History
Sildenafil: Intended for treating Pulmonary Hypertension
Accidentally scientist discovered that it helped men
Men with Viagra: Achieve harder and durable erections
FDA in 1998 approved Sildenafil as a Anti impotent drug
Pfizer
Nicholas Terret: Father Of Viagra
Viagra (Pfizer) Patent expires by 2010
Israeli Teva Pharmaceuticals plans to hit the market with
Generic Viagra by early 2012
Sildenafil: First recognised drug for erectile dysfunction
Impotence (Erectile Dysfunction)
Mechanism Of Action
Pharmacological Actions
Sildenafil inhibits Phosphodiesterase enzyme 5
PDE 5 inhibition increases NO
NO improves overall blood flow
Penile organ receives adequate amount of blood
Viagra: 27 minutes median time to erection
Every effect has a Side Effect
Snapshot
3 Decades Of Viagra
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