SPL Set ID: 74a24590-a0b6-4607-8e67-9fadce53389b
1 drug(s) with this SPL Set ID
The active ingredient in famotidine tablets USP is a histamine-2 (H 2 ) receptor antagonist. Famotidine is 3-[[2-(Diaminomethyleneamino)thiazol-4-yl]methylthio] -N'–Sulfamoylpropanimidamide. The molecular formula of famotidine is C 8 H 15 N 7 O 2 S 3 and its molecular weight is 337.45. Its structural formula is: Each famotidine tablet for oral administration contains either 20 mg or 40 mg of famotidine USP and the following inactive ingredients: corn starch, hydroxypropyl cellulose, hypromellose, magnesium stearate, microcrystalline cellulose, sodium starch glycolate and titanium dioxide. In addition the 20 mg tablets contain iron oxide yellow. Famotidine USP is a White to yellowish-white, crystalline powder or crystals that is freely soluble in glacial acetic acid and dimethyl formamide, very slightly soluble in methanol, practically insoluble in ethanol and ethyl acetate. FDA approved dissolution test specifications differ from USP. str