In all developed countries, one of the most popular tools for treating erectile dysfunction in men is named Cialis from well known Canada pharmacy. Most men correctly selected from the set of propositions Cialis drug, which guarantees fast - within half an hour effect, and long action – during the whole day.

Duration of Cialis action gives a man the opportunity to catch the only true joy and pleasure for him and his partner. If you take a pill of Cialis in the morning, you will be confident in your sex abilities to the evening of the next day.

Cialis (Tadalafil), as well as Vardenafil, was synthesized in a few years after the discovery of sildenafil (Viagra). The purpose of its creation was an attempt to improve the selectivity of drug action - and this attempt has been crowned with success.

Unlike Viagra, Tadalafil (Cialis) blocks predominantly phosphodiesterase type 5, as contained in the cavernous bodies of the penis, and has almost no effect on the analogous enzymes in heart, muscle and nerve tissues. Thanks to this "target" action Tadalafil has much less severe side effects than the "firstborn" in this series of drugs - Viagra.

Often you can see that Tadalafil (Cialis) and Vardenafil (Levitra) is called generics of Viagra. However, it is fundamentally wrong: Tadalafil and Vardenafil Canadian pills are original drugs, which have slightly different chemical formula than Viagra. Generics are the same drugs that use the same active ingredient, but the composition of the additional substances may vary.