Such persistent side-effects appear to be very rare. So, if you are struggling with erectile dysfunction, should you be worried about trying Viagra? In short, no. In addition, taking the drug under medical supervision would likely have meant that the men would not have used such a high dose on their first time. Starting with a lower dose may have meant less severe side-effects. These men also took the highest recommended dose of sildenafil on their first time taking the drug. So, why were these men susceptible to such long-lived side-effects? It may be possible that a small subsection of the population does not break sildenafil down and eliminate it from the body efficiently, leading to very high concentrations in the blood compared with most users. However, I wanted to highlight that persistent eye and vision problems may be encountered for a small number of users." "For the vast majority of men, any side-effects will be temporary and mild. "Many men use non-prescription performance enhancing drugs to help with sexual anxiety and erectile dysfunction," said Karaarslan. Fortunately, in all 17 patients the symptoms had cleared up by 21 days later, but this was doubtless a difficult experience for the men involved. The doctors in the clinic conducted various eye tests and monitored the patients over time to see how their symptoms developed. The visual side-effects began once the drug took effect, and were still present when the men arrived at the clinic 24-48 hours later. None of the men had been prescribed the medication. In the new study, Karaarslan reports that the patients suffered numerous visual disturbances, including abnormally dilated pupils, blurred vision, light sensitivity, and color vision disturbances, which included intensely blue colored vision with red/green color blindness.Īll 17 patients had taken sildenafil for the first time, and all took the highest recommended dose of 100 mg. Cüneyt Karaarslan of the Dünyagöz Adana hospital in Turkey, noticed a pattern in 17 male patients who attended the hospital. The effects of the drug normally last 3-5 hours and although side-effects such as headache and blurred vision occasionally occur, they usually disappear relatively quickly. Originally developed as a treatment for high blood pressure, the drug dilates blood vessels and relaxes smooth muscle in the penis, making it easier to achieve and maintain an erection. It soon became the fastest selling drug in history, demonstrating the phenomenal demand for treatments that enhance sexual performance. Sildenafil, more commonly known by its tradename Viagra, became available in 1998 as a treatment for erectile dysfunction. While these effects appear to be rare, the research suggests that first-time Viagra users should start with a lower dose before increasing it, if necessary.Įrectile dysfunction can have significant psychological consequences for men who are affected by it, and it can make fulfilling sexual relationships more difficult to achieve. However, a recent study in Frontiers in Neurology has highlighted the risk of persistent visual side-effects, such as light sensitivity and color vision impairment, in men who have taken the highest recommended dose of Viagra. Sildenafil is commonly used to treat erectile dysfunction and is generally regarded as safe with limited side effects.
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