必利勁 is the trade name, generic name is Dapoxetine Hydrochloride, Dapoxetine Hydrochloride will not get hard on its own most of the time after taking it, taking Dapoxetine Hydrochloride should be guided by a doctor. Dapoxetine Hydrochloride is a medication for premature ejaculation, it can improve men’s short sex life, but will not increase the hardness of the penis erection, therefore, after taking Dapoxetine Hydrochloride men’s penis mostly will not get hard on its own. Dapoxetine Hydrochloride may cause nausea, diarrhea, fatigue, headache, insomnia, vertigo and other adverse reactions when taken, it is contraindicated for those who are allergic to Dapoxetine Hydrochloride or any of the excipients, patients with significant pathological conditions of the heart, patients with moderate and severe liver injury, etc. Dapoxetine Hydrochloride cannot be used in conjunction with monoamine oxidase inhibitors, thioridazine and so on. Taking dapoxetine hydrochloride should be guided by a doctor, not self-medication, with dapoxetine hydrochloride after the appearance of self-hardening can be timely medical treatment.