What is Viagra?

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Viagra, or sildenafil in its generic form, is a PDE5 inhibitor drug primarily used to treat erectile dysfunction whether it’s a result of a health condition or a side effect from taking other medications. Viagra works by relaxing smooth muscle tissue and allowing for vasodilation, or the widening of the blood vessels. Widening blood vessels allow blood to flow freely into the penis. Because sildenafil relaxes smooth muscle tissue and allows for vasodilation, it is also used to treat PAH, or pulmonary arterial hypertension. Viagra will not boost libido and create an erection on its own. The penis must be sexually stimulated before an erection will form.

 

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