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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, including Zollinger-Ellison syndrome.
## Adult Dosing
* **Healing of erosive esophagitis:** 40 mg orally once daily for up to 8 weeks.
* **Maintenance of healing of erosive esophagitis:** 40 mg orally once daily. May be given 20 mg orally once daily.
* **Pathological hypersecretory conditions:** Starting dose is 40 mg orally twice daily. Doses may be increased as clinically needed. Doses above 100 mg daily should be divided and administered twice daily.
## Pediatric Dosing
* **Erosive esophagitis (12 to 17 years):** 40 mg orally once daily for up to 4 weeks. If not fully healed, may be continued for up to 8 weeks.
* Dosing for children younger than 12 years is not established.
## Dose Adjustments
* No dose adjustment is typically required for hepatic or renal impairment, though caution may be warranted in severe hepatic impairment.
## Contraindications
* Known hypersensitivity to pantoprazole, substituted benzimidazoles, or any component of the formulation.
## Adverse Effects
Common adverse effects include diarrhea, headache, nausea, abdominal pain, and dizziness. Long-term use of PPIs may be associated with an increased risk of bone fractures (hip, wrist, spine), C. difficile infection, hypomagnesemia, and vitamin B12 deficiency.
## Key Drug Interactions
* **Clopidogrel:** Pantoprazole may decrease the efficacy of clopidogrel. Avoid concurrent use or monitor closely.
* **Methotrexate:** PPIs may increase methotrexate levels. Consider holding pantoprazole during methotrexate treatment if high doses are used.
* **Drugs dependent on gastric pH for absorption:** Pantoprazole may alter absorption of drugs such as ketoconazole, itraconazole, iron salts, and vitamin B12.
## Monitoring
* Monitor for signs and symptoms of hypomagnesemia (e.g., muscle spasms, seizures, tremors, arrhythmias), particularly with long-term use or concurrent use of other drugs that lower magnesium levels.
* Monitor for efficacy in symptom relief and healing of esophagitis.
* Consider monitoring vitamin B12 levels with prolonged therapy.
## Clinical Pearls
* Pantoprazole is generally administered 30 to 60 minutes before a meal.
* For patients unable to swallow whole tablets, pantoprazole delayed-release orally disintegrating tablets are available, or the delayed-release oral suspension can be used.
* When administering the oral suspension, shake well and administer immediately. Do not mix with other liquids.
* Due to the potential for drug interactions and adverse effects, use the lowest effective dose for the shortest duration necessary.
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*Disclaimer: This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always consult with a qualified healthcare provider and refer to the most current prescribing information for any medication.*
