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# Pantoprazole
## Overview
Pantoprazole is a proton pump inhibitor (PPI) that suppresses gastric acid secretion.
## Primary Indications
* Erosive esophagitis associated with GERD
* Pathological hypersecretory conditions (e.g., Zollinger-Ellison syndrome)
* Maintenance of healing of erosive esophagitis
* Treatment of heartburn and acid indigestion (OTC)
## Adult Dosing
* **Erosive esophagitis:** 40 mg orally once daily for up to 8 weeks.
* **Maintenance of healing:** 40 mg orally once daily.
* **Pathological hypersecretory conditions:** Starting dose 40 mg orally twice daily; may increase as needed. Doses up to 240 mg daily have been administered.
* **Heartburn (OTC):** 20 mg orally once daily for up to 14 days.
## Pediatric Dosing
* **Erosive esophagitis:**
* 1 to <5 years: 10 mg orally once daily for up to 8 weeks.
* 5 to <12 years: 20 mg orally once daily for up to 8 weeks.
* ≥12 years: 40 mg orally once daily for up to 8 weeks.
* **GERD symptom relief:**
* 5 to <12 years: 15 mg orally once daily for up to 8 weeks.
* ≥12 years: 40 mg orally once daily for up to 8 weeks.
## Dose Adjustments
* **Hepatic impairment:** Maximum daily dose is 40 mg orally once daily.
* **Renal impairment:** No dose adjustment necessary.
## Contraindications
* Known hypersensitivity to pantoprazole or any component of the formulation.
## Adverse Effects
* **Common:** Diarrhea, headache, dizziness, abdominal pain, nausea, flatulence.
* **Serious:** *Clostridium difficile*-associated diarrhea, bone fractures (hip, wrist, spine) with long-term use, hypomagnesemia, vitamin B12 deficiency, potential for fundic gland polyps.
## Key Drug Interactions
* **Clopidogrel:** Pantoprazole may decrease the efficacy of clopidogrel. Consider alternative PPIs or separate administration by at least 12 hours if concomitant use is necessary.
* **Methotrexate:** PPIs may increase methotrexate levels. Consider holding PPI therapy during methotrexate treatment.
* **Drugs dependent on gastric pH for absorption:** (e.g., ketoconazole, itraconazole, iron salts, vitamin B12). PPIs can decrease absorption.
## Monitoring
* Monitor for signs and symptoms of *C. difficile*-associated diarrhea.
* Consider magnesium levels, especially with long-term therapy (>1 year) or concomitant diuretic use.
* Assess for vitamin B12 deficiency with prolonged use (>3 years).
* Bone mineral density screening may be considered in patients at risk for osteoporosis.
## Clinical Pearls
* Administer 30 minutes before a meal.
* Swallow delayed-release capsules or tablets whole; do not chew or crush.
* For patients who cannot swallow intact tablets, the delayed-release tablets can be dispersed in 100 mL of water or 100 mL of applesauce. Do not use other liquids or foods.
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*This information is intended for healthcare professionals. Always verify current prescribing information and consult with a qualified healthcare provider before making any treatment decisions.*
