SPL Set ID: fc7596dd-42d3-af7c-e053-6294a90af01e
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 tablet, USP is available as yellow colored, oval-shaped, film coated tablets for oral administration. Each tablet contains 2.5, 5, 10, or 20 mg of tadalafil and the following inactive ingredients: lactose monohydrate, microcrystalline cellulose, croscarmellose sodium, copovidone, sodium lauryl sulfate, magnesium stearate, hypromellose, titanium dioxide, iron oxide yellow and triacetin. Chemical Structure