Men who take Lilly's Cialis once per day experience normal erectile function, study finds

Study compares as-needed vs. daily treatment with ED drugs

INDIANAPOLIS — Men who took an erectile dysfunction drug made by Eli Lilly experienced normal erectile function when taking it once a day as opposed to taking erectile dysfunction treatment on an as-needed basis, according to a new study.

The study, published in the Journal of Sexual Medicine, found a greater percentage of men who had an incomplete response to as-needed treatment with phosphodiesterase type 5, or PDE5 inhibitors, a drug class that includes Lilly's Cialis (tadalafil), compared with those who took Cialis once a day.

"PDE5 inhibitors are highly effective for most men taken as-needed, but responses can range from minimal change to a return to normal erectile function," lead study author and University of Tennessee medical professor Edward Kim said. "We believe the study outcome will help prescribers make better informed decisions when treating their patients."


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