The biggest differences between Viagra and Cialis is the total amount of time each medication works — for Cialis, up to 36 hours, and for Viagra, around four hours. But other nuances about how ...

By the age of 40, around half of all men may experience some issues with erectile dysfunction. medication works about half the time.

Cialis, the brand name for tadalafil, can safely treat erectile dysfunction (ED) and is available only by prescription. To receive a prescription, you can talk with a doctor directly or sign up ...

Is It Safe to Take Cialis Daily? Unlike other ED medications, such as Viagra® (sildenafil) and Levitra® (vardenafil), which work for four to five hours per dose, Cialis® (which contains the ...