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What is ED? Erectile dysfunction is a disease in which the male penis loses its ability to come to an erection during sexual intercourse. Erectile dysfunction raspostranety mostly in men over thirty years. buy viagra. Drugs that help to cope with erectile dysfunction and restore the joy of sex work as follows: they increase blood flow to the genitals, causing an erection. Ejaculation occurring before the medication too soon or not occurring at all, with drugs ED group also becomes normal.