1) Anit-impotence drug 2) Erectile dysfunction drug 3) Viagra 4) Virility drug 1) Viagra 
Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, is a drug used to treat erectile dysfunction and pulmonary arterial hypertension (PAH). It was originally discovered by Pfizer scientists Andrew Bell, David Brown, and Nicholas Terrett. It acts by inhibiting cGMP-specific phosphodiesterase type 5 (PDE5), an enzyme tha...
A drug used to treat erectile dysfunction. Sildenafil relaxes the smooth muscle of the penis to allow increased blood flow and erection. It is a type of phosphodiesterase inhibitor. Also called Viagra.
(sil-den´ә-fil″) an agent that relaxes the smooth muscle of the penis, facilitating blood flow to the corpus cavernosum; used as the citrate salt to treat erectile dysfunction.
Type: Term Pronunciation: sil-den′ă-fil Definitions: 1. A selective inhibitor of cGMP-specific phosphodiesterase type 5 (PDE5); relaxes the muscle in the penis, resulting in greater blood flow and erection; used to treat male impotence; potentiates the hypotensive effects of nitrates.
[n] - virility drug (trade name Viagra) used to treat erectile dysfunction in men
sildenafil citrate noun virility drug (trade name Viagra) used to treat erectile dysfunction in men