Viagra (sildenafil) is a drug that was created by Pfizer that is used mainly to treat erectile dysfunction that was released on the market in 1998. Viagra was the first drug released on the market for the treatment of erectile dysfunction. Ever since the release of Viagra, it has changed the sex lives of millions of men and women around the world.

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In South Africa, Viagra is considered a prescription-only drug. The average cost of four Viagra tablets is $10-$20 in South Africa. One place to order it online is http://www.viagrastoresa.com. This is a very convenient pharmacy where all you have to do is upload your prescription, fill out the information and they take care of the rest. It is that simple!
One very interesting fact is that the scientists in the Pfizer Laboratories discovered how sildenafil can treat erectile dysfunction by accident! The scientists were studying the use of sildenafil and how it can use to treat high blood pressure. During the trials of testing Viagra, the scientists were finding that many of the male test participants were not willing to give back the samples of the drug as it was assisting with making their erections last longer. Who would have thought?
With that previous thought being mentioned, Viagra is not always used to treat erectile dysfunction in men. The function on Viagra is to relax the muscles found in the blood vessels and increases blood flow to certain areas of the body, which can assist with high blood pressure. A person that is prescribed Viagra for high blood pressure is very uncommon.

The strengths that are currently available are 25 mg, 50 mg, and 100 mg. Those taking Viagra should not take more than one dose within a 24-hour period. To achieve best results, Viagra should be taken one hour prior to sexual activity.

Although Viagra may be considered a “miracle drug” for those experiencing erectile dysfunction, it can also cause potentially serious side effects. If you have an constant erection for more than four hours, call your physician or emergency care immediately. You should also talk to your physician about any other medications you are taking or any other medical conditions, as the drugs may interact or increase the side effects of Viagra.

If you are taking nitrate drugs, you should not be taking Viagra, as this could cause a sudden and very serious decrease in your blood pressure. If you feel dizziness, numbness, tingling, or pain in your chest during sexual activity after taking Viagra, call your doctor as this could mean it is a serious side effect of the drug. Grapefruit and alcohol should also be avoided while taking Viagra, as this could increase unwanted side effects. Sudden loss of vision is also a side effect as sildenafil can decrease the blood flow to the optic nerve. There is a higher chance for those with high blood pressure, high cholesterol, and diabetes. If you experience any of these side effects, call your doctor right away.
If you are looking for a solution for erectile dysfunction, don’t feel hopeless to get your sex life back. Talk to your doctor to see if Viagra is right for you.