必利勁 is the trade name and generic name for dapoxetine hydrochloride tablets, which are usually taken in a four-week course or six doses. Dapoxetine hydrochloride is a commonly used medication for the treatment of premature ejaculation. After six or four weeks of taking the medication, it is necessary to evaluate the risk of the medication and the effectiveness of the medication. Most people achieve good therapeutic results after taking it for about four weeks. It is necessary to temporarily stop a course of treatment and consider whether to continue the medication based on the therapeutic effect. The main side effects of dapoxetine hydrochloride tablets are mild headache, nausea, fatigue, fainting, dizziness or increased eye pressure, which are usually mild and of short duration. It is contraindicated in patients who are hypersensitive to dapoxetine hydrochloride or any of the excipients, as well as in patients with significant pathological conditions of the heart, such as heart failure, significant myocardial ischemia, and those suffering from valvular and other diseases. Patients are advised to take Dapoxetine Hydrochloride tablets under medical supervision to avoid serious consequences.