Product Name: Tadalafil Chemical Name: Cialis;IC-351;(6r,12ar)-6-(1,3-benzodioxol-5-yl)-2,3,6,7,12,12a-hexahydro-2-methyl-pyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione; (6R,12aR)-6-(1,3-benzodioxol-5-yl)-2-methyl-2,3,6,7,12,12a-hexahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione; (6R,12aR)-6-(1,3-benzodioxol-5-yl)-2-methyl-3,4,6,6a,7,11b,12,12a-octahydropyrazino[1',2':1,6]pyrido[3,4-b] ...