If premature ejaculation is caused by true yin deficiency (kidney yin deficiency), it can be treated with Zuo Gui Wan. Zuo Gui Wan has the effect of nourishing the kidney and tonifying the yin, and is used for dizziness, tinnitus, blurred vision, insomnia, alopecia, sweating, dry mouth, dry pharynx, dry tongue, lumbar soreness, weakness of knees, inability to walk for a long period of time and stand for a long time, spermatorrhea, impotence and so on, which are caused by the insufficiency of genuine yin (insufficiency of yin of the kidney). So if premature ejaculation is caused by true yin deficiency (kidney yin deficiency), it can be treated with Zuo Gui Wan. Adverse effects of taking Zuo Gui Wan are not clear at present. It is forbidden for pregnant women, children, people who are allergic to this product, and people with allergies should be cautious. It is recommended that patients with physical discomfort, can go to a regular Chinese medicine hospital for diagnosis, and then under the guidance of the doctor reasonable, standardized medication, do not take blindly.