Finally! An Alarming System That Could Delay Your Ejaculation

If you search the Internet for cialis sildenafil , you will probably get confused. Cialis contains the active substance tadalafil, while Viagra contains tadalafil. These drugs have a similar mechanism of action and effect, as they belong to the group of PDE5 inhibitors. The main difference is that Viagra lasts 4-6 hours, while Cialis lasts 36 hours. Talk to your doctor to determine which medication is best for you