Pantop%25252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252520ds

# Pantoprazole ## Overview Pantoprazole is a proton pump inhibitor (PPI) that reduces gastric acid production. ## Primary Indications * Erosive esophagitis associated with GERD. * Pathological hypersecretory conditions (e.g., Zollinger-Ellison syndrome). * Healing of duodenal ulcers. * Maintenance of healing of erosive esophagitis and duodenal ulcers. * H. pylori eradication (in combination with antibiotics). ## Adult Dosing * **Erosive Esophagitis:** 40 mg orally or IV once daily. Duration of treatment is typically 4-8 weeks. * **Maintenance of Healing of Erosive Esophagitis:** 40 mg orally once daily. For patients who are at risk of recurrence, 20 mg orally once daily may be considered. * **Duodenal Ulcers:** 40 mg orally once daily. Healing is usually achieved within 4 weeks. * **Pathological Hypersecretory Conditions:** Starting dose is 40 mg orally or IV twice daily. Doses can be increased as needed. Doses up to 240 mg IV daily have been administered. * **H. pylori Eradication:** 40 mg orally twice daily for 7-14 days in combination with specific antibiotics (e.g., amoxicillin and clarithromycin). ## Pediatric Dosing * **Erosive Esophagitis (12 years and older):** 40 mg orally once daily for 4-8 weeks. * **Erosive Esophagitis (5-11 years):** 20 mg orally once daily for up to 8 weeks. * **H. pylori Eradication (5 years and older):** Dosing is complex and depends on weight and specific regimen. Consult specific pediatric guidelines. ## Dose Adjustments * **Hepatic Impairment:** Maximum dose of 40 mg orally once daily. IV formulation is not recommended. * **Renal Impairment:** No dose adjustment is typically necessary. ## Contraindications * Known hypersensitivity to pantoprazole or any component of the formulation. * Concurrent use with rilpivirine-containing products. ## Adverse Effects * **Common:** Headache, diarrhea, nausea, abdominal pain, dizziness, flatulence. * **Serious:** Severe hypersensitivity reactions, *Clostridioides difficile*-associated diarrhea, bone fractures (hip, wrist, spine) with long-term use, vitamin B12 deficiency with long-term use, hypomagnesemia with long-term use, fundic gland polyps. ## Key Drug Interactions * **Drugs Dependent on Gastric pH for Absorption:** Pantoprazole can decrease absorption of drugs like ketoconazole, itraconazole, iron salts, and vitamin B12. * **CYP2C19 Substrates:** Pantoprazole may increase plasma concentrations of drugs metabolized by CYP2C19 (e.g., clopidogrel, warfarin, phenytoin, diazepam). Monitor for increased effect or toxicity. * **Methotrexate:** Concomitant use with PPIs may increase methotrexate levels. * **Rilpivirine:** Concomitant use is contraindicated due to increased risk of virologic failure. ## Monitoring * **For long-term use:** Monitor for signs and symptoms of vitamin B12 deficiency, hypomagnesemia, and bone fractures. * **If concurrently used with other interacting medications:** Monitor for altered efficacy or toxicity of those medications. ## Clinical Pearls * Administer orally 30-60 minutes before a meal. * IV administration is an option when oral route is not feasible. * Long-term use of PPIs should be for the shortest duration necessary to manage the condition. * Consider alternative therapies for patients with risk factors for osteoporosis or vitamin B12 deficiency. *** *Disclaimer: This information is intended for healthcare professionals. Always consult the most current prescribing information and relevant clinical guidelines before making treatment decisions.*