Pantoprazole (PANTOLOC): Difference between revisions
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==Common Strengths of Pantoprazole tablet== | ==Common Strengths of Pantoprazole tablet== | ||
Pantoprazole | Pantoprazole tablets are available in the following strengths: | ||
*20 mg delayed-release oral tablets | *20 mg delayed-release oral tablets | ||
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Pantoprazole is used for: | Pantoprazole is used for: | ||
Gastric ulcer, duodenal ulcer | |||
Treatment of gastroesophageal reflux disease (GERD) | |||
Prevention of gastric damage in patients taking NSAIDs | |||
Zollinger-Ellison syndrome (and other hypersecretory conditions) | |||
Eradication of Helicobacter pylori | |||
==Mechanism of Action== | ==Mechanism of Action== | ||
Inhibits (H+/K+ )-ATPase enzyme in the gastric parietal cells, blocking gastric acid production in the stomach | Inhibits (H+/K+ )-ATPase enzyme in the gastric parietal cells, blocking the final step of gastric acid production in the stomach, significantly reducing gastric acidity for up to 24 hours or more. | ||
==Route of Administration== | ==Route of Administration== | ||
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==Dosages == | ==Dosages == | ||
Gastric ulcer, duodenal ulcer: By intravenous injection, or by intravenous infusion 40mg daily until oral administration can be resumed | |||
Gastric ulcer, duodenal ulcer: By mouth, 40 mg daily; increased if necessary up to 80mg daily | |||
GERD: 20-80 mg daily for 4 weeks, continue for further 4 weeks if not fully healed, dose to be taken in the morning; maintenance 20 mg daily and increased to 40 mg daily, increased only if symptoms return | |||
Propylaxis of NSAID-associated ulcer: 20 mg daily | |||
Zollinger-Ellison syndrome (and other hypersecretory conditions): intially 80 mg daily, adjusted according to response | |||
Helicobacter pylori eradication: 40 mg twice daily | |||
==Renal Dose Adjustments== | ==Renal Dose Adjustments== | ||
There are no specific renal dose adjustments recommended based on estimated glomerular filtration rate (eGFR) for pantoprazole; however, caution should be exercised in severe renal impairment. | There are no specific renal dose adjustments recommended based on the estimated glomerular filtration rate (eGFR) for pantoprazole; however, caution should be exercised in severe renal impairment. | ||
==Side Effects== | ==Side Effects== | ||
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| Flatulence | | Flatulence | ||
|- | |- | ||
| rowspan=5 | '''Serious Side Effects | | rowspan=5 | '''Serious Side Effects of long-term use | ||
|- | |- | ||
| | | Osteoporosis-related fractures | ||
|- | |- | ||
| Clostridium difficile infection | | Clostridium difficile infection | ||
|- | |- | ||
| | | Low blood magnesium and Vit B12 | ||
|- | |- | ||
| | | Acute Interstitial Nephritis | ||
|} | |} | ||
==Pharmacokinetics== | ==Pharmacokinetics== | ||
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==Drug Precautions== | ==Drug Precautions== | ||
Pregnancy: | Pregnancy: avoid unless the potential benefit outweighs risk | ||
Breastfeeding: | Breastfeeding: void unless the potential benefit outweighs risk | ||
Children and Elderly: Use in children over 5 years is generally safe; elderly patients may require monitoring due to the potential increased risk of side effects. | Children and Elderly: Use in children over 5 years is generally safe; elderly patients may require monitoring due to the potential increased risk of side effects such as bone fractures, kidney problems, and Clostridium difficile infection. | ||
==Monitoring Items== | ==Monitoring Items== | ||
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==Drug Interactions== | ==Drug Interactions== | ||
Drug Interactions: Pantoprazole | Drug Interactions: can interact with other medications primarily through two mechanisms: | ||
*Alteration of Gastric pH: Pantoprazole increases gastric pH, which can affect the solubility and absorption of drugs that require an acidic environment for optimal absorption. For example, drugs like ketoconazole and atazanavir have significantly reduced bioavailability when taken with PPIs due to this pH alteration. | |||
*Inhibition of Cytochrome P450 Enzymes: which can lead to increased plasma concentrations of drugs metabolized by these pathways. This is particularly relevant for medications such as warfarin, clopidogrel, and certain antiepileptics like phenytoin. | |||
*Methotrexate: Pantoprazole can affect the pharmacokinetics of methotrexate, potentially leading to increased toxicity. | |||
Summary of Key Drug Interactions: | |||
*Clopidogrel: Reduced effectiveness; increased cardiovascular risk | |||
*Warfarin: Increased anticoagulation effect; monitor INR | |||
*Methotrexate: Increased toxicity risk; monitor renal function | |||
*Phenytoin: Altered metabolism; monitor drug levels. | |||
*Atazanavir: Reduced bioavailability; consider alternatives | |||
==FAQ== | ==FAQ== | ||
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'''How should I take the tablet? | '''How should I take the tablet? | ||
