Drugs to prevent hair loss, generally can be used in Chinese medicine, commonly used beneficial kidney hair oral solution, solid kidney hair pill and other proprietary Chinese medicines, but need to identify the use of evidence. In Chinese medicine, it is generally believed that hair loss is caused by blood deficiency and wind, kidney deficiency, or blood heat and dryness, etc. Chinese medicines should be used under the guidance of identification. Chinese medicine should be used under the guidance of diagnosis. Optional Chinese patent medicines include Beneficial Kidney Hair Loss Oral Liquid and Kidney Hair Growth Pill. 1. Oral Liquid for Enriching Kidney and Darkening Hair is composed of He Shouwu, Angelica sinensis, Boneset, Chinese wolfberry, Sha Yuan Zi and other medicines. It has the effect of tonifying the liver and kidney, and making hair black. It can be used for hair loss and premature graying caused by deficiency of liver and kidney. The contraindications and adverse reactions of this drug are not clear. Avoid spicy, cold and greasy food during the period of taking this medicine. Not suitable for patients with fever and cold. It should be taken before meals. 2. Kidney and Hair Growth Pill is composed of Radix Rehmanniae Praeparata, Fructus Lycii, Radix Polygoni Multiflori, Rhizoma Ligustici Chuanxiong, Radix Angelicae Sinensis, etc. It has the effect of strengthening the kidney and nourishing the blood, benefiting the qi and dispelling the wind. It is used for hair loss caused by deficiency of the liver and kidneys (weakness of the liver and kidneys), as well as spot baldness, total baldness, and generalized baldness seen in the above symptoms. The adverse effects of this drug are not clear. It is contraindicated in pregnant women. Avoid spicy, cold and greasy food. Not suitable for patients with cold and fever. It should be taken before meals. Patients with chronic diseases such as hypertension, heart disease, liver disease, kidney disease, etc. should take it under the guidance of a physician. The above medications must be used under the guidance of a physician and should not be used blindly by oneself. If there is any hair loss manifestation, it is recommended to go to the hospital for consultation.