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When Was Viagra Invented?

When Was Viagra Invented_

On March 27, 1998, the US Food and Drug Administration approved the anti-impotence drug developed by Pfizer and called Viagra. You will be surprised – initially, sildenafil citrate was intended for patients suffering from cardiovascular diseases. Its positive effect on male potency was discovered by accident.

Viagra: Discovered by Accident

According to the developers, the drug was supposed to increase blood circulation in the heart area and reduce pressure. The tablets were given to volunteers. It turned out that the remedy does not have any particular effect on the heart and blood vessels but many male patients did not want to return the remaining sildenafil pills. The reason was that the drug significantly increased erection. The doctors were puzzled: Sildenafil did improve blood circulation, but not in the heart, but in the genital area!

This interested the scientists and they began the clinical trials of the drug, positioning it as a drug to increase potency. Later the remedy received a new name – Viagra.

For five years, doctors tested the effect of the drug on patients’ health, and finally, in 1998, Viagra went on sale. Today, according to pharmacists, this medicine is one of the most popular products among men. This is one of the best drugs for the treatment of erectile dysfunction.

Men should take Viagra no more than 1 time per day, approximately one hour before sexual intercourse. The tablet should be swallowed whole, washed down with a small amount of water. However, it is recommended consulting a doctor who can select an individual dosage for you.

Often, men consider Viagra as a panacea for misfires in bed. Meanwhile, this drug has some contraindications. So, the pills cannot be taken simultaneously with certain medications for angina, with increased sensitivity to the components of the drug, bleeding and ulcerative exacerbations, severe arrhythmia, too high or low pressure, as well as during the first six months after suffering a myocardial infarction.

In some cases, the drug can lead to side effects: palpitations, flushing, headache, dizziness, stomach upset, fainting, nosebleeds, the eyes may become more sensitive to bright light. In addition, some men reported a violation of colour perception after taking “blue tablets”: they saw the world in bluish tones. Sometimes, the medicine can cause a painful erection that lasts for several hours and requires medical intervention.

By the way, British researchers studied the effect of Viagra on mice and found that this remedy reduces the probability of conception by 30 percent. There is no such data regarding people. On the contrary, according to representatives of Pfizer, Viagra contributes to the improvement of childbearing function (since it increases sexual activity).