Cialis is Tadalafil derivative which is regarded the most effective peroral drug for the treatment of the erectile dysfunction by means of the positive pharmacological action – 35 hours. In the medical field Cialis is considered the more universal drug than analogs because the possibilities of its use are broader.

Mechanism of the action

The active component of Tadalafil prevents the appearance of the impotence due to the blood filling of the genitals of the man and constant stimulation of the erection. Under the influence of this drug there is an increase of the blood circulation in the genitals, and this helps the man to reach the erection. At the same time Cialis restores and maintains erection only during sexual stimulation, and if it is absent, the man does not experience unintentional erection. So the risks that the erection may appear at the unneeded time are absent.

Usage and dosage

Precautions