必利勁 is the trade name, generic name is dapoxetine hydrochloride tablets, its specifications have 30mg and 60mg, according to the instructions for medication, the first oral 30mg, if the effect is not good, can be oral 60mg, according to the different dose, the number of tablets to take oral is also different. Dapoxetine hydrochloride tablets according to the different dosage, the number of tablets is also different, the instructions recommend the initial dose of 30mg, at this time to take a piece can be. If the effect of the drug is not good, you can increase the dose to 60mg, then you need to take 2 tablets of 30mg dose or 60mg of a tablet, but all need to be standardized under the guidance of the doctor to use the drug. Adverse reactions such as dizziness, nausea, diarrhea and excessive sweating may occur during the administration of Dapoxetine Hydrochloride Tablets. People who are allergic to the components of this drug, obvious heart failure and so on should be prohibited from taking the drug.