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Erectile Dysfunction Pills Not Harmful To Vision

April 14, 2009

A new study has shown treatments for erectile dysfunction, such as the hugely popular drug Viagra, do not appear to pose long-term damage to men’s sight.

Doctors were concerned that Viagra and other drugs like it might be harmful after some men reported blurred and blue-tinged vision. Viagra and Cialis, another big erectile dysfunction drug, account for a billion dollars in sales in 2008.

According to the results published in the April issue of Archives of Ophthalmology, the six-month study published Monday and funded by pharmaceutical giant Eli Lilly, the makers of Cialis, showed no side effects on sight.

The drugs work by blocking an enzyme in the blood flowing to the penis, which has caused fears that it could also act similar in the retina in the eye that receives and transmits images.

There was 244 healthy men that took part in the study, some with mild erectile dysfunction, aged 30 to 65.  About 85 of them took five milligrams of Cialis daily, and 77 took 50 milligrams of Viagra, while 82 were given a placebo.

Amongst the 194 men that completed the study and eye examinations, there were no significant differences found in vision between those taking the drugs and the placebo groups.

“Our results indicate that there is no cumulative damage or effect of clinical significance for either 5 milligrams of tadalafil (Cialis) or 50 milligrams of sildenafil (Viagra) taken daily for six months,” the report noted.

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