SPL Set ID: 2ad52dff-9fcd-041f-e063-6394a90afcef
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 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 crystalline solid that is practically insoluble in water and very slightly soluble in ethanol. Tadalafil tablets, USP are available as almond-shaped tablets for oral administration. Each tablet contains 2.5, 5, 10, or 20 mg of tadalafil, USP and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, iron oxide yellow, iron oxide red, ferrosoferric oxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate, talc, titanium dioxide, polyvinyl alcohol-partially hydrolyzed, macrogol/PEG 3350 and lecithin (soya). f35596a7-figure-01