About Viagra

Pfizer's Inc. Viagra has improved the lives of over 16 million men worldwide by helping them achieve and maintain an erection. Clinical studies reveal that erectile dysfunction affects more than 150 million men and their partners on the Globe out of which 30 million men in America alone. 65% of men over the age of 65 are diagnosed with ED, although youngsters may also have to deal with this problem. Medical surveys prove that only 10% of the reported patients blame psychological conditions, while nearly 90% of the reported ED cases have a physical determination such as diabetes, prostate cancer and surgery or heart conditions.

Due to these impressive numbers, Viagra had a powerful impact when it was first released. Approved by The Food and Drug Administration on March 27, 1998, the "blue pill", as it is also known, officially became the first oral pill to treat impotence. At this moment, statistics prove that every second 9 tablets of Viagra are dispensed all over the world. Clinical trials concluded that Sildenafil works for up 4 out of 5 men, compared to a placebo controlled group where only 1 out of 5 patients claim to have erectile improvements.

Viagra's outstanding results were discovered by accident. Initially developed to treat angina and to improve blood flow to the heart in patients with severe heart conditions, further analysis redirected specialists towards Sildenafil's present destination.
Viagra is a PDE5 Inhibitor increasing blood flow to the penis by relaxing and widening the arteries in the penis. Thus, the penis becomes hard and erect while the veins carrying blood away from the penis compress, keeping the penis firm for sexual intercourse. Viagra has no effect without sexual arousal. The blue pill must be taken by mouth between 4 hours and 30 minutes prior to sexual activity, no more than once a day. Without sexual activity, Viagra is naturally eliminated from the body within 6-10 hours.

Viagra has a series of side-effects and contraindications of great importance when deciding to use it. Most commonly met side-effects of the drug were headaches, flushing and stomach aches. Rarely were reported sight disturbances, increased sensitivity to light, blurred vision. Patients may also deal with nasal stuffiness, diarrhea and dizziness. Viagra is contraindicated in association with nitrates, which might lead to a potential hypotensive effect of nitrates, with alpha-blockers used in the treatment of prostate disturbances and high blood pressure. Moreover, Viagra is contraindicated in patients who have suffered recent strokes, heart attacks or low blood pressure, eye disturbances or stomach ulcers.