Sildenafil citrate, the active ingredient in Viagra, has been associated with visual side effects, although for most men these are mild and temporary. However, if they persist, switching to another ED drug should help to remedy the problem.
For a handful of men, taking Viagra left them feeling as though they were wearing blue-tinted glasses. But they weren’t wearing glasses at all. Instead, this vision anomaly, brief stints of which have been identified in the past as a side-effect of Viagra, lingered for days.
This persistent blue-tinted vision was observed recently among 17 Turkish men who took Viagra 100 mg tablets that they had obtained without prescription. For all of them, the problems resolved completely within 21 days and in a few cases in just over 24 hours. The vision problem was first reported in a study published in a February 2020 issue of Frontiers in Neurology.
Most Side Effects Are Mild
In a statement, the Turkish doctor who authored the study acknowledged that Viagra side effects for most men are mild and temporary. “However, I wanted to highlight that persistent eye and vision problems may be encountered for a small number of users.”
Sildenafil, the active ingredient in Viagra, is a PDE-5 inhibitor, meaning that it temporarily sidelines an enzyme known as phosphodiesterase-5, which can interfere with optimal blood flow to the penis.
Another Enzyme Also Affected
However, researchers at the University of California, Irvine, announced in early 2019 that they had found that sildenafil also has effects on PDE-6, “an enzyme that plays an indispensable role in human vision,” according to ScienceDaily.com.
In announcing the discovery, lead researcher Sahil Gulati noted that PDE5 inhibitors have been linked to several visual side effects, including changes in color vision. “These side effects are caused by the binding of PDE5 inhibitors to PDE6 in the retina.”
Consider Switching Drugs
If you’re a Viagra or sildenafil user who’s experienced bothersome vision changes, you might be able to avoid these in the future by switching to another PDE5 inhibitor with fewer, if any, such side effects. Sildenafil has been associated with more visual side effects than the active ingredients in other PDE5 inhibitors.
No matter which ED medication you prefer, you might find that you can save time and money by ordering it from eDrugstore.com, a longtime online medical facilitator based in Tempe, Arizona. In business since the late 1990s, eDrugstore deals exclusively in FDA-approved medications.
Benefits of Online Ordering
The prices at eDrugstore include not just the drug you’re ordering but a bundle of time- and money-saving services as well. Because shipping is free, you’ll be able to skip the hassle of trips to and from your local pharmacy.
Of all its services, eDrugstore’s complimentary online consultations are perhaps the most popular. Designed for men who find it difficult to fit a doctor’s visit into their busy schedule, the service pairs you up with a physician licensed to practice in your state. Based on information you exchange with the doctor online, the physician will determine if you’re an appropriate candidate for an ED drug. If so, a prescription will be authorized. To learn more, pay a visit to eDrugstore’s Erectile Dysfunction page.
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