SPL Set ID: e899da81-a28e-4a7e-a0e6-ed6d557c0bcd
1 drug(s) with this SPL Set ID
Tadalafil is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Tadalafil has the empirical formula C 22 H 19 N 3 O 4 representing a molecular weight of 389.41 The structural formula is: The chemical designation Pyrazino[1′,2′:1,6]pyrido[3,4-b]indole-1,4-dione, 6-(1,3-benzodioxol-5-yl)-2,3,6,7,12,12a-hexahydro-2-methyl-, (6R-12aR)-.It is a white or almost white powder, freely soluble in dimethylsulphoxide, slightly soluble in methylene chloride and practically insoluble in water. Tadalafil tablets, USP are available as almond-shaped tablets for oral administration. Each tablet contains 2.5, 5, 10, or 20 mg of tadalafil and the following inactive ingredients: low substituted hydroxypropyl cellulose, hydroxypropyl cellulose, hypromellose, yellow iron oxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate, talc, titanium dioxide, and triacetin. tadalafil-structure