Injection pan 40 dose
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pantoprazole 40mg injection dose indications IV administration
Pantoprazole 40 mg Injection - Complete Dosing Guide
Drug Class
Proton Pump Inhibitor (PPI) - irreversibly inhibits the H+/K+-ATPase (acid pump) in gastric parietal cells.
Indications & Doses
| Indication | Dose | Route | Duration |
|---|---|---|---|
| GERD / Erosive Esophagitis (when oral not possible) | 40 mg once daily | IV | Up to 7-10 days; switch to oral as soon as possible |
| Pathological hypersecretion (e.g., Zollinger-Ellison Syndrome) | 80 mg every 12 hours (may go up to 80 mg every 8 hours) | IV | Up to 7 days; switch to oral |
| Upper GI bleed (off-label, common in practice) | 80 mg IV bolus, then 8 mg/hr infusion | IV infusion | 72 hours |
| Duodenal ulcer (oral only) | 40 mg once daily | PO | 2 weeks |
| Gastric ulcer (oral only) | 40 mg once daily | PO | 4 weeks |
How to Administer (IV)
- Reconstitution: Each vial (40 mg) reconstituted with 10 mL of 0.9% Normal Saline → ~4 mg/mL solution.
- 2-minute IV injection: Give the reconstituted 10 mL directly over at least 2 minutes.
- 15-minute IV infusion: Further dilute in 100 mL NS/D5W, infuse over 15 minutes.
- Do NOT mix with other medications in the same line.
Pharmacokinetics
- Onset of acid suppression: within 1-2 hours of IV dose.
- Half-life: ~1 hour (but acid suppression lasts 24+ hours due to irreversible pump binding).
- Hepatic metabolism (CYP2C19, CYP3A4); dose adjustment needed in severe hepatic impairment (max 40 mg/day, avoid daily use).
- No renal dose adjustment needed.
Key Precautions
- Hypersensitivity to pantoprazole or other substituted benzimidazoles - contraindicated.
- Warfarin interaction - may increase INR; monitor closely.
- Methotrexate - pantoprazole can increase MTX serum levels.
- Zinc deficiency risk with prolonged use.
- Long-term use risks: C. difficile infection, hypomagnesaemia, bone fractures, vitamin B12 deficiency.
- False-positive urine THC screen possible.
- Symptomatic relief does NOT rule out gastric malignancy - investigate appropriately.
Special Populations
- Pregnancy: Use only if clearly needed (limited data).
- Breastfeeding: Excreted in breast milk - weigh risk vs benefit.
- Pediatric: IV form not established for GI bleeding in children.
- Geriatric: No dose adjustment needed.
The FDA prescribing information for pantoprazole injection and Drugs.com full monograph have complete details.
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