Viagra May Cause Vision Loss In a new study, US researchers describe seven patients who developed nonarteritic ischemic optic neuropathy (NAION), an eye problem that can result in permanent vision loss...

Viagra FAQ You must be sexually stimulated for VIAGRA to work. In one study, VIAGRA was shown to work in some men in as quickly as 14 minutes...

Viagra Guides

How Does It Work

Unlike previously approved treatments for impotence, Viagra does not directly cause penis erection, but affects the response to sexual stimulation. The drug acts by enhancing the smooth muscle relaxation using nitric oxide, a chemical that is normally released in response to sexual stimulation. This smooth muscle relaxation allows increased blood flow into certain areas of the penis leading to an erection.
Viagra was evaluated in numerous randomized, placebo controlled trials involving more than 3000 men with varying degrees of impotence associated with diabetes, spinal cord injury, history of prostate surgery, and no identifiable organic cause of impotence. Patients also had a wide range of other concomitant illnesses including hypertension and coronary artery disease.Buy HGH - Somatropin
The drug's effectiveness was assessed primarily using a sexual function questionnaire. Patients were asked to report at the beginning, and periodically throughout the studies, how often they were able to achieve an erection adequate for intercourse, and how often that erection was maintained after penetration. In addition, patients kept diaries of their sexual histories. In all trials, men on Viagra reported success more often than did men on placebo, and rates of success increased with dose. The findings were consistent in men representing a wide range of severity and etiology of their erectile dysfunction (impotence). Men with diabetes or radical prostate surgery had less improvement than did other groups.
Please understand that Viagra Professional is not a hormone or aphrodisiac - It's a medicine that treats a physical condition. -

How much time does it take to work?

Take Viagra Professional about 15 minutes to 20 minutes before you plan to have sex. Viagra Professional can help you get an erection if you are sexually excited. After a man takes Viagra, he must be sexually stimulated for it to work. This can include kissing or touching. If you take Viagra Professional after a high-fat meal (such as fish & chips, cheeseburger or French fries), the medicine may take a little longer to start working.
Viagra Professional can help you get an erection when you are sexually excited. You will not get an erection just by taking the pill.
Viagra works by helping you get an erection in response to sexual stimulation. Once a man takes Viagra and has sex, his erection will go away after intercourse, just like it would normally. Viagra works in as quickly as 30 minutes and lasts for about 4 hours after that. Take your time and go at your own pace. In the rare event of an erection lasting more than 4 hours, see your doctor. - Drug Rehab Center - Watch TV