Vardenafil Related Compound D (25 mg) (2-{2-Ethoxy-5-[(4-ethyl-4-oxidopiperazin-1-yl)sulfonyl]phenyl}-5-methyl-7-propyl-imidazo[5,1-f][1,2,4]triazin-4(3H)-one)
Vardenafil Related Compound D (25 mg) (2-{2-Ethoxy-5-[(4-ethyl-4-oxidopiperazin-1-yl)sulfonyl]phenyl}-5-methyl-7-propyl-imidazo[5,1-f][1,2,4]triazin-4(3H)-one)
