mixer should be stirred well and leave 2 to 3 minutes to thicken. Stir again and drink within 30 minutes. If any medicine remains after drinking, add more water, stir, and drink immediately. If the suspension is to be administered through a nasogastric or gastric tube, the volume of water in the syringe should be 15 ml. & immediately shake the syringe and leave 2 to 3 minutes to thicken. Shake the syringe and inject it through the nasogastric or gastric tube into the stomach within 30 minutes. An appropriately sized syringe should be used. Shake and flush any remaining contents from the nasogastric or gastric tube into the stomach.
Esomeprazole IV Injection: Esomeprazole IV should be given as a slow intravenous injection. The solution for IV injection is obtained by adding to the vial 5 ml of the solvent (WFI) provided. After reconstitution, the injection should be given slowly over a period of at least 3 minutes. The solution should be used within 12 hours of reconstitution when stored at room temperature up to 30°C. No refrigeration is required. The reconstituted solution should not be used if it contains visible particulate.
Side effectsView
The most frequently occurring adverse events reported with Esomeprazole include headache, diarrhoea, nausea, flatulence, abdominal pain, constipation and dry mouth. There are no difference in types of related adverse events seen during maintenance treatment upto 12 months compared to short term treatment.
ContraindicationsView
Esomeprazole is contraindicated in-patient with known hypersensitivity to any of the formulation.
PrecautionsView
General: Symptomatic response to therapy with esomeprazole does not preclude the presence of gastric malignancy.
Information for patients: Esomeprazole capsules should be taken at least one hour before meals. For patients who have difficulty swallowing capsules, one tablespoon of applesauce can be added to an empty bowl and the Esomeprazole capsules can be opened, and the pellets inside the capsule carefully emptied onto the applesauce. The pellets should be mixed with the applesauce and then swallowed immediately. The applesauce used should not be hot and should be soft enough to be swallowed without chewing. The pellets should not be chewed or crushed. The pellet/applesauce mixture should not be stored for future use. Antacids may be used while taking esomeprazole.
Information for patients: Esomeprazole capsules should be taken at least one hour before meals. For patients who have difficulty swallowing capsules, one tablespoon of applesauce can be added to an empty bowl and the Esomeprazole capsules can be opened, and the pellets inside the capsule carefully emptied onto the applesauce. The pellets should be mixed with the applesauce and then swallowed immediately. The applesauce used should not be hot and should be soft enough to be swallowed without chewing. The pellets should not be chewed or crushed. The pellet/applesauce mixture should not be stored for future use. Antacids may be used while taking esomeprazole.
InteractionsView
Esomeprazole is extensively metabolized in the liver by CYP2C19 and CYP3A4. In vitro and in vivo studies have shown that Esomeprazole is not likely to inhibit CYPs 1A2, 2A6, 2C9, 2D6, 2E1 and 3A4. No clinically relevant interactions with drugs metabolized by these CYP enzymes would be expected. Drug interaction studies have shown that Esomeprazole does not have any clinically significant interactions with phenytoin, warfarin, quinidine, clarithromycin or amoxicillin.
Esomeprazole may potentially interfere with CYP2C19, the major Esomeprazole metabolizing enzyme. Co-administration of Esomeprazole 30 mg and diazepam, a CYP2C19 substrate has resulted in a 45% decrease in clearance of diazepam. Increased plasma levels of diazepam have been observed 12 hours after dosing and onwards. Esomeprazole inhibits gastric acid secretion. Therefore, Esomeprazole may interfere with the absorption of drugs where gastric pH is an important determinant of bioavailability (e.g., ketoconazole, iron salts and digoxin).
Co-administration of oral contraceptives, diazepam, phenytoin, or quinidine do not seem to change the pharmacokinetic profile of Esomeprazole.
Combination Therapy with Clarithromycin: Co-administration of esomeprazole, clarithromycin, and amoxicillin has resulted in increases in the plasma levels of esomeprazole and 14-hydroxyclarithromycin.
Esomeprazole may potentially interfere with CYP2C19, the major Esomeprazole metabolizing enzyme. Co-administration of Esomeprazole 30 mg and diazepam, a CYP2C19 substrate has resulted in a 45% decrease in clearance of diazepam. Increased plasma levels of diazepam have been observed 12 hours after dosing and onwards. Esomeprazole inhibits gastric acid secretion. Therefore, Esomeprazole may interfere with the absorption of drugs where gastric pH is an important determinant of bioavailability (e.g., ketoconazole, iron salts and digoxin).
Co-administration of oral contraceptives, diazepam, phenytoin, or quinidine do not seem to change the pharmacokinetic profile of Esomeprazole.
Combination Therapy with Clarithromycin: Co-administration of esomeprazole, clarithromycin, and amoxicillin has resulted in increases in the plasma levels of esomeprazole and 14-hydroxyclarithromycin.
Pregnancy & lactationView
There are no adequate and well-controlled studies in pregnant women. Animal studies have revealed no teratogenic effects. The excretion of esomeprazole in milk has not been studied. Breast-feeding should be therefore be discontinued if the use of esomeprazole is considered essential.
Pediatric usageView
Paediatric Use: Safety and effectiveness in paediatric patients have not been established.
Geriatric Use: No overall differences in safety and efficacy have been observed between the elderly and younger individuals, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out
Hepatic Insufficiency: No dosage adjustment is recommended for patients with mild to moderate hepatic insufficiency. However, in patients with severe hepatic insufficiency, a dose of 20 mg once daily should not be exceeded.
Renal Insufficiency: The Pharmacokinetics of Esomeprazole in patients with renal impairment are not expected to be altered relative to healthy volunteers as less than 1% of Esomeprazole is excreted unchanged in the urine.
