Viagra

They've got other things on their minds.

According to WHO data in a year, more than million men all over the world have the erectile dysfunction.

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They are both used to treat erectile dysfunction.

First put on the market in by Pfizer, Viagra works by inhibiting the enzyme phosphodiesterase 5 PDE5, which in turn relaxes the blood vessels in the body.

Men in the study who started a walking program also experienced improvements, though not as dramatic.

Treatment of paediatric patients aged 1 year to 17 years old with pulmonary arterial hypertension.

Michael Gambon, the actor best known for playing Dumbledore in the 'Harry Potter' films, dies at

Chicago Kent College of Law.

These findings help to make Viagra more effective for erections.