PharmaGraphX

Log in Get Started

Famotidine

Calmicid, Duexis, Duo Fusion, Pepcid, Zantac Reformulated Aug 2022, Pepcid Complete, Tums Dual Action

Uncategorized

Standard

Half-life

2.5-3.5 hours

Protein Binding

15-20%

Metabolized By

N/A

External

Drugs.com

Mechanism of action

Competitively blocks H2 receptors on parietal cells, reducing acid secretion

Interactions

No curated interaction pairs are recorded for Famotidine. This is not a statement that none exist — check a full interaction reference before combining.

Common adverse effects

Headache
Dizziness
Constipation

Food, alcohol & herbal

Alcohol · minor

No significant interaction

Pharmacokinetics

Half-life: 2.5-3.5 hours
Protein binding: 15-20%

Pregnancy & lactation

Not recorded for Famotidine. Absence here means this database does not hold a category — not that the drug is safe in pregnancy or breastfeeding.

Sources

Assembled from: drug index, curated drug database.

Not a substitute for clinical judgement