必利勁 is the trade name, the generic name is Dapoxetine Hydrochloride, this product can not be taken half a pill at a time, you need to swallow the tablet intact, otherwise it will affect the efficacy of the drug. Dapoxetine Hydrochloride can reduce the excitability of the ejaculatory center and prolong the time needed for ejaculation, and is mainly used clinically for the treatment of premature ejaculation or poor control of ejaculatory ability in men. When taking this product you need to take the tablet in its entirety, with a full glass of water. The medication should not be broken and taken as this may affect the efficacy of the medication. The main side effects of the drug include mild headache and nausea, etc. It is contraindicated for those who are allergic to any of the ingredients in the product, those who have significant pathological conditions of the heart, etc. It is recommended to consult a physician before using the drug and follow the doctor’s instructions.