Pantop%252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252520ds

# Pantoprazole ## Overview Pantoprazole is a proton pump inhibitor (PPI) that reduces gastric acid production. ## 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 * **Erosive Esophagitis:** 40 mg orally or intravenously once daily for up to 8 weeks. A subsequent 8-week course may be considered for patients who have not healed. * **Maintenance of Healing:** 40 mg orally once daily. * **Pathological Hypersecretory Conditions (e.g., Zollinger-Ellison Syndrome):** Start with 40 mg orally or intravenously once daily. Doses may be titrated up to 240 mg intravenously daily or 160 mg orally daily, divided into two doses. Maximum daily oral dose is 240 mg. Maximum daily IV dose is 240 mg infused over 15 minutes. ## Pediatric Dosing * **12 to 17 years:** * **Erosive Esophagitis:** 40 mg orally once daily for up to 8 weeks. * **5 to 11 years:** * **Erosive Esophagitis:** 20 mg orally once daily for up to 8 weeks. If needed, may increase to 40 mg once daily. * *Dosing for younger children is not established.* ## Dose Adjustments No specific dose adjustments are required for renal impairment. For hepatic impairment, the recommended dose is 20 mg orally once daily. ## Contraindications * Known hypersensitivity to pantoprazole, any component of the formulation, or other substituted benzimidazoles. ## Adverse Effects Common adverse effects include headache, diarrhea, nausea, abdominal pain, and dizziness. ## Key Drug Interactions * **Antiretrovirals:** Pantoprazole can decrease the absorption of certain antiretrovirals (e.g., rilpivirine, atazanavir). * **Methotrexate:** PPIs may increase methotrexate levels, potentially leading to toxicity. * **CYP2C19 Substrates:** Pantoprazole is a moderate inhibitor of CYP2C19 and may increase systemic exposure to drugs metabolized by this enzyme (e.g., clopidogrel, voriconazole). ## Monitoring * Monitor for effectiveness in symptom relief. * Long-term PPI use has been associated with an increased risk of *Clostridium difficile*-associated diarrhea, bone fractures, hypomagnesemia, and vitamin B12 deficiency. Consider periodic assessment of magnesium levels, especially if the patient is on concurrent digoxin or other medications that may cause hypomagnesemia. ## Clinical Pearls * Oral pantoprazole should be taken at least 30 minutes before a meal. * Delayed-release tablets should be swallowed whole and not chewed or crushed. * The intravenous formulation is for short-term use. *** **Disclaimer:** This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always consult current prescribing information and relevant clinical guidelines for complete and up-to-date details.