Geriatric Use: No overall differences in safety and efficacy have been observed between the elderly and younger individuals, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out
Hepatic Insufficiency: No dosage adjustment is recommended for patients with mild to moderate hepatic insufficiency. However, in patients with severe hepatic insufficiency, a dose of 20 mg once daily should not be exceeded.
Renal Insufficiency: The Pharmacokinetics of Esomeprazole in patients with renal impairment are not expected to be altered relative to healthy volunteers as less than 1% of Esomeprazole is excreted unchanged in the urine.
Overdose effectsView
A single oral dose of Esomeprazole at 510 mg/kg (about 103 times the human dose on a body surface area basis), has been lethal to rats. The major signs of acute toxicity are reduced motor activity, changes in respiratory frequency, tremor, ataxia, and intermittent clonic convulsions. There have been no reports of overdose with Esomeprazole. No specific antidote for Esomeprazole is known. Since Esomeprazole is extensively protein bound, it is not expected to be removed by dialysis. In the event of overdosage, treatment should be symptomatic and supportive. As with the management of any overdose, the possibility of multiple drug ingestion should be considered.
ReconstitutionView
Infusion: Reconstitute one sterile single-dose vial of Esomeprazole IV Injection with 5 ml of the solvent (WFI) provided and further diluting the resulting solution within 0.9% Sodium Chloride solution or 5% Dextrose solution to make a final volume of 50 ml. The resultant infusion should be given intravenously over a period of 10-30 minutes. Chemical and physical in-use stability has been demonstrated for 12 hours after reconstitution with 0.9% Sodium Chloride solution or for 6 hours after reconstitution with 5% Dextrose solution. From a microbial point of view, the product should be used immediately. Any unused portion should be discarded.
StorageView
Store at a temperature not exceeding 30°C in a dry place. Protect from light and moisture. Keep out of reach of children.
iMAX
Esomeprazole
iMAX
Esomeprazole
Indication detailsView
Esomeprazole is indicated:
- To relieve from chronic heartburn symptoms and other symptoms associated with GERD
- For the healing of erosive esophagitis
- For maintenance of healing of erosive esophagitis
- In combination with amoxicillin and clarithromycin for eradication of Helicobacter pylori infection in patients with duodenal ulcer disease.
- Zollinger-Ellison Syndrome
- Acid related Dyspepsia
- Duodenal & Gastric ulcer
PharmacologyView
Esomeprazole is a proton pump inhibitor that suppresses gastric acid secretion by specific inhibition of the H+/K+-ATPase in the gastric parietal cell. Esomeprazole (S-isomer of omeprazole) is the first single optical isomer of proton pump inhibitor, provides better acid control than racemic proton pump inhibitors.
Absorption: Esomeprazole capsules contain an enteric-coated pellet formulation of esomeprazole magnesium. After oral administration peak plasma levels (Cmax) occur at approximately 1.5 hours (Tmax). The Cmax increases proportionally when the dose is increased, and there is a three-fold increase in the area under the plasma concentration-time curve (AUC) from 20 to 40 mg. At repeated once daily dosing, the systemic bioavailability is approximately 90% compared to 64% after a single dose. The AUC after administration of a single dose of esomeprazole is decreased by 33-53% after food intake compared to fasting conditions. Esomeprazole should be taken at least one hour before meals.
Distribution: Esomeprazole is 97% bound to plasma proteins. Plasma protein binding is constant over the concentration range of 2 20 mmol/L. The apparent volume of distribution at steady state in healthy volunteers is approximately 16 L.
Metabolism: Esomeprazole is extensively metabolized in the liver by the cytochrome P450 (CYP) enzyme system. The metabolites of esomeprazole lack anti-secretory activity. The major part of esomeprazole’s metabolism is dependent upon the CYP2C19 isoenzyme, which forms the hydroxy and desmethyl metabolites. The remaining amount is dependent on CYP3A4 which forms the sulphone metabolite.
Excretion: The plasma elimination half-life of esomeprazole is approximately 1–1.5 hours. Less than 1% of parent drug is excreted in the urine. Approximately 80% of an oral dose of esomeprazole is excreted as inactive metabolites in the urine, and the remainder is found as inactive metabolites in the faeces.
Combination Therapy with Antimicrobials: Esomeprazole magnesium 40 mg once daily is given in combination with clarithromycin 500 mg twice daily and amoxicillin 1000 mg twice daily for 7 days. The mean steady state AUC and Cmax of Esomeprazole increased by 70% and 18%, respectively, during triple combination therapy compared to treatment with Esomeprazole alone. The pharmacokinetic parameters for clarithromycin and amoxicillin are similar during triple combination therapy and administration of each drug alone. However, the mean AUC and Cmax for 14-hydroxyclarithromycin are increased by 19% and 22%, respectively, during triple combination therapy compared to treatment with clarithromycin alone. This increase in exposure to 14-hydroxyclarithromycin is not considered to be clinically significant.
Absorption: Esomeprazole capsules contain an enteric-coated pellet formulation of esomeprazole magnesium. After oral administration peak plasma levels (Cmax) occur at approximately 1.5 hours (Tmax). The Cmax increases proportionally when the dose is increased, and there is a three-fold increase in the area under the plasma concentration-time curve (AUC) from 20 to 40 mg. At repeated once daily dosing, the systemic bioavailability is approximately 90% compared to 64% after a single dose. The AUC after administration of a single dose of esomeprazole is decreased by 33-53% after food intake compared to fasting conditions. Esomeprazole should be taken at least one hour before meals.
Distribution: Esomeprazole is 97% bound to plasma proteins. Plasma protein binding is constant over the concentration range of 2 20 mmol/L. The apparent volume of distribution at steady state in healthy volunteers is approximately 16 L.
