DescriptionSildenafilstructure.svg English: Skeletal formula of sildenafil (trade names Viagra and Revatio) — a drug used to treat erectile dysfunction
File:Sildenafilstructure.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Sildenafil Structural
File:Sildenafilstructure.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Sildenafil-A-2D-skeletal