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# Pantoprazole
## Overview
Pantoprazole is a proton pump inhibitor (PPI) that suppresses gastric acid secretion.
## Primary Indications
* Healing of erosive esophagitis associated with GERD.
* Maintenance of healing of erosive esophagitis.
* Treatment of pathological hypersecretory conditions (e.g., Zollinger-Ellison syndrome).
## Adult Dosing
* **Healing of erosive esophagitis:** 40 mg orally or intravenously once daily for up to 8 weeks.
* **Maintenance of healing of erosive esophagitis:** 40 mg orally once daily. For some patients, 20 mg orally once daily may be sufficient.
* **Pathological hypersecretory conditions:** Dosing is individualized. Starting dose is typically 40 mg orally or intravenously twice daily. Doses may be increased to 240 mg per day if needed.
## Pediatric Dosing
* **Erosive esophagitis (12 years and older):** 40 mg orally once daily for up to 8 weeks.
* **Gastroesophageal reflux disease (GERD) (5 years to 11 years):** 20 mg orally once daily for up to 8 weeks.
* **Gastroesophageal reflux disease (GERD) (less than 5 years):** Dosing is not established for this age group.
## Dose Adjustments
No dose adjustment is necessary for patients with hepatic or renal impairment.
## Contraindications
* Known hypersensitivity to pantoprazole or any component of the formulation.
## Adverse Effects
Common adverse effects include diarrhea, headache, dizziness, abdominal pain, and nausea. Long-term use may be associated with an increased risk of fractures (hip, wrist, spine), *Clostridium difficile*-associated diarrhea, vitamin B12 deficiency, and hypomagnesemia.
## Key Drug Interactions
* **Drugs dependent on gastric pH for absorption:** PPIs can decrease the absorption of drugs like ketoconazole, itraconazole, and certain HIV protease inhibitors.
* **Methotrexate:** Pantoprazole may increase and prolong plasma concentrations of methotrexate, potentially leading to toxicity.
* **Warfarin:** Pantoprazole may increase INR and prothrombin time in patients taking warfarin.
## Monitoring
* Monitor for symptoms of GERD and esophagitis.
* Consider monitoring magnesium levels, especially with prolonged use (>1 year) or concomitant diuretic use.
* Monitor for signs and symptoms of fractures and *Clostridium difficile*-associated diarrhea.
## Clinical Pearls
* Pantoprazole should be taken at least 30 minutes before a meal.
* Intravenous administration requires reconstitution and dilution; consult specific product labeling for preparation and administration instructions.
* Short-term use is generally recommended to minimize potential long-term risks.
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**Disclaimer:** This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always consult the most current prescribing information and relevant literature for complete details, including risks and benefits, before making any treatment decisions.
