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# Esomeprazole (Sompraz HP) ## Overview Esomeprazole is a proton pump inhibitor (PPI) used to reduce stomach acid production. ## Primary Indications * Healing of erosive esophagitis * Maintenance of healing of erosive esophagitis * Treatment of symptomatic gastroesophageal reflux disease (GERD) * Part of a multi-drug regimen for the eradication of *Helicobacter pylori* infection (in combination with antibiotics) ## Adult Dosing * **Healing of Erosive Esophagitis:** 20 mg or 40 mg orally once daily for up to 8 weeks. * **Maintenance of Healing of Erosive Esophagitis:** 20 mg orally once daily. * **Symptomatic GERD:** 20 mg orally once daily for up to 4 weeks. * ***H. pylori* Eradication:** 20 mg orally twice daily for 10 days, in combination with amoxicillin 1000 mg twice daily and clarithromycin 500 mg twice daily. (Alternative regimens exist). ## Pediatric Dosing * **Healing of Erosive Esophagitis:** * 1 to 11 years: 10 mg orally once daily for 8 weeks. * 12 to 17 years: 20 mg or 40 mg orally once daily for up to 8 weeks. * **Symptomatic GERD:** * 1 to 11 years: 10 mg orally once daily for up to 4 weeks. * 12 to 17 years: 20 mg orally once daily for up to 4 weeks. ## Dose Adjustments * **Hepatic Impairment:** * Severe hepatic impairment: Maximum dose of 20 mg once daily. ## Contraindications * Known hypersensitivity to esomeprazole, substituted benzimidazoles, or any component of the formulation. ## Adverse Effects Common: Headache, diarrhea, nausea, abdominal pain, constipation, flatulence. Serious: Vitamin B12 deficiency (long-term use), increased risk of Clostridium difficile-associated diarrhea, bone fractures (hip, wrist, spine) with long-term use, hypomagnesemia (can be severe), lupus erythematosus (cutaneous and systemic). ## Key Drug Interactions * **CYP2C19 and CYP3A4 Substrates:** Esomeprazole can increase concentrations of drugs metabolized by these enzymes (e.g., clopidogrel, voriconazole, certain antiretrovirals). Monitor for toxicity and consider dose adjustments. * **Drugs Affected by Gastric pH:** PPIs can affect absorption of drugs requiring acidic conditions (e.g., ketoconazole, itraconazole, iron salts, vitamin B12). * **Methotrexate:** Esomeprazole may increase methotrexate levels. * **St. John's Wort, Rifampin:** May decrease esomeprazole levels. ## Monitoring * Monitor for signs and symptoms of vitamin B12 deficiency with prolonged use. * Monitor electrolytes, especially magnesium, with prolonged therapy or in patients taking other medications that can cause hypomagnesemia. * Monitor bone mineral density in patients at risk for osteoporosis. ## Clinical Pearls * Administer at least 1 hour before meals for optimal efficacy. * Capsules can be opened and the contents mixed with applesauce and taken immediately. Do not crush or chew intact capsules. * For IV administration, reconstitute and dilute as per manufacturer instructions. * Long-term use is associated with increased risk of fractures, vitamin B12 deficiency, and C. difficile infection. Consider the shortest duration of therapy appropriate for the condition being treated. *** **Disclaimer:** This information is intended for healthcare professionals and is not a substitute for professional medical advice. Always consult the most current prescribing information and relevant literature to ensure safe and effective use. Dosing and indications may vary based on local protocols and individual patient factors.