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# Pantoprazole
## Overview
Pantoprazole is a proton pump inhibitor (PPI) that decreases gastric acid production.
## Primary Indications
* Erosive esophagitis associated with gastroesophageal reflux disease (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 once daily for up to 8 weeks. For maintenance, 40 mg orally once daily.
* **Duodenal ulcers:** 40 mg orally once daily.
* **Hypersecretory conditions:** 40 mg orally twice daily, may be increased to 80 mg orally twice daily.
* **H. pylori eradication:** 40 mg orally twice daily in combination with clarithromycin and amoxicillin for 7-14 days.
## Pediatric Dosing
* **12 to 17 years:**
* Erosive esophagitis: 40 mg orally once daily for up to 4 weeks.
* Dosing for younger pediatric patients is not well established and should be individualized based on clinical response and physician judgment.
## Dose Adjustments
* No dose adjustment is typically necessary for renal impairment.
* For severe hepatic impairment, a dose of 20 mg orally once daily is recommended.
## Contraindications
* Known hypersensitivity to pantoprazole or any of its components.
## Adverse Effects
Common: Headache, diarrhea, nausea, abdominal pain, dizziness, fatigue.
Less common: Rash, pruritus, constipation, flatulence.
Serious: Clostridium difficile-associated diarrhea, bone fractures (hip, wrist, spine) with long-term use, hypomagnesemia, vitamin B12 deficiency.
## Key Drug Interactions
* Drugs affected by gastric pH: Ketoconazole, itraconazole, posaconazole, iron salts, mycophenolate mofetil.
* CYP2C19 substrates: May increase concentrations of certain drugs (e.g., clopidogrel).
## Monitoring
* Monitor for signs and symptoms of C. difficile infection.
* Consider monitoring serum magnesium levels with prolonged therapy (>3 months), especially in patients taking diuretics or digoxin.
* Monitor for signs of bone fracture with long-term use.
## Clinical Pearls
* Administer 30-60 minutes before a meal.
* Do not crush or chew delayed-release tablets; they should be swallowed whole.
* If a dose is missed, take it as soon as remembered. If it is close to the time of the next dose, skip the missed dose and resume the regular dosing schedule. Do not double doses.
* Long-term PPI use is associated with potential risks; consider the shortest effective duration of therapy.
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*Disclaimer: This information is intended for healthcare professionals. It is essential to consult the most current prescribing information and relevant clinical guidelines before making any treatment decisions. Dosing may vary based on individual patient factors and local protocols.*
