Pantoprazole + Ondansetron Pharmacology

Pantoprazole + Ondansetron

About Pantoprazole + Ondansetron
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Mechanism of Action of Pantoprazole + Ondansetron
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Pharmacokinets of Pantoprazole + Ondansetron
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Onset of Action for Pantoprazole + Ondansetron
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Duration of Action for Pantoprazole + Ondansetron
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Half Life of Pantoprazole + Ondansetron
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Side Effects of Pantoprazole + Ondansetron
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Contra-indications of Pantoprazole + Ondansetron
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Special Precautions while taking Pantoprazole + Ondansetron
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Pregnancy Related Information
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Old Age Related Information
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Breast Feeding Related Information
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Children Related Information
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Indications for Pantoprazole + Ondansetron
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Interactions for Pantoprazole + Ondansetron
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Typical Dosage for Pantoprazole + Ondansetron
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Schedule of Pantoprazole + Ondansetron
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Storage Requirements for Pantoprazole + Ondansetron
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Effects of Missed Dosage of Pantoprazole + Ondansetron
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Effects of Overdose of Pantoprazole + Ondansetron
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Pantoprazole

About Pantoprazole
A proton pump inhibitor, Benzimidazole derivative, Anti ulcer.
Mechanism of Action of Pantoprazole
Pantoprazole is a proton pump inhibitor. It is a prodrug. After administration it diffuses in to the parietal cell of the stomach and accumulates in the secretory canaliculi. In the acidic medium Pantoprazole is converted to sulfenamide. This sulfenamide covalently interacts with sulfhydryl (SH) group in the proton pump
(H+ K+ATPase) and inhibits the exchange of extracellular K+ for intracellular H+ ion. Pantoprazole irreversibly inhibits proton pumps activity and decreases gastric acid secretion. Pantoprazole is more acid stable and its activity is lowered in higher pH. It is the only proton pump inhibitor which is available as parenteral form.



Pharmacokinets of Pantoprazole
Absorption: Pantoprazole is well absorbed after oral administration. Its bioavailability is about 77% since it`s undergoes first pass metabolism.
Distribution: It is widely distributed in the body in protein bound form.
Metabolism: Pantoprazole is extensively metabolised in the liver.
Excretion: It is excreted mainly in the urine and small amount in faeces.
Onset of Action for Pantoprazole
2-4 hours
Duration of Action for Pantoprazole
1 day
Half Life of Pantoprazole
60 minutes
Side Effects of Pantoprazole
1. Diarrhoea
2. Nausea
3. Vomiting
4. Headache
5. Flatulence
6. Abdominal pain
7. Pruritis
8. Dizziness
9. Rash

Contra-indications of Pantoprazole
1. Hypersensitivity to Pantoprazole
Special Precautions while taking Pantoprazole
1. Hepatic impairment
2. Monitor liver function
3. Avoid prolonged use
Pregnancy Related Information
Contraindicated
Old Age Related Information
Use with caution
Breast Feeding Related Information
Contraindicated.
Children Related Information
Use with caution
Below 12 years : Contraindicated
Indications for Pantoprazole
1. Duodenal ulcer
2. Benign Gastric ulcer
3. Zollinger- Ellison syndrome
4. Gastroesophageal reflux disease
Interactions for Pantoprazole
Phenazone (antipyrine), diazepam, digoxin, theophylline, carbamazepine, diclofenac, phenprocoumon, phenytoin, warfarin, nifedipine, caffeine, metoprolol or ethanol : No clinically relevant interaction at therapeutic doses.
Oral contraceptives : Does not appear to compromise hormonal contraceptive efficacy as no interaction with a low dose combined oral contraceptive has been seen.
Typical Dosage for Pantoprazole
Oral :
Adult: 20-40mg / day before breakfast.
Duodenal ulcer: 40mg / day to be taken before breakfast for 2 - 4 weeks.
Benign Gastric ulcer: 40mg / day to be taken before breakfast for 1 - 2months.
Zollinger- Ellison syndrome: 80 mg / day in 2 divided doses increase the dose to 240 mg/ day if needed.
Gastroesophageal reflux disease: 20 - 40 mg / day to be taken before breakfast for 1 month and continue the treatment for 1 more month if needed.
Parenteral: 40 mg once daily as IV injection over 15 minutes.
Children below 12 years : Not recommended
Schedule of Pantoprazole
H
Storage Requirements for Pantoprazole
Store at 15 - 30 degree C in a tightly closed container. Protect from light.
Effects of Missed Dosage of Pantoprazole
Take the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.
Effects of Overdose of Pantoprazole
Give supportive measures and symptomatic treatment.

