Viagra (Sildenafil) was seen the approval of the Food and Drug administration (FDA) in 1998 and was the first medicine certified for treating erectile dysfunction in men. Offered in the form of an oral medication, every second about 9 pills are taken all over the world and the manufacturer of Viagra, Pfizer, states that millions of men worldwide have already used it successfully and improved their sex lives. Impotence, or erectile dysfunction, is an issue that most men have to deal with at some point in their lives. Viagra is a medicine for those who don't expect their sexual potency to be restored anytime soon and who were diagnosed with ED and advised to try the drug by their doctor.

A pill of Viagra costs approximately $5 dollars, but the prices may vary by regions, countries and according to other factors, like competition for instance.

Viagra comes in the form of a diamond shaped blue tablet that has to be taken orally. One Viagra pill is to be taken within 24 hours, it usually starts working within 30 minutes to 1 hour and its effects last about 4 hours.

In case you take nitrate drugs avoid taking Viagra. These drugs are used for treating cardiac problems such as angina. If you take any nitrate drugs with Viagra your blood pressure will drop significantly to life threatening levels.

Men with cardiac issues, anatomical penis deformations such as Peyronie's disease, men with a medical predisposition to prolonged erections, multiple myeloma, leukemia, liver and kidney disorders, and those who take certain HIV medications or those who are over 65 should NEVER take Viagra unless their physician has recommended or prescribed the drug. There were lethal outcomes reported with men using Viagra in the above mentioned cases during sex.

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Viagra Side-EffectsOriginally designed to treat high blood pressure and cardiac issues, Viagra has manifested a very fascinating side effect during the clinical studies. Many men have experienced increased blood circulation in the penile are, which has helped them maintain prolonged strong erections. But the man has to be sexually stimulated in order to experience the effect, there won't be an automatic erection by just taking the pill!

Side-effects were reported in a very small number of cases, the most common of them being headache, dizziness, facial flushing, visual problems, nasal congestion, an upset stomach.

Viagra in Brief