Dapoxetine can be eaten once the effect of maintaining time has not been accurate statistics, from the follow-up situation, the effect of maintaining time in 24 hours or so, the specific maintenance time according to the patient’s condition and the patient’s absorption of the drug, there is a big difference. Dapoxetine is mainly used for the treatment of male premature ejaculation or poor ejaculation ability, if the patient’s condition is relatively mild or the absorption of the drug is better, the efficacy of the drug to maintain a relatively long period of time, will last about 24 hours. If the patient’s condition is more serious or the absorption ability of the drug is poor, the effect of the drug is maintained for a relatively short period of time, may be under 24 hours. Dapoxetine needs to be taken about 1 to 3 hours before sexual intercourse. If the effect is not satisfactory and the side effects are within acceptable limits, the dose can be increased under the supervision of a doctor. The recommended maximum dosage frequency is once every 24 hours. Dapoxetine side effects mainly include mild headache and nausea. Dapoxetine is contraindicated in patients with known hypersensitivity to Dapoxetine or any excipients. Dapoxetine is contraindicated in patients with moderate and severe liver injury. Dapoxetine is contraindicated in patients with significant pathological conditions of the heart. Dapoxetine is a prescription drug and should be used under the supervision of a physician if needed to minimize the risk of medication.