How does Viagra work?

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VIAGRA is a prescription drug that works by increasing blood flow to the penis.

When a man is sexually stimulated, VIAGRA helps the penis fill with enough blood to cause an erection. After sex is over, the erection goes away. It remains effective for about 12 hours.

During arousal, the arteries in the penis relax and widen, allowing more blood flow into the erectile tissues. These arteries then expand and harden. The veins that carry blood away from the penis become compressed, restricting the blood flow out of the penis. More blood begins flowing in and less flows out, making the penis larger, and causing an erection. Blood must be able to reach and remain in the erectile tissues to maintain erection quality.

Viagra is the best-known drugs . Nearly all American adults has heard of the drug and can tell you what it does, or maybe can't tell.

Viagra helps in making the proper erection. It increases the blood flow in the penis which can make the proper erections. Viagra is the perfect solution for the treatment of ED. Viagra should take before the sexual activity.

First answer by ID2903988087. Last edit by John9950174. Contributor trust: 0 [recommend contributorrecommended]. Question popularity: 65 [recommend question].