Drug reference
lansoprazole
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Drug class
Gastrointestinal Tract (Proton Pump Inhibitors)
Mechanism of action
PPI; binds to H+/K+-exchanging ATPase (proton pump) in gastric parietal cells, resulting in suppression of basal and stimulated acid secretion. Relative Potency: 0.9.
Common side effects
- Constipation
- Headache
- Nausea
- Abdominal pain
- Diarrhea
Contraindications
- Hypersensitivity to lansoprazole or other proton pump inhibitors Coadministration with rilpivirine-containing products
Known interactions (3)
- erlotinib + lansoprazole Major
- domperidone + lansoprazole Moderate
- furosemide + lansoprazole Moderate
Related conditions
Frequently asked questions
What drug class is lansoprazole?
lansoprazole belongs to: Gastrointestinal Tract.
How does lansoprazole work?
PPI; binds to H+/K+-exchanging ATPase (proton pump) in gastric parietal cells, resulting in suppression of basal and stimulated acid secretion. Relative Potency: 0.9.
What are the common side effects of lansoprazole?
Constipation, Headache, Nausea, Abdominal pain, Diarrhea
Which drugs interact with lansoprazole?
erlotinib, domperidone, furosemide
Full monographs, dosing and an interaction checker in the MediHelp app
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