Metabolism: Esomeprazole is extensively metabolized in the liver by the cytochrome P450 (CYP) enzyme system. The metabolites of esomeprazole lack anti-secretory activity. The major part of esomeprazole’s metabolism is dependent upon the CYP2C19 isoenzyme, which forms the hydroxy and desmethyl metabolites. The remaining amount is dependent on CYP3A4 which forms the sulphone metabolite.
Excretion: The plasma elimination half-life of esomeprazole is approximately 1–1.5 hours. Less than 1% of parent drug is excreted in the urine. Approximately 80% of an oral dose of esomeprazole is excreted as inactive metabolites in the urine, and the remainder is found as inactive metabolites in the faeces.
Combination Therapy with Antimicrobials: Esomeprazole magnesium 40 mg once daily is given in combination with clarithromycin 500 mg twice daily and amoxicillin 1000 mg twice daily for 7 days. The mean steady state AUC and Cmax of Esomeprazole increased by 70% and 18%, respectively, during triple combination therapy compared to treatment with Esomeprazole alone. The pharmacokinetic parameters for clarithromycin and amoxicillin are similar during triple combination therapy and administration of each drug alone. However, the mean AUC and Cmax for 14-hydroxyclarithromycin are increased by 19% and 22%, respectively, during triple combination therapy compared to treatment with clarithromycin alone. This increase in exposure to 14-hydroxyclarithromycin is not considered to be clinically significant.
DosageView
Healing of Erosive Esophagitis: 20 mg or 40 mg Once Daily for 4-8 Weeks. The majority of patients are healed within 4 to 8 weeks. For patients who don't heal after 4-8 weeks, an additional 4-8 weeks of treatment may be considered. Maintenance of Healing of Erosive
Esophagitis: 20 mg Once Daily (Clinical studies did not extend 6 months).
Symptomatic GERD: 20 mg Once Daily for 4 Weeks. If symptoms do not resolve completely after 4 weeks, an additional 4 weeks of treatment may be considered.
Helicobacter Pylori eradication: Triple Therapy to reduce the risk of Duodenal Ulcer recurrence-Esomeprazole 40 mg Once Daily for 10 days, Amoxicillin 1000 mg Twice Daily for 10 days, Clarithromycin 500 mg Twice Daily for 10 days.
Zollinger-Ellison Syndrome: The dose is 20-80 mg once daily. The dosage should be adjusted individually and treatment continued as long as clinically indicated.
Acid-related Dyspepsia: 20-40 mg once daily for 2-4 weeks according to the response.
Duodenal ulcer: 20 mg once daily for 2-4 weeks. Gastric ulcer: 20-40 mg once daily for 4-8 weeks.
Injection: The recommended adult dose is 40 mg Esomeprazole given once daily by intravenous injection (not less than 3 minutes) or intravenous infusion (10 to 30 minutes). Esomeprazole IV injection should not be administered concomitantly with any other medications through the same intravenous site. Treatment with Esomeprazole IV injection should be discontinued as soon as the patient is able to resume treatment with Esomeprazole delayed-release capsules. Safety and effectiveness in paediatric patients have not been established.
AdministrationView
Esomeprazole tablet or capsule: should be swallowed whole and taken one hour before a meal.
Direction for use of Delayed-Release Oral Suspension: Whole contents of the packet should be taken into a small glass containing 15 ml. of water. The mixer should be stirred well and leave 2 to 3 minutes to thicken. Stir again and drink within 30 minutes. If any medicine remains after drinking, add more water, stir, and drink immediately. If the suspension is to be administered through a nasogastric or gastric tube, the volume of water in the syringe should be 15 ml. & immediately shake the syringe and leave 2 to 3 minutes to thicken. Shake the syringe and inject it through the nasogastric or gastric tube into the stomach within 30 minutes. An appropriately sized syringe should be used. Shake and flush any remaining contents from the nasogastric or gastric tube into the stomach.
Esomeprazole IV Injection: Esomeprazole IV should be given as a slow intravenous injection. The solution for IV injection is obtained by adding to the vial 5 ml of the solvent (WFI) provided. After reconstitution, the injection should be given slowly over a period of at least 3 minutes. The solution should be used within 12 hours of reconstitution when stored at room temperature up to 30°C. No refrigeration is required. The reconstituted solution should not be used if it contains visible particulate.
Direction for use of Delayed-Release Oral Suspension: Whole contents of the packet should be taken into a small glass containing 15 ml. of water. The mixer should be stirred well and leave 2 to 3 minutes to thicken. Stir again and drink within 30 minutes. If any medicine remains after drinking, add more water, stir, and drink immediately. If the suspension is to be administered through a nasogastric or gastric tube, the volume of water in the syringe should be 15 ml. & immediately shake the syringe and leave 2 to 3 minutes to thicken. Shake the syringe and inject it through the nasogastric or gastric tube into the stomach within 30 minutes. An appropriately sized syringe should be used. Shake and flush any remaining contents from the nasogastric or gastric tube into the stomach.
Esomeprazole IV Injection: Esomeprazole IV should be given as a slow intravenous injection. The solution for IV injection is obtained by adding to the vial 5 ml of the solvent (WFI) provided. After reconstitution, the injection should be given slowly over a period of at least 3 minutes. The solution should be used within 12 hours of reconstitution when stored at room temperature up to 30°C. No refrigeration is required. The reconstituted solution should not be used if it contains visible particulate.
Side effectsView
The most frequently occurring adverse events reported with Esomeprazole include headache, diarrhoea, nausea, flatulence, abdominal pain, constipation and dry mouth. There are no difference in types of related adverse events seen during maintenance treatment upto 12 months compared to short term treatment.
ContraindicationsView
Esomeprazole is contraindicated in-patient with known hypersensitivity to any of the formulation.
