Viagra vs. Cialis – Which do men prefer?



Men prefer Cialis by 3 to 1 over Viagra.


In a trial studying men’s preferences after restoring function to the penis with either sildenafil (Viagra) or tadalafil (Cialis), men with erectile dysfunction preferred Cialis. In a European study [Eur Urol 2004;45:499-509], men were given either 20 mg of Cialis or 50 mg of Viagra for 12 weeks with opportunities to choose meds (or raise dosages) after the initial study period. “In the doses utilized in this study, 73% of patients preferred tadalafil with tadalafil dosing instructions for the treatment of their erectile dysfunction over sildenafil with sildenafil dosing instructions.” It should be noted the maximum dose of Cialis was compared not to 100 mg dose of Viagra (the maximum) but to the 50 mg dose initially. Nevertheless, in most studies, about three quarters of patients prefer Cialis and one quarter prefer Viagra.