SPL Set ID: 2faa7a55-3054-456b-8465-6ea6dc1c0aa9
1 drug(s) with this SPL Set ID
ALYQ ® (tadalafil, USP), an oral treatment for pulmonary arterial hypertension, 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 389.40. 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 practically insoluble in water, slightly soluble in methylene chloride, and freely soluble in dimethylsulfoxide. ALYQ ® (tadalafil tablets, USP) is available as white to off-white, oval shaped, film-coated tablets for oral administration. Each tablet contains 20 mg of tadalafil, USP and the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, pregelatinized (corn) starch, sodium lauryl sulfate, titanium dioxide, and triacetin. structural formula