PrecautionsView
General: Symptomatic response to therapy with esomeprazole does not preclude the presence of gastric malignancy.
Information for patients: Esomeprazole capsules should be taken at least one hour before meals. For patients who have difficulty swallowing capsules, one tablespoon of applesauce can be added to an empty bowl and the Esomeprazole capsules can be opened, and the pellets inside the capsule carefully emptied onto the applesauce. The pellets should be mixed with the applesauce and then swallowed immediately. The applesauce used should not be hot and should be soft enough to be swallowed without chewing. The pellets should not be chewed or crushed. The pellet/applesauce mixture should not be stored for future use. Antacids may be used while taking esomeprazole.
Information for patients: Esomeprazole capsules should be taken at least one hour before meals. For patients who have difficulty swallowing capsules, one tablespoon of applesauce can be added to an empty bowl and the Esomeprazole capsules can be opened, and the pellets inside the capsule carefully emptied onto the applesauce. The pellets should be mixed with the applesauce and then swallowed immediately. The applesauce used should not be hot and should be soft enough to be swallowed without chewing. The pellets should not be chewed or crushed. The pellet/applesauce mixture should not be stored for future use. Antacids may be used while taking esomeprazole.
InteractionsView
Esomeprazole is extensively metabolized in the liver by CYP2C19 and CYP3A4. In vitro and in vivo studies have shown that Esomeprazole is not likely to inhibit CYPs 1A2, 2A6, 2C9, 2D6, 2E1 and 3A4. No clinically relevant interactions with drugs metabolized by these CYP enzymes would be expected. Drug interaction studies have shown that Esomeprazole does not have any clinically significant interactions with phenytoin, warfarin, quinidine, clarithromycin or amoxicillin.
Esomeprazole may potentially interfere with CYP2C19, the major Esomeprazole metabolizing enzyme. Co-administration of Esomeprazole 30 mg and diazepam, a CYP2C19 substrate has resulted in a 45% decrease in clearance of diazepam. Increased plasma levels of diazepam have been observed 12 hours after dosing and onwards. Esomeprazole inhibits gastric acid secretion. Therefore, Esomeprazole may interfere with the absorption of drugs where gastric pH is an important determinant of bioavailability (e.g., ketoconazole, iron salts and digoxin).
Co-administration of oral contraceptives, diazepam, phenytoin, or quinidine do not seem to change the pharmacokinetic profile of Esomeprazole.
Combination Therapy with Clarithromycin: Co-administration of esomeprazole, clarithromycin, and amoxicillin has resulted in increases in the plasma levels of esomeprazole and 14-hydroxyclarithromycin.
Esomeprazole may potentially interfere with CYP2C19, the major Esomeprazole metabolizing enzyme. Co-administration of Esomeprazole 30 mg and diazepam, a CYP2C19 substrate has resulted in a 45% decrease in clearance of diazepam. Increased plasma levels of diazepam have been observed 12 hours after dosing and onwards. Esomeprazole inhibits gastric acid secretion. Therefore, Esomeprazole may interfere with the absorption of drugs where gastric pH is an important determinant of bioavailability (e.g., ketoconazole, iron salts and digoxin).
Co-administration of oral contraceptives, diazepam, phenytoin, or quinidine do not seem to change the pharmacokinetic profile of Esomeprazole.
Combination Therapy with Clarithromycin: Co-administration of esomeprazole, clarithromycin, and amoxicillin has resulted in increases in the plasma levels of esomeprazole and 14-hydroxyclarithromycin.
Pregnancy & lactationView
There are no adequate and well-controlled studies in pregnant women. Animal studies have revealed no teratogenic effects. The excretion of esomeprazole in milk has not been studied. Breast-feeding should be therefore be discontinued if the use of esomeprazole is considered essential.
Pediatric usageView
Paediatric Use: Safety and effectiveness in paediatric patients have not been established.
Geriatric Use: No overall differences in safety and efficacy have been observed between the elderly and younger individuals, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out
Hepatic Insufficiency: No dosage adjustment is recommended for patients with mild to moderate hepatic insufficiency. However, in patients with severe hepatic insufficiency, a dose of 20 mg once daily should not be exceeded.
Renal Insufficiency: The Pharmacokinetics of Esomeprazole in patients with renal impairment are not expected to be altered relative to healthy volunteers as less than 1% of Esomeprazole is excreted unchanged in the urine.
Geriatric Use: No overall differences in safety and efficacy have been observed between the elderly and younger individuals, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out
Hepatic Insufficiency: No dosage adjustment is recommended for patients with mild to moderate hepatic insufficiency. However, in patients with severe hepatic insufficiency, a dose of 20 mg once daily should not be exceeded.
Renal Insufficiency: The Pharmacokinetics of Esomeprazole in patients with renal impairment are not expected to be altered relative to healthy volunteers as less than 1% of Esomeprazole is excreted unchanged in the urine.
Overdose effectsView
A single oral dose of Esomeprazole at 510 mg/kg (about 103 times the human dose on a body surface area basis), has been lethal to rats. The major signs of acute toxicity are reduced motor activity, changes in respiratory frequency, tremor, ataxia, and intermittent clonic convulsions. There have been no reports of overdose with Esomeprazole. No specific antidote for Esomeprazole is known. Since Esomeprazole is extensively protein bound, it is not expected to be removed by dialysis. In the event of overdosage, treatment should be symptomatic and supportive. As with the management of any overdose, the possibility of multiple drug ingestion should be considered.
