SPL Set ID: 22b8a2e3-d1b8-f193-45fa-77cc62a1b941
1 drug(s) with this SPL Set ID
Tadalafil USP is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Tadalafil USP has the molecular formula C 22 H 19 N 3 O 4 representing a molecular weight of 389.41. The structural formula is: The chemical designation is 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 that is freely soluble in dimethylsulfoxide, slightly soluble in methylene chloride and practically insoluble in water. Tadalafil tablets, USP are available as oval-shaped tablets for oral administration. Each tablet contains 2.5, 5, 10, or 20 mg of tadalafil and the following inactive ingredients: anhydrous lactose, croscarmellose sodium, hypromellose, iron oxide yellow, magnesium stearate, microcrystalline cellulose, poloxamer, sodium lauryl sulfate, titanium dioxide, and triacetin. In addition 2.5, 10 and 20 mg tablets contain talc. USP Dissolution Test Pending.