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Viagra has become one of the most popular drugs in the USA, and created a storm of controversy in the UK. It is used to treat erectile dysfunction - the inability of some men to get or maintain an erect penis.

How does Viagra work?

Viagra, also known as Sildenafil, does not directly give a man an erection. It works by boosting the natural mechanism that leads to an erection. When a man is sexually aroused, certain tissues in his penis relax. This allows large amounts of blood to flow into the muscle, thus producing an erection. Viagra helps by elevating the levels of the chemical that causes the tissues to relax. These effects were discovered accidentally. The drug was originally developed to improve blood supply to the heart in angina sufferers.

Who can it help?

The drug can help impotence associated with diabetes, spinal cord injuries, prostate surgery, and even impotence with mysterious causes. Viagra was tested on 3,000 men with varying degrees of impotence. It achieved a success rate of 60-80%, depending on the dosage.

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This entry was posted on Tuesday, April 22nd, 2008 at 6:23 pm and is filed under General Information. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.