How long does a dapoxetine tablet last?

The action time of one dapoxetine tablet is usually 3-5 hours, and the specific duration may vary depending on individual differences, drug dosage, and metabolism. Dapoxetine is mainly used to treat premature ejaculation and is a short-acting selective serotonin reuptake inhibitor.

Dapoxetine is absorbed quickly after oral administration, with the plasma concentration reaching its peak within 1-2 hours. The half-life of the drug is short, about 1.5 hours. Most patients begin to feel the effects within 1 hour after taking the medicine and maintain good control within 3-5 hours. Drug metabolism is mainly completed through the liver, and metabolites are excreted through the kidneys. Factors that affect the duration of action include age, liver function, weight and whether it is taken on an empty stomach. Medications are absorbed more quickly on an empty stomach but may increase the risk of gastrointestinal upset.

A very small number of patients may experience prolonged or shortened action time. People with abnormal liver function may slow down their metabolism, resulting in prolonged drug action. The metabolism rate of dapoxetine may also be affected when combined with other drugs. For example, combined use with antifungals and antibiotics may prolong the action time. Some patients are highly sensitive to drugs and can achieve long-term effects with low doses. It is recommended to choose a low dose when using it for the first time, and then adjust the dosage plan after observing individual reactions.

You should avoid drinking alcohol while taking dapoxetine, as alcohol may aggravate adverse reactions such as dizziness. If you experience palpitations, dizziness or other discomfort after taking the medicine, you should rest in time. Long-term use requires regular evaluation of efficacy and safety, and it is not recommended to adjust the dosage yourself. Dapoxetine is a prescription drug and must be used strictly as directed by your doctor. It cannot be mixed with other antidepressants. If an erection persists for more than 4 hours and other abnormalities occur, seek medical attention immediately.