Oral neurotrophic drugs include sodium cytarabine, vitamin B1, vitamin B12, as well as methylcobalamin, piracetam, olacetam, edibenzoquinone, as well as glutamate, mudan granules and epalrestat capsules, among which mudan granules and epalrestat capsules are peripheral neurotrophic drugs, mainly used for the treatment of diabetes combined with peripheral neuropathy. The rest of neurotrophic drugs can nourish central nerve, peripheral nerve and vegetative nerve, and can be widely used in cerebrovascular disease, traumatic brain injury, cerebral atrophy, epilepsy, migraine, Alzheimer’s disease, frontotemporal dementia, Parkinson’s disease, central nervous system infection, as well as spinal cord lesions, demyelinating lesions, facial neuritis, sciatica, peripheral neuritis, as well as vegetative nerve dysfunction, sleep disorders and other diseases. The treatment of