Of Drugs and Desire
While Viagra is very effective in meeting its very specific objective, the assumption that it’s an all-around sex-enhancer would be wrong. “Viagra is not an aphrodisiac for men with normal function, and it does not increase the number of orgasms a man is going to have,” says Andrew McCullough, MD, assistant professor of urology at New York University and director of NYU’s Male Sexual Health and Fertility Clinic.
Additionally, Viagra has no effect in the absence of sexual stimulation, at least not at the recommended doses. It will not restore libido. It will not cure premature ejaculation, nor will it overcome an inability to ejaculate. All Viagra does is help you obtain and maintain an erection??”if your body is having trouble doing the job on its own.
As for side effects, Viagra has proved, so far, to be remarkably safe and well tolerated (“well tolerated” meaning the side effects are not so unpleasant as to make you stop using it). According to the manufacturer (Pfizer), the most common side effects reported in clinical studies of Viagra were headache in 16% of patients; flushing in 10%; stomach upset in 7%; nasal congestion in 4%; urinary tract infection, abnormal vision (slight, temporary color blindness or sensitivity to light), and diarrhea in 3%, each; and dizziness and rash in 2%, each. These side effects are generally mild, and, in any case, the “adverse events” reported in clinical studies may be unrelated to the drug being studied.
When Viagra Might Be Harmful
You may have heard about a number of deaths in men who were taking Viagra, back when it first came on the market. Some of those deaths were associated with Viagra, but not directly; they were caused by the interaction of Viagra with a class of heart medications called organic nitrates (nitroglycerin is an example). Organic nitrates dilate (relax and expand) blood vessels. The inhibition of PDE5 by Viagra increases this relaxation to the point that a person??™s blood pressure can plummet suddenly to deadly levels. Viagra should never be used in combination with organic nitrates, and this caution includes the concurrent use of nitrate inhalants.
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