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How does Viagra / Sildenafil Citrate work?

April 26, 2017CITRATE sildenafil Viagra

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How does Viagra / Sildenafil Citrate work?

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Sildenafil Citrate has a very simple method of working; it stops a natural enzyme – phosphodiesterase – in the human body from working. This places it in a group of medicines known as PDE5 inhibitors. Phosphodiesterase is also present in the penis of men and when it exerts its effect, men become unable to sustain their erection. Sildenafil Citrate stops this phosphodiesterase from becoming fully active.