Related Name
methyl N-[4,6-diamino-2-(5-fluoro-1,2-dihydro-2-oxopyridin-4-yl)pyrimidin-5-yl]carbamate
Vardenafil
5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
Sildenafil
1-cyclopentyl-3-methyl-6-(4-sulfamoylphenyl)pyrazolo[3,4-d]pyrimidin-4(1H)-one
Tadalafil
2-(2-ethoxy-5-(4-ethylpiperazin-1-yl-1-ylsulfonyl)phenyl)-5-methyl-7-propyl-1H-imidazo[5,1-f][1,2,4]triazin-4(3H)-one
Avanafil