moleculefinder

SHEET /m/famotidine · PubChem CID 3325 · REV 2026.07

marquee

Famotidine

from source

C8H15N7O2S3 · 337.5 g/mol

Quamtel · Neocidine · Vagostal · Ulceprax

Also sold as Pepcid from source

What is Famotidine?

A stomach acid reducer sold as Pepcid. It blocks the histamine receptor that tells the stomach lining to secrete acid. from source

CategoryOTC medicine
Chemical familyAmines
LeaderboardsBiggest

Fig. 1 · 2D structure RDKit

SMILESC1=C(N=C(S1)N=C(N)N)CSCCC(=NS(=O)(=O)N)N

Where you'll find it

Sold over the counter, without a prescription. Sold as Pepcid. See the rest of the otc medicine group.

Compare with

Sources & methodology

PubChem CID
3325
Wikidata
Q411159
Structure
PubChem → RDKit
Data refreshed

How MoleculeFinder sources and labels its data