Take pantoprazole before meals, swallowing the tablet whole without crushing or chewing | Take pantoprazole on an empty stomach, ideally 30 minutes before meals, swallowing the tablet whole without crushing or chewing. Consuming them with food may reduce their effectiveness. | ||
'''What should I avoid while taking? | '''What should I avoid while taking? | ||
Limit or avoid highly acidic foods and drinks like coffee and soda | |||
'''What happens if I miss a dose? | '''What happens if I miss a dose? | ||
Take as soon as remembered unless close to next dose; do not double up on doses | Take as soon as remembered unless close to next dose; do not double up on doses | ||
Latest revision as of 00:47, 12 January 2025
Drug class: Proton Pump Inhibitors (PPI)
Pantoprazole (中文: 泮托拉唑)
Drug Class[edit]
Proton Pump Inhibitor (PPI)
Common Strengths of Pantoprazole tablet[edit]
Pantoprazole tablets are available in the following strengths:
- 20 mg delayed-release oral tablets
- 40 mg delayed-release oral tablets
- Intravenous (IV) formulation for injection
Drug Trade Name of Pantoprazole tablet[edit]
PANTOLOC
Drug Usage[edit]
Pantoprazole is used for:
Gastric ulcer, duodenal ulcer
Treatment of gastroesophageal reflux disease (GERD)
Prevention of gastric damage in patients taking NSAIDs
Zollinger-Ellison syndrome (and other hypersecretory conditions)
Eradication of Helicobacter pylori
Mechanism of Action[edit]
Inhibits (H+/K+ )-ATPase enzyme in the gastric parietal cells, blocking the final step of gastric acid production in the stomach, significantly reducing gastric acidity for up to 24 hours or more.
Route of Administration[edit]
Oral and intravenously (injection)
Dosages[edit]
Gastric ulcer, duodenal ulcer: By intravenous injection, or by intravenous infusion 40mg daily until oral administration can be resumed
Gastric ulcer, duodenal ulcer: By mouth, 40 mg daily; increased if necessary up to 80mg daily
GERD: 20-80 mg daily for 4 weeks, continue for further 4 weeks if not fully healed, dose to be taken in the morning; maintenance 20 mg daily and increased to 40 mg daily, increased only if symptoms return
Propylaxis of NSAID-associated ulcer: 20 mg daily
Zollinger-Ellison syndrome (and other hypersecretory conditions): intially 80 mg daily, adjusted according to response
Helicobacter pylori eradication: 40 mg twice daily
Renal Dose Adjustments[edit]
There are no specific renal dose adjustments recommended based on the estimated glomerular filtration rate (eGFR) for pantoprazole; however, caution should be exercised in severe renal impairment.
Side Effects[edit]
| Frequency | Adverse reactions |
|---|---|
| Common Side Effects | |
| Diarrhea | |
| Abdominal pain | |
| Nausea | |
| Vomiting | |
| Flatulence | |
| Serious Side Effects of long-term use | |
| Osteoporosis-related fractures | |
| Clostridium difficile infection | |
| Low blood magnesium and Vit B12 | |
| Acute Interstitial Nephritis |
Pharmacokinetics[edit]
Onset Time: Effects can be observed within 2 to 3 hours after oral administration.
Duration of Action: The acid-suppressive effect lasts approximately 24 hours.
Drug Precautions[edit]
Pregnancy: avoid unless the potential benefit outweighs risk
Breastfeeding: void unless the potential benefit outweighs risk
Children and Elderly: Use in children over 5 years is generally safe; elderly patients may require monitoring due to the potential increased risk of side effects such as bone fractures, kidney problems, and Clostridium difficile infection.
Monitoring Items[edit]
Regular monitoring of magnesium and vitamin B12 levels
Drug Interactions[edit]
Drug Interactions: can interact with other medications primarily through two mechanisms:
- Alteration of Gastric pH: Pantoprazole increases gastric pH, which can affect the solubility and absorption of drugs that require an acidic environment for optimal absorption. For example, drugs like ketoconazole and atazanavir have significantly reduced bioavailability when taken with PPIs due to this pH alteration.
- Inhibition of Cytochrome P450 Enzymes: which can lead to increased plasma concentrations of drugs metabolized by these pathways. This is particularly relevant for medications such as warfarin, clopidogrel, and certain antiepileptics like phenytoin.
- Methotrexate: Pantoprazole can affect the pharmacokinetics of methotrexate, potentially leading to increased toxicity.
Summary of Key Drug Interactions:
- Clopidogrel: Reduced effectiveness; increased cardiovascular risk
- Warfarin: Increased anticoagulation effect; monitor INR
- Methotrexate: Increased toxicity risk; monitor renal function
- Phenytoin: Altered metabolism; monitor drug levels.
- Atazanavir: Reduced bioavailability; consider alternatives
FAQ[edit]
How should I take the tablet?
Take pantoprazole on an empty stomach, ideally 30 minutes before meals, swallowing the tablet whole without crushing or chewing. Consuming them with food may reduce their effectiveness.
What should I avoid while taking?
Limit or avoid highly acidic foods and drinks like coffee and soda
What happens if I miss a dose?
Take as soon as remembered unless close to next dose; do not double up on doses
