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Pfizer pain drug doesn't affect sperm production, study finds

Drug maker announces phase-4 study results

NEW YORK — A drug made by Pfizer for treating pain disorders doesn't affect men's reproductive functions, according to a new post-approval clinical study.

The drug maker announced Monday the results of study A0081104 of Lyrica (pregabalin), which compared the drug with placebo in healthy males to assess its effects on sperm production. The phase-4 study was required by the Food and Drug Administration.

The study enrolled 222 men, who were randomly selected to receive either the drug or placebo. Lyrica is used to treat post-herpetic neuralgia, diabetic nerve pain, fibromyalgia, neuropathic pain associated with spinal cord injury and partial-onset seizures in certain adults with epilepsy.


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