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# Pantoprazole
## Overview
Pantoprazole is a proton pump inhibitor (PPI) that suppresses gastric acid secretion.
## Primary Indications
* Gastroesophageal reflux disease (GERD)
* Healing of erosive esophagitis
* Treatment of *Helicobacter pylori* infection (in combination with antibiotics)
* Prophylaxis of NSAID-induced gastric ulcers
## Adult Dosing
* **GERD and Erosive Esophagitis:** 20 mg to 40 mg orally or intravenously once daily. Maximum 40 mg daily for maintenance.
* ***H. pylori* Eradication (Triple Therapy):** 40 mg orally twice daily, in combination with clarithromycin and amoxicillin, for 7 to 14 days.
* **NSAID-induced Gastric Ulcers:** 40 mg orally once daily.
## Pediatric Dosing
Dosing in pediatric patients varies by indication and age. Consult specific pediatric guidelines.
* **GERD (6 months to 16 years):** 0.7 mg/kg to 1.5 mg/kg orally once daily, not to exceed 40 mg daily.
## Dose Adjustments
* **Hepatic Impairment:** Maximum daily dose of 20 mg orally or 40 mg intravenously.
## Contraindications
* Hypersensitivity to pantoprazole or any component of the formulation.
* Concomitant use with rilpivirine.
## Adverse Effects
Common adverse effects include headache, diarrhea, nausea, abdominal pain, and dizziness. Long-term use may be associated with an increased risk of *Clostridium difficile*-associated diarrhea, bone fractures, hypomagnesemia, and vitamin B12 deficiency.
## Key Drug Interactions
* **Drugs requiring gastric acid for absorption:** Ketoconazole, itraconazole, iron salts, and certain HIV protease inhibitors (e.g., atazanavir, nelfinavir) may have reduced absorption.
* **Warfarin:** May increase INR and prothrombin time. Monitor INR closely.
* **Methotrexate:** PPIs may increase methotrexate levels, potentially leading to toxicity. Consider interruption of pantoprazole if high-dose methotrexate is used.
## Monitoring
* Monitor for clinical improvement of symptoms.
* Monitor electrolytes (especially magnesium) with prolonged therapy.
* Monitor for signs and symptoms of *Clostridium difficile* infection.
* Monitor bone mineral density in patients at risk for osteoporosis.
## Clinical Pearls
* Administer 30 minutes before a meal for optimal efficacy.
* For IV administration, reconstitute and dilute as per manufacturer instructions; infuse over 15 minutes.
* IV formulation is not interchangeable with oral formulation on a mg-to-mg basis for some indications.
* Long-term use should be reserved for patients who require ongoing acid suppression.
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**Disclaimer:** This information is intended for healthcare professionals and does not substitute for professional medical advice. Always consult the most current prescribing information or other authoritative sources for complete and up-to-date details before making any treatment decisions.
