If you encounter problems such as second ejaculation impotence, the use of 必利勁 does not work. Therefore, it is recommended that people experiencing second ejaculation impotence problems should not blindly choose a product that is not suitable for them to regulate their second ejaculation impotence problems, or else they will not be able to achieve the expected results afterwards due to the wrong medication they chose. Men who use medication to treat second shot impotence problems must find out whether they are caused by physiological or pathological reasons. If it is caused by pathological reasons, the treatment must be tailored to the situation. The action of 必利勁 is mainly used for men who are between the ages of 18 and 64 and are troubled by premature ejaculation. What kind of premature ejaculation problems can be treated? That is, if you feel less satisfied during intercourse, if this is the case, you can be treated with 必利勁 under the supervision of a doctor.