LivingHigh doses of Viagra could cause visual distortions

High doses of Viagra could cause visual distortions

Viagra or ‘blue pill’ is the brand name of a widely recognized medicine worldwide. The active substance, called sidenafil, is used to treat erectile dysfunction; of course, like any drug for sale, it is considered completely safe, with limited side effects. Of course, as long as the patient takes the recommended doses.

However, a study published Feb. 7 in Frontiers in Neurology has highlighted the risk of persistent visual side effects in men who took a higher-than-recommended dose of Viagra.

Side effects sensitivity to light and vision deterioration of the color are included.

Although these effects appear to be rare, research suggests that men who are taking Viagra for the first time should start with low doses , for safety, gradually increasing them if necessary.

Although mild side effects of Viagra use, such as headache and blurred vision, have already been seen, these usually go away quickly.

However, Dr Cüneyt Karaarslan from Dünyagöz Adana Hospital in Turkey studied a common pattern in 17 male patients who attended the hospital . In the new study, Karaarslan details that the patients suffered from numerous visual disturbances, including abnormally dilated pupils, blurred vision, sensitivity to light, and color vision disturbances, including intensely blue vision with red or green color blindness. .

All 17 patients had taken sildenafil for the first time, and all took the highest recommended dose: 100 milligrams per dose. On the other hand, none of the men studied had received any other type of medication. The visual side effects started at the same time the drug took effect, and continued for another 24-48 hours.

In some cases, the visual effects did not completely disappear until 21 days later.

The explanation the researchers find is that a small section of the male population may not assimilate sildenafil correctly, and eliminate it from the body efficiently, leading to very high concentrations in the blood compared to most of the users.

In addition, the scientists warn of the importance of consulting with the doctor before making the decision to resort to the ‘blue pill’: “Starting with a lower dose may have meant less serious side effects. Also, taking the drug under medical supervision probably would have meant that the men would not have used such a high dose the first time. “

Should you be afraid to try Viagra?

In short, no.

According to Karaarslan: “For the vast majority of men, any side effects will be temporary and mild. However, I wanted to highlight that persistent vision and eye problems can be found in a small number of users.”

Such persistent side effects appear to be very rare. However, it is always a good practice to consult your doctor first , better not to start with the highest dose and, in case it is particularly sensitive, to use the medicine under medical supervision.

An important sexual and mental support

Erectile dysfunction can have significant psychological consequences for men affected by it.

Sildenafil, better known as Viagra, came on the market in 1998 as a treatment for erectile dysfunction. It soon became the best-selling drug in history.

The authors of the study emphasize that, as long as we carry out a correct and supervised treatment, we should not be afraid or complex about resorting to Viagra: “This type of medication is a very important sexual and mental support”, they emphasize.

How does Viagra work?

Originally developed as a treatment for high blood pressure, the drug dilates blood vessels and relaxes the muscle of the penis , making it easier to achieve and maintain an erection.

More information: Ocular Side Effects of Sildenafil That Persist Beyond 24 h — A Case Series. Cüneyt Karaarslan. Doi: 10.3389 / fneur.2020.00067

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