Erectile dysfunction is a hard disease of men, it contributes to destroying not only their sexual health, but personal life does the same. Erectile dysfunction manifests in different ways. It can be in hard form, that's why erection of men doesn't appears for injection penis into vagina and for having a sex, or it can have light form, according to it man can't have a sex because of regular erection disappearing. Treatment of erectile dysfunction leads on base of disease indexes and on reason of its appearance. But often, men use Viagra, because only Viagra helps to restore erection independently on hardness of disease. Pills Viagra represents a drug that improves erection of men on base of natural reproductive system work. Viagra normalizes blood flown in penis; due to it healthy erection appears. Viagra effects manifest very quick, that's why if man takes only 1 pill of remedy, after 30 minutes, he is ready to have a sex. That's why, pills Viagra are very popular in the middle of men and due to them there is a possibility to keep on active sexual life independently on hardness of potency disorder and manifestation of that disease. Viagra use will help you to return confidence in next day.