The liver is generally four weeks for a course of treatment, but the specific medication onset time needs to be based on specific conditions. The main ingredients of the drug are Di Long, leech, snake bed seeds, Wu Wei Zi, calamus, etc., has the effect of de-stressing the liver, activating blood circulation, warming Yang and tonifying the kidneys. The effect is relatively slow and patients need to take it for about a month before observing the effect. If a man has impotence, weak penis or unstable erection, it is recommended to apply the drug under the doctor’s evidence to increase the blood supply to the penis, improve the erection hardness and prolong the sexual life. However, for impotence caused by organic lesions such as damaged penile nerves and prostatitis, the treatment effect is poorer and the indications need to be strictly grasped. In addition, patients should pay attention not to drink alcohol during oral medication, drink more water, eat a light diet, and also combine it with a good lifestyle in order to improve the effect of the medication.