ReconstitutionView
Infusion: Reconstitute one sterile single-dose vial of Esomeprazole IV Injection with 5 ml of the solvent (WFI) provided and further diluting the resulting solution within 0.9% Sodium Chloride solution or 5% Dextrose solution to make a final volume of 50 ml. The resultant infusion should be given intravenously over a period of 10-30 minutes. Chemical and physical in-use stability has been demonstrated for 12 hours after reconstitution with 0.9% Sodium Chloride solution or for 6 hours after reconstitution with 5% Dextrose solution. From a microbial point of view, the product should be used immediately. Any unused portion should be discarded.
StorageView
Store at a temperature not exceeding 30°C in a dry place. Protect from light and moisture. Keep out of reach of children.
kTx
Tadalafil
kTx
Tadalafil
Indications
Pulmonary arterial hypertension
Indication detailsView
Tadalafil is indicated in-
- Erectile Dysfunction (ED)
- Benign Prostatic Hyperplasia (BPH)
- Both Erectile Dysfunction and signs and symptoms of Benign Prostatic Hyperplasia
Therapeutic classView
Drugs for Erectile Dysfunction
PharmacologyView
Tadalafil is a selective phosphodiesterase type 5 (PDE5) inhibitor. Inhibition of PDE5 increases cGMP in smooth muscle cells. cGMP causes smooth muscle relaxation and increased blood flow into the corpus cavernosum, causing penile erection. PDE5 also is present in smooth muscles of the prostate and bladder wall. Inhibiting PDE5 increases cGMP concentrations leading to relaxation of smooth muscle in the prostate and bladder. Smooth muscle relaxation may improve blood flow to the urinary tract and widen the opening of the bladder neck, resulting in improved voiding.
DosageView
Erectile Dysfunction: For most patients the recommended starting dose is 10 mg. The dose may be increased to 20 mg or decreased to 5 mg based on requirement. The maximum dosing frequency is once daily. Tadalafil is effective for up to 36 hours.
Benign prostatic hyperplasia: The recommended dose is 5 mg taken at the same time every day.
Combined Erectile Dysfunction and Benign prostatic hyperplasia: The recommended dose is 5 mg at the same time every day.
Side effectsView
Headache, Dyspepsia, Back pain, Myalgia, Nasal pharyngitis, Nasal congestion are common side effects. Change in Color Vision, Sudden vision loss, Hearing loss, Stevens-Johnson Syndrome, Exfoliative dermatitis, Angina, Stroke, Myocardial infarction, Severe hypotension, Tachycardia may also occur rarely.
ContraindicationsView
- Use of Nitrates (for example, Nitroglycerine, Isosorbide): may increase hypotensive effects of Nitrates
- Hypersensitivity reactions to Tadalafil
PrecautionsView
Angina, renal impairment, hepatic impairment, bleeding concomitant with Nitrates, Alpha Blockers, Alcohol, CYP3A4 Inhibitors (for example, Ritonavir, Ketoconazole, Itraconazole), other PDE5 inhibitors precaution should be taken in all these conditions.
InteractionsView
May interact with Nitrates for example, Isosorbide, Nitroglycerin, Alpha adrenergic blockers, Antihypertensives, Alcohol, Antacids (magnesuim hydroxide/aluminum hydroxide), Ketoconazole, Ritonavir, Erythromycin, Itraconazole, Grapefruit juice, other HIV protease inhibitors, Rifampin, Carbamazepine, Phenytoin & Phenobarbital.
Pregnancy & lactationView
Tadalafil has been assigned to pregnancy category B by the USFDA. Tadalafil is only recommended for use during pregnancy when benefit outweighs risk. There are no data on the excretion of Tadalafil in human milk. Caution should be used when administering tadalafil to nursing women.
StorageView
Keep in a dry place, away from light and heat. Keep out of the reach of children.
kTx
Tadalafil
kTx
Tadalafil
Indications
Pulmonary arterial hypertension
Indication detailsView
Tadalafil is indicated in-
- Erectile Dysfunction (ED)
- Benign Prostatic Hyperplasia (BPH)
- Both Erectile Dysfunction and signs and symptoms of Benign Prostatic Hyperplasia
Therapeutic classView
Drugs for Erectile Dysfunction
PharmacologyView
Tadalafil is a selective phosphodiesterase type 5 (PDE5) inhibitor. Inhibition of PDE5 increases cGMP in smooth muscle cells. cGMP causes smooth muscle relaxation and increased blood flow into the corpus cavernosum, causing penile erection. PDE5 also is present in smooth muscles of the prostate and bladder wall. Inhibiting PDE5 increases cGMP concentrations leading to relaxation of smooth muscle in the prostate and bladder. Smooth muscle relaxation may improve blood flow to the urinary tract and widen the opening of the bladder neck, resulting in improved voiding.
DosageView
Erectile Dysfunction: For most patients the recommended starting dose is 10 mg. The dose may be increased to 20 mg or decreased to 5 mg based on requirement. The maximum dosing frequency is once daily. Tadalafil is effective for up to 36 hours.
Benign prostatic hyperplasia: The recommended dose is 5 mg taken at the same time every day.
Combined Erectile Dysfunction and Benign prostatic hyperplasia: The recommended dose is 5 mg at the same time every day.
Side effectsView
Headache, Dyspepsia, Back pain, Myalgia, Nasal pharyngitis, Nasal congestion are common side effects. Change in Color Vision, Sudden vision loss, Hearing loss, Stevens-Johnson Syndrome, Exfoliative dermatitis, Angina, Stroke, Myocardial infarction, Severe hypotension, Tachycardia may also occur rarely.
ContraindicationsView
- Use of Nitrates (for example, Nitroglycerine, Isosorbide): may increase hypotensive effects of Nitrates
- Hypersensitivity reactions to Tadalafil
PrecautionsView
Angina, renal impairment, hepatic impairment, bleeding concomitant with Nitrates, Alpha Blockers, Alcohol, CYP3A4 Inhibitors (for example, Ritonavir, Ketoconazole, Itraconazole), other PDE5 inhibitors precaution should be taken in all these conditions.
