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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 gastroesophageal reflux disease (GERD).
* Maintenance of healing of erosive esophagitis.
* Treatment of pathological hypersecretory conditions, such as Zollinger-Ellison syndrome.
## Adult Dosing
* **Erosive esophagitis healing:** 40 mg orally once daily for up to 8 weeks.
* **Maintenance of healing:** 40 mg orally once daily.
* **Pathological hypersecretory conditions:** Starting dose is typically 40 mg orally twice daily. Doses may be increased as clinically needed. Doses up to 240 mg daily have been administered intravenously.
## Pediatric Dosing
Dosing varies by indication and age. Consult specific pediatric guidelines.
* **Erosive esophagitis (5 to 11 years):** 20 mg orally once daily for up to 8 weeks.
* **Erosive esophagitis (12 to 16 years):** 40 mg orally once daily for up to 8 weeks.
## Dose Adjustments
No dose adjustment is typically needed for renal impairment. Dose adjustment may be considered in severe hepatic impairment; however, specific recommendations are not well-established.
## Contraindications
Known hypersensitivity to pantoprazole or any component of the formulation.
## Adverse Effects
Common adverse effects include headache, diarrhea, nausea, abdominal pain, and dizziness. Long-term use may be associated with increased risk of bone fractures, Clostridium difficile infection, and vitamin B12 deficiency.
## Key Drug Interactions
* **Drugs requiring gastric acid for absorption:** PPIs can decrease absorption of drugs such as ketoconazole, itraconazole, and certain protease inhibitors (e.g., atazanavir).
* **Warfarin:** May increase INR and prothrombin time. Monitor INR closely.
* **Methotrexate:** PPIs may increase methotrexate levels, potentially leading to toxicity. Consider interrupting pantoprazole during methotrexate treatment if high doses are used.
## Monitoring
* Monitor for signs and symptoms of gastrointestinal infections.
* Consider monitoring vitamin B12 levels with prolonged therapy.
* Monitor bone mineral density in patients at risk for osteoporosis.
## Clinical Pearls
* Administer pantoprazole 30 minutes before a meal.
* Swallow delayed-release tablets whole; do not crush, chew, or split them.
* For patients unable to swallow intact tablets, the contents of the 40 mg delayed-release tablet can be mixed with 100 mL of applesauce or 100 mL of apples juice.
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**Disclaimer:** This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always verify current prescribing information and consult with a qualified healthcare provider for any health concerns or before making any treatment decisions.
