The FDA has approved Cialis (tadalafil) for once-daily use (2.5 mg and 5 mg) to treat erectile dysfunction (ED).


Men who take this low-dose daily option as directed can attempt sexual activity at anytime between doses. The daily formulation may be most appropriate for men with ED who anticipate more frequent sexual activity (e.g., twice weekly). For others, the previously approved taken-as-needed dosing regimen of tadalafil may be most appropriate.

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”Now, patients have two options,” said Shawn Heffern, Cialis U.S. director of brand marketing at Eli Lilly and Company, which makes the drug. Cialis for once-daily use improved erectile function over the course of therapy in clinical trials.


The initial approval of the drug in 2003 transformed the American ED market as it was the first and only phosphodiesterase-5 inhibitor clinically proven to provide sustained efficacy as long as 36 hours. Lilly’s wholesale pricing for once-daily Cialis will be comparable to the as-needed formulation.