SPL Set ID: ce533636-cc9b-45d0-87a6-5390377ff28a

The active ingredient in Famotidine Injection, USP is a histamine H 2 –receptor antagonist. Famotidine is [1-Amino-3-[[[2- [(diaminomethylene)amino]-4-thiazolyl] methyl]thio]propylidene] sulfamide. Its structural formula is: Famotidine is a white to pale yellow crystalline compound that is freely soluble in glacial acetic acid, slightly soluble in methanol, very slightly soluble in water, and practically insoluble in ethanol. Famotidine Injection, USP is supplied as a sterile concentrated solution for intravenous injection. Each mL of the solution contains 10 mg of famotidine and the following inactive ingredients: L-aspartic acid 4 mg, mannitol 20 mg, Water for Injection q.s. 1 mL. Structural Formula