Cytophosphatidylcholine Tablets and methylcobalamin are not the same class of drugs. Cytophosphatidylcholine Tablets is an activator of brain metabolism, which can promote the metabolism of brain cells, improve brain cell function, promote blood circulation in the brain, improve the state of ischemia and hypoxia of brain cells, and improve the metabolism of brain tissue. Cytarabine tablets can be used clinically for cranial trauma and cerebrovascular diseases, and also as an adjunctive treatment for Alzheimer’s disease. Methylcobalamin belongs to endogenous vitamin B12 and is mainly used for peripheral nerve diseases, which can treat polyneuritis, trigeminal neuralgia, cerebrovascular sequelae or