InteractionsView
May interact with Nitrates for example, Isosorbide, Nitroglycerin, Alpha adrenergic blockers, Antihypertensives, Alcohol, Antacids (magnesuim hydroxide/aluminum hydroxide), Ketoconazole, Ritonavir, Erythromycin, Itraconazole, Grapefruit juice, other HIV protease inhibitors, Rifampin, Carbamazepine, Phenytoin & Phenobarbital.
Pregnancy & lactationView
Tadalafil has been assigned to pregnancy category B by the USFDA. Tadalafil is only recommended for use during pregnancy when benefit outweighs risk. There are no data on the excretion of Tadalafil in human milk. Caution should be used when administering tadalafil to nursing women.
StorageView
Keep in a dry place, away from light and heat. Keep out of the reach of children.
kTx
Tadalafil
kTx
Tadalafil
Indications
Pulmonary arterial hypertension
Indication detailsView
Tadalafil is indicated in-
- Erectile Dysfunction (ED)
- Benign Prostatic Hyperplasia (BPH)
- Both Erectile Dysfunction and signs and symptoms of Benign Prostatic Hyperplasia
Therapeutic classView
Drugs for Erectile Dysfunction
PharmacologyView
Tadalafil is a selective phosphodiesterase type 5 (PDE5) inhibitor. Inhibition of PDE5 increases cGMP in smooth muscle cells. cGMP causes smooth muscle relaxation and increased blood flow into the corpus cavernosum, causing penile erection. PDE5 also is present in smooth muscles of the prostate and bladder wall. Inhibiting PDE5 increases cGMP concentrations leading to relaxation of smooth muscle in the prostate and bladder. Smooth muscle relaxation may improve blood flow to the urinary tract and widen the opening of the bladder neck, resulting in improved voiding.
DosageView
Erectile Dysfunction: For most patients the recommended starting dose is 10 mg. The dose may be increased to 20 mg or decreased to 5 mg based on requirement. The maximum dosing frequency is once daily. Tadalafil is effective for up to 36 hours.
Benign prostatic hyperplasia: The recommended dose is 5 mg taken at the same time every day.
Combined Erectile Dysfunction and Benign prostatic hyperplasia: The recommended dose is 5 mg at the same time every day.
Side effectsView
Headache, Dyspepsia, Back pain, Myalgia, Nasal pharyngitis, Nasal congestion are common side effects. Change in Color Vision, Sudden vision loss, Hearing loss, Stevens-Johnson Syndrome, Exfoliative dermatitis, Angina, Stroke, Myocardial infarction, Severe hypotension, Tachycardia may also occur rarely.
ContraindicationsView
- Use of Nitrates (for example, Nitroglycerine, Isosorbide): may increase hypotensive effects of Nitrates
- Hypersensitivity reactions to Tadalafil
PrecautionsView
Angina, renal impairment, hepatic impairment, bleeding concomitant with Nitrates, Alpha Blockers, Alcohol, CYP3A4 Inhibitors (for example, Ritonavir, Ketoconazole, Itraconazole), other PDE5 inhibitors precaution should be taken in all these conditions.
InteractionsView
May interact with Nitrates for example, Isosorbide, Nitroglycerin, Alpha adrenergic blockers, Antihypertensives, Alcohol, Antacids (magnesuim hydroxide/aluminum hydroxide), Ketoconazole, Ritonavir, Erythromycin, Itraconazole, Grapefruit juice, other HIV protease inhibitors, Rifampin, Carbamazepine, Phenytoin & Phenobarbital.
Pregnancy & lactationView
Tadalafil has been assigned to pregnancy category B by the USFDA. Tadalafil is only recommended for use during pregnancy when benefit outweighs risk. There are no data on the excretion of Tadalafil in human milk. Caution should be used when administering tadalafil to nursing women.
StorageView
Keep in a dry place, away from light and heat. Keep out of the reach of children.
kX-100
Sildenafil Citrate
kX-100
Sildenafil Citrate
Indications
Pulmonary arterial hypertension
Indication detailsView
Sildenafil is indicated for the treatment of erectile dysfunction.
Therapeutic classView
Drugs for Erectile Dysfunction
PharmacologyView
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.
DosageView
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.
AdministrationView
Sildenafil may takes longer time to work if you take it with a heavy meal.
Side effectsView
The adverse effects treated with Sildenafil are headache, flushing, dyspepsia, nasal congestion, urinary tract infection, abnormal vision, diarrhea, dizziness and rash.
ContraindicationsView
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.
PrecautionsView
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.
InteractionsView
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 & lactationView
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.
StorageView
Keep in a dry place, away from light and heat. Keep out of the reach of children.
kX-50
Sildenafil Citrate
kX-50
Sildenafil Citrate
Indications
Pulmonary arterial hypertension
Indication detailsView
Sildenafil is indicated for the treatment of erectile dysfunction.
Therapeutic classView
Drugs for Erectile Dysfunction
PharmacologyView
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.
DosageView
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.
AdministrationView
Sildenafil may takes longer time to work if you take it with a heavy meal.
Side effectsView
The adverse effects treated with Sildenafil are headache, flushing, dyspepsia, nasal congestion, urinary tract infection, abnormal vision, diarrhea, dizziness and rash.
ContraindicationsView
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.
PrecautionsView
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.
InteractionsView
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 & lactationView
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.
StorageView
Keep in a dry place, away from light and heat. Keep out of the reach of children.
rFSH
Recombinant Follicle Stimulating Hormone (rFSH)
rFSH
Recombinant Follicle Stimulating Hormone (rFSH)
Indications
Polycystic ovarian syndrome
Indication detailsView
In the Female:
- Ovulation Induction: rFSH administered SC with HCG in a sequential manner, which is indicated for ovulation induction in patients who have previously received pituitary suppression.