Ondansetron

About Ondansetron
Selective serotonin 5-HT3 receptor antagonist, Imidazole derivative, Antiemetic.
Mechanism of Action of Ondansetron
Ondansetron is a selective 5HT3 receptor antagonist. 5HT3 receptors are present in vagal nerve terminals and chemoreceptor trigger zone of area postrema of the brain.
Cytotoxic chemotherapy is associated with release of Serotonin from Enterochromaffin cells in the small intestine. Serotonin triggers vomiting through 5HT3 vagal receptor that activates the vomiting reflex. Since Ondansetron is a 5HT3 receptor antagonist, it is indicated for the prevention of nausea and vomiting associated in chemotherapy.
Anaesthetic adjuncts: It is used preoperatively in order to reduce the post operative vomiting.

Pharmacokinets of Ondansetron
Absorption: Ondansetron is well absorbed after oral administration and the bioavailability is 50 - 60 %.
Distribution: It is distributed in protein bound form.
Metabolism: Ondansetron is extensively metabolised in the liver.
Excretion: It is excreted mainly in urine.
Onset of Action for Ondansetron
With in 30 minutes
Duration of Action for Ondansetron
8 - 10 hours
Half Life of Ondansetron
4 - 6 hours
Side Effects of Ondansetron
1. Headache
2. Dizziness
3. Constipation
4. Musculoskeletal pain
5. Chills
6. Allergic reactions
7. Agitation
8. Chest pain
9. Malaise
10. Urinary retention
11. Elevation in hepatic enzymes
12. Hypotension

Contra-indications of Ondansetron
1. Hypersensitivity to Ondansetron
Special Precautions while taking Ondansetron
1. Hepatic impairment
2. Intestinal obstruction
Pregnancy Related Information
Contraindicated
Old Age Related Information
May be used
Breast Feeding Related Information
Use with caution
Children Related Information
Use with caution
Below 6 months : Contraindicated
Indications for Ondansetron
1. Nausea and vomiting associated with cytotoxic chemotherapy or radiotherapy.
2. Post operative nausea and vomiting
Interactions for Ondansetron
Inducers of hepatic cytochrome P450 drug metabolising enzymes: May change the clearance and hence the half-life of ondansetron, but on the basis of available data there is no need to adjust the dose of ondansetron.
Typical Dosage for Ondansetron
Adult:
Oral :
Nausea and vomiting associated with cytotoxic chemotherapy or radiotherapy:8 mg should be given 1 - 2 hour before chemotherapy or radiotherapy and repeat the same dose after the procedure every 12 hours for 1 - 2 days.
Post operative nausea and vomiting: 16 mg should be given 1 hour before anesthesia or soon after operation
IV Injection :
Nausea and vomiting associated with cytotoxic chemotherapy or radiotherapy: 0.15 mg / kg IV infusion over 15 minutes should be given half an hour before starting treatment and repeat the same dose 4th and 8th hour after first dose or a single dose of 32 mg IV infusion over 15 minutes should be given half an hour before starting the treatment.
Post operative nausea and vomiting: 4 mg IV should be given immediately before anesthesia or soon after operation
Children :
Oral :
Nausea and vomiting associated with cytotoxic chemotherapy or radiotherapy:8 mg should be given 1 - 2 hour before chemotherapy or radiotherapy and repeat the same dose after the procedure every 12 hours for 1 - 2 days
Injection:
Nausea and vomiting associated with cytotoxic chemotherapy or radiotherapy:0.15 mg / kg IV infusion over 15 minutes should be given half an hour before starting treatment and repeat the same dose 4th and 8th hour after first dose
Children below 2 years: 0.1 mg / kg body weight as IV infusion
Maximum dose: 4 mg



Schedule of Ondansetron
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Storage Requirements for Ondansetron
Store at room temperature. Protect from heat and light. Keep out of the reach of children.
Effects of Missed Dosage of Ondansetron
If you missed a dose and do not feel nauseated then skip the missed dose and go back regular schedule.
If you missed a dose and feel nauseated then take the missed dose as soon as possible.
Effects of Overdose of Ondansetron
Give supportive measures and symptomatic treatment.

Home Delivery for Pantoprazole + Ondansetron in Your City

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Pantoprazole + Ondansetron is a generic medicine name and there are several brands available for it. Some of the brands for pantoprazole + ondansetron might be better known than pantoprazole + ondansetron itself. If the pharmacy that's willing to deliver medicines to your home doesn't have pantoprazole + ondansetron in stock, you can ask for one of the branded alternatives for pantoprazole + ondansetron.