Tadalafil is accurately a kind of erection aid, for delay does not have obvious effect, can be taken 30 minutes before the sexual activity, sexual stimulation can be effective after the problem. At the same time it is effective time is 36 hours, the overall effect is better, but for the delay is not obvious help. Recommended for delayed action drugs for 必利勁, this drug has a better effect on delayed action. At the same time can be used externally to reduce the sensitivity of the genitals, such as bupivacaine hydrochloride gel, coated in the genital glans before sex, can effectively play the role of delay. But physical exercise can better improve the time of sex life, recommend two kinds of exercise, one is jogging, the other is deep squatting.