Viagra is the brand name for a formulation of the medicine, sildenafil citrate developed by Pfizer Inc, for the treatment of erectile dysfunction (ED). Sildenafil citrate is also used to treat high blood pressure that affects the arteries in the lungs and right side of the heart, called pulmonary arterial hypertension (PAH), under Pfizer’s other brand name, Revatio.
Viagra is one of the most controversial and widely discussed pharmaceutical drugs to have hit the market in the last 30 years. It works by relaxing the muscles in the walls of blood vessels in certain areas of the body. This supplies adequate blood flow to the penis in order to maintain erections during sexual stimulation. When taken properly, Viagra act by allowing dilation to not only occur, but also last for a long period of time.
In most cases, Viagra works well and has changed people's lives for the better. It is generally safe to use in moderation. However, taking it may cause a range of side effects. The most common of these are:
In addition, heart attack, stroke, irregular heartbeat and death have happened rarely in men taking Viagra. According to Pfizer, most, but not all, of these men had heart problems before taking Viagra and therefore, it is not known if Viagra caused these problems.
Nevertheless, these are not all the possible Viagra side effects. Viagra can cause serious side effects that are rarely reported. Rarely reported side effects include:
While Viagra is generally safe to use in moderation, it goes without saying that you should take it with care. Tell your healthcare provider if you have any side effect that bothers you or does not go away.
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