Drug reference
famotidine
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 (H2-Receptor Blockers)
Mechanism of action
Blocks H2 receptors of gastric parietal cells, leading to inhibition of gastric secretions, Relative Potency: 20-50.
Common side effects
- Constipation
- Dizziness
- Headache
- Diarrhea
Contraindications
- Hypersensitivity to famotidine or other H2-receptor antagonists
Known interactions (1)
- famotidine + ketoconazole Moderate
Related conditions
Frequently asked questions
What drug class is famotidine?
famotidine belongs to: Gastrointestinal Tract.
How does famotidine work?
Blocks H2 receptors of gastric parietal cells, leading to inhibition of gastric secretions, Relative Potency: 20-50.
What are the common side effects of famotidine?
Constipation, Dizziness, Headache, Diarrhea
Which drugs interact with famotidine?
ketoconazole
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.