Nerve tonics consist of two main categories: the first, vitamin drugs. The second category, dilate blood vessels, promote blood circulation drugs. Vitamin drugs are the main drugs to nourish the nervous system, the nervous system needs to be repaired after injury, the repair must have vitamins involved in order to heal well, this kind of vitamin drugs mainly include B vitamins, mainly vitamin B1, glutamine, vitamin B complex, vitamin B12 and so on. Methylcobalamin, commonly used in clinical practice, is an oral preparation of vitamin B12, and there are also injections of vitamin B12, which play a very important role in the repair of the nervous system and can be used for a long time. The second class of drugs belongs to the class of drugs that dilate blood vessels and promote blood circulation, including danshen, ginkgo, Yunnan Baiyao class of drugs, all of which are able to play a very good role in activating blood circulation and expanding blood vessels, and help the nervous system to repair well by improving blood circulation for the nerve damage due to microcirculation disorders.