- Multi-follicular Development: During ART: rFSH administered SC in conjunction with HCG is indicated for multiple follicular developments (controlled ovarian stimulation) during ART cycles in patients who have previously received pituitary suppression.
- Polycystic Ovarian Syndrome (PCOS): Used to treat Polycystic Ovarian Syndrome (PCOS) related infertility
Therapeutic classView
Drugs for Infertility, Trophic Hormones & Related Synthetic Drugs
PharmacologyView
rFSH is a Follicle Stimulating Hormone (FSH) preparation of recombinant DNA origin, which consists of two non-covalently linked, nonidentical glycoproteins designated as the α- and β subunits. The α- and β-subunits have 92 and 111 amino acids respectively, and their primary and tertiary structure are indistinguishable from those of human Follicle Stimulating Hormone. Recombinant FSH production occurs in genetically modified Chinese Hamster Ovary (CHO) cells cultured in bioreactors. Purification by immunochromatography using an antibody specifically binding FSH results in a highly purified preparation with a consistent FSH isoform profile and a high specific activity. The biological activity of rFSH is determined by measuring the increase in ovary weight in female rats. The in vivo biological activity of rFSH has been calibrated against the first International Standard for Recombinant Human Follicle Stimulating Hormone established in 1995 by the Expert Committee on Biological Standards of the World Health Organization. rFSH contains no Luteinizing Hormone (LH) activity.
DosageView
To prevent painful injections and minimize leakage from the injection site rFSH should be slowly administered subcutaneously. The subcutaneous injection site should be alternated to prevent lipoathrophy. Any unused solution should be discarded. Subcutaneous injection of rFSH may be carried out by patient or partner, provided that proper instructions are given by the physician. Self-administration of rFSH should only be performed by patients who are well motivated, adequately trained and with access to expert advice.
Dosage in Female: There are great inter and intra-individual variations in the response of the ovaries to exogenous gonadotrophins. This makes it impossible to set an uniform dosage scheme. The dosage should, therefore, be adjusted individually depending on the ovarian response. This requires ultrasonography and monitoring of estradiol levels. There should be consideration to minimize the risk of unwanted ovarian hyperstimulation. rFSH can be given either alone, or in combination with a GnRH analogue to prevent premature luteinisation. In the latter case, especially when using a GnRH agonist, a higher total treatment dose of rFSH may be required to achieve an adequate follicular response. Clinical experience with rFSH is based on up to three treatment cycles in both indications. Overall experience with IVF indicates that in general the treatment success rate remains stable during the first four attempts and gradually declines thereafter.
Ovulation Induction in Women: Starting daily dose of 75 international units (IU) of rFSH is administered subcutaneously or subcutaneous for at least the first 7 days. The dose is increased by 25 or 75 international units (IU) at weekly intervals until follicular growth and/or serum estradiol levels indicate an adequate response. When an acceptable pre-ovulatory state is achieved, final oocyte maturation is achieved with 5000 to 10,000 international units (IU) of human chorionic gonadotropin (HCG). The woman and her partner should have intercourse daily, beginning on the day prior to the administration of HCG and until ovulation becomes apparent.
Assisted Reproductive Technology (ART): In Women, Starting dose of 150 to 300 international units (IU) of rFSH is administered subcutaneous for at least the first 4 days of treatment. Subsequent doses are adjusted based upon ovarian response as determined by ultrasound evaluation of follicular growth and serum estradiol levels. Final oocyte maturation is induced with a dose of 5000-10000 international units of HCG Oocyte (egg) retrieval is performed 34 to 36 hours later.
PCOS: rFSH injections are therefore given each morning as a subcutaneous injection. It is best to start with the lowest dose of rFSH per day (using 75 IU per day). These doses are used for 4 to 6 days at a time. The ovarian response is determined by measuring estrogen levels in the blood. When the estrogen begins to rise, the rFSH is successfully growing an egg or eggs. If there is no response to a dose of rFSH in 5-6 days of injections the dose will be increased. The normal dose increments are 75 units, 100 units, 150 units and 300 units per day. Most patients respond with 75 IU to 150 IU per day. However it is very important that increments are only made cautiously.
Dosage in Male: Induction of Spermatogenesis in Men: Pre-treatment with HCG alone (2500 international units twice weekly) is required. If serum testosterone levels have not normalized after 8 weeks of HCG treatment, the dose may be increased to 5000 international units (IU) twice a week. After normalization of serum testosterone levels, administer 300 international units (IU) per week (300 international units twice weekly or 100 international units three times weekly) of rFSH subcutaneously with the same pre-treatment HCG dose used to normalize testosterone level.
Dosage in Female: There are great inter and intra-individual variations in the response of the ovaries to exogenous gonadotrophins. This makes it impossible to set an uniform dosage scheme. The dosage should, therefore, be adjusted individually depending on the ovarian response. This requires ultrasonography and monitoring of estradiol levels. There should be consideration to minimize the risk of unwanted ovarian hyperstimulation. rFSH can be given either alone, or in combination with a GnRH analogue to prevent premature luteinisation. In the latter case, especially when using a GnRH agonist, a higher total treatment dose of rFSH may be required to achieve an adequate follicular response. Clinical experience with rFSH is based on up to three treatment cycles in both indications. Overall experience with IVF indicates that in general the treatment success rate remains stable during the first four attempts and gradually declines thereafter.
Ovulation Induction in Women: Starting daily dose of 75 international units (IU) of rFSH is administered subcutaneously or subcutaneous for at least the first 7 days. The dose is increased by 25 or 75 international units (IU) at weekly intervals until follicular growth and/or serum estradiol levels indicate an adequate response. When an acceptable pre-ovulatory state is achieved, final oocyte maturation is achieved with 5000 to 10,000 international units (IU) of human chorionic gonadotropin (HCG). The woman and her partner should have intercourse daily, beginning on the day prior to the administration of HCG and until ovulation becomes apparent.
