ALL meanings of sildenafil citrate
sil·den·a·fil cit·rate
S s - noun sildenafil citrate a white crystalline powder, C 22 H 30 N 6 O 4 S, that temporarily normalizes erectile function of the penis by blocking an enzyme known to inhibit the production of a chemical that causes erections: used in the form of a pill to treat impotence. 1