There is no such thing as how long to take Cistanchis for premature ejaculation, it should be based on the condition of the patient and combined with other medications for comprehensive treatment, which can achieve better results. Cistanchis can be used to treat patients with kidney yang deficiency and kidney essence deficiency, while other forms of premature ejaculation cannot be treated with Cistanchis. Cistanchis is warm in nature, sweet in taste and belongs to the kidney meridian. It is mainly used for treating impotence due to kidney deficiency, spermatorrhea and premature ejaculation, as well as cold pain in the waist and knees. Premature ejaculation identified as insufficient kidney yin and insufficient kidney essence can be treated with medicines such as Epimedium, Bacopa Monnieri, Cortex Eucommiae, Deer Antler, etc., and can be combined with acupuncture to promote the operation of the essence and enhance its therapeutic effect. The treatment of premature ejaculation should not believe in biased prescriptions, should be under the guidance of a professional physician, so as not to delay the condition.