Dapoxetine is a drug for the treatment of premature ejaculation. The majority of patients may have intercourse longer than 3 minutes after use, and how long it lengthens is related to many factors, related to sexual skills, and related to the individual’s mental factors. The use of dapoxetine should be taken orally with 300ml of water 1 hour before sexual intercourse, and sexual contact should be made after oral intake. Dapoxetine is mainly a 5-hydroxytryptamine reuptake inhibitor, which can prolong the ejaculation latency and can treat premature ejaculation, some people can reach 10 minutes after use, and some people use a period of time before the effect is more obvious, individual differences are relatively large.