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A medicine Sildenafil for the treatment of erectile dysfunction

By admin
Medically reviewed by Sanja Jelic, MD
added on April 13, 2020
sildenafil generic viagra

A medicine for efficient treatment of erectile dysfunction. The principal active substance- Sildenafil.

The unexpected consequences of taking Viagra have been specified

There exist numerous medicines which action has not been thoroughly examined up to now. One of those is Sildenafil also known as Viagra. This medical means might cause a series of collateral effects, which number increases in the course of time.

In the recent time the scientists have defined that consumption of Viagra might render a negative effect on vision and even cause the mental disturbances.

These data was published by a medical revue “Frontiers in Neurology”. An article specifies that there were already noted 17 cases when the use of Sildenafil had caused a negative effect over the organs of vision.

In particular, the medical establishments were visited by the men at the age 38-57 years, each of those had taken Viagra 48 hours prior to the visit. All these gentlemen had never applied this medicine earlier and never suffered from the issues of vision.

In the course of examinations these patients displayed different disturbances – photophobia, alterations of vision sharpness and the colour perception, a contrast sensitivity and an abnormal pupillary dilation. In all cases the symptoms vanished during 21 day after taking Viagra.

The experts emphasize that in rare cases the patients display hypersensitivity towards Sildenafil. This peculiarity is due to the specific nature of metabolism and is encountered merely seldom. The doctors advice starting taking Viagra from a little dose in order to avoid the negative consequences.

Nevertheless, a slight photophobia or pupillary dilation are not the worst thing, expecting those who abuse Viagra. Back in the year 2018 an edition Metro published an article, saying that an American had overdosed Viagra and was seized by the weird behaviour- ha ran naked across the streets and precipitated against the bypassing people.


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  1. Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Revatio) is used to improve the ability to exercise in adults with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness).
    https://medlineplus.gov/druginfo/meds/a699015.html
  2. “Viagra patent tossed out by Supreme Court: Decision allows generic versions of drug to be produced”. CBC News.
  3. “Young men add Viagra to their drug arsenal”. USA Today.