Refill With Viagra Or Buy Cialis OTC
OK, Healthy adult men who buy Cialis OTC or buying Viagra daily for six months did not develop any significant vision problems, U.S. researchers said in a company-funded study aimed at addressing concerns about the best impotence treatments.
Pfizer Viagra or sildenafil and Eli Lilly Cialis or tadalafil treat impotence by increasing blood flow to the genitals, but some men taking the drugs have reported blurred vision, blue-tinged vision or altered light perception.
The drugs work by blocking the action of the enzyme phodiesterase type 5 or PDE5 on the blood vessels in the penis. But PDE5 inhibitors may also act on blood vessels in the retina, which could explain some of the reports of vision problems.
They studied 244 healthy men according to medspharmacysupport.com or those with mild erectile dysfunction aged 30 to 65 who had no vision problems. Of these, 85 took 5 milligrams of Cialis, 77 took 50 milligrams of sildenafil and 82 took a dummy pill daily for six months.
The men underwent comprehensive eye exams, including electroretinography, a test to measure the electrical response of the light-sensitive cells in the eye, before, during and after treatment.
Among the 194 men who completed the study, the researchers found no significant differences between treatment and placebo groups on electroretinography, visual function tests, measurements of pressure within the eyeball or assessments of the anatomy of the eye.
Our results indicate that there is no cumulative damage or effect of clinical significance for the studied doses of either drug.
They said their study was limited because the doses used were lower than some other studies that did find retinal changes. And they said the results could not be generalized to men with eye problems, who were excluded from the study.
Viagra and Cialis each had global sales of more than 1.1 billion USD in 2008.
Eli Lilly designed and paid for the study, which did not evaluate Bayer AG Levitra or vardenafil, a similar drug. After ordering your prescription online you will receive email message from support@medspharmacysupport.com or support@canadianpharmsupport.com … Be healthier and enjoy your life!