Assisted Reproductive Technology (ART): In Women, Starting dose of 150 to 300 international units (IU) of rFSH is administered subcutaneous for at least the first 4 days of treatment. Subsequent doses are adjusted based upon ovarian response as determined by ultrasound evaluation of follicular growth and serum estradiol levels. Final oocyte maturation is induced with a dose of 5000-10000 international units of HCG Oocyte (egg) retrieval is performed 34 to 36 hours later.
PCOS: rFSH injections are therefore given each morning as a subcutaneous injection. It is best to start with the lowest dose of rFSH per day (using 75 IU per day). These doses are used for 4 to 6 days at a time. The ovarian response is determined by measuring estrogen levels in the blood. When the estrogen begins to rise, the rFSH is successfully growing an egg or eggs. If there is no response to a dose of rFSH in 5-6 days of injections the dose will be increased. The normal dose increments are 75 units, 100 units, 150 units and 300 units per day. Most patients respond with 75 IU to 150 IU per day. However it is very important that increments are only made cautiously.
Dosage in Male: Induction of Spermatogenesis in Men: Pre-treatment with HCG alone (2500 international units twice weekly) is required. If serum testosterone levels have not normalized after 8 weeks of HCG treatment, the dose may be increased to 5000 international units (IU) twice a week. After normalization of serum testosterone levels, administer 300 international units (IU) per week (300 international units twice weekly or 100 international units three times weekly) of rFSH subcutaneously with the same pre-treatment HCG dose used to normalize testosterone level.
AdministrationView
rFSH administered for 7 to 12 days produces ovarian follicular growth in women who do not have primary ovarian failure. Treatment with rFSH in most instances results only in follicular growth and maturation. When sufficient follicular maturation has occurred, HCG must be given to induce ovulation.
Side effectsView
Recombinant FSH sometimes excites the ovaries too much. This may cause pelvic pain or breathing problems. It may also make you urinate less. In rare cases, patients with this problem have had serious lung problems, including fluid in the lungs, troublebreathing, and worsening of asthma blood clots, Severe Pelvic pain, Chest pain, or Abdominal pain, Nausea, Vomiting, Sudden weight gain, Bloating, Trouble, Breathing. Recombinant FSH may cause twins or multiple births.
ContraindicationsView
- Tumors of the ovary, breast, uterus, pituitary or hypothalamus
- Pregnancy or lactation
- Undiagnosed vaginal bleeding
- Hypersensitivity to the active substance or to any of the excipients
- Primary ovarian failure
- Fibroid tumors of the uterus incompatible with pregnancy
- Primary testicular failure.
PrecautionsView
- The presence of uncontrolled non gonodal endocrinopathies (e.g. thyroid, adrenal or pituitary disorders) should be excluded.
- In pregnancies occurring after induction of ovulation with gonadotrophin preparations, there is an increased risk of multiple gestations (Multiple birth).
- There has been no reports of hypersensitivity to Recombinant FSH, but there remains the possibility of anaphylactic responses.
- The first injection of Recombinant FSH should be performed under direct medical supervision.
- Since infertile women undergoing assisted reproduction and particularly IVF, often have tubal abnormalities the incidence of ectopic pregnancies might be increased. Early ultrasound confirmation that a pregnancy is intrauterine is therefore important.
- Rates of pregnancy loss in women undergoing assisted reproduction techniques are higher than in the normal population.
- Unwanted ovarian hyperstimulation in the treatment of female patients, ultrasonographic assessment of follicular development, and determination of oestradiol levels should be performed prior to treatment and at regular intervals during treatment. Apart from the development of a high number of follicles, oestradiol levels may rise very rapidly, e.g. more than a daily doubling for two or three consecutive days, and possibly reaching excessively high values. The diagnosis of ovarian hyperstimulation may be confirmed by ultrasound examination. If this unwanted ovarian hyperstimulation occurs (i.e. not as part of controlled ovarian hyperstimulation in medically assisted reproduction programs), the administration of Recombinant FSH should be discontinued. In that case pregnancy should be avoided and HCG must be withheld, because it may induce in addition to multiple ovulation, the Ovarian Hyperstimulation Syndrome (OHSS).
- In men, semen analysis is recommended 4 to 6 months after the beginning of treatment in assessing the response.
Pregnancy & lactationView
Pregnancy category X. Recombinant FSH must not be used during pregnancy and lactation.
Overdose effectsView
No data on acute toxicity of Recombinant FSH in humans is available, but the acute toxicity of Recombinant FSH and of urinary gonadotrophin preparations in animal studies have been shown to be very low. Too high a dosage of Recombinant FSH may lead to hyperstimulation of the ovaries
ReconstitutionView
To prepare the solution, inject 1 ml water for injection into the vial of 75 IU rFSH. Do not shake, but gently swirl until the solution is clear. Generally, rFSH dissolves immediately. Check the liquid in the container; if it is not clear or contains particles, do not use it. For patients requiring a single injection from multiple vials of rFSH up to 3 vials can be reconstituted with 1 ml water for injection. This can be accomplished by reconstituting a single vial as described above. Then draw the entire contents of the first vial into a syringe and inject the contents into a second vial of lyophilized rFSH. Gently swirl the second vial, once again checking to make sure the solution is clear and free of particles. This step can be repeated with 1 additional vial for a total up to 4 vials (300 IU) of 75 IU rFSH.
StorageView
Store at 2°C-8°C (in refrigerator). Do not keep in deep freeze. Keep out of reach of children.