Cialis (tadalafil) 8 x 20mg Tablets

How Cialis Works

Cialis contains tadalafil which belongs to the group of medicines called phosphodiesterase type 5 inhibitors. Following sexual stimulation, Cialis relaxes the blood vessels in the penis, allowing the flow of blood to the area. Cialis will not help those not suffering from erectile dysfunction. The effectiveness of any erectile dysfunction drug can vary, therefore, if taking Cialis doesn't work the first time it might work more effectively the next. Doctors advise trying all forms of erectile dysfunction drugs 8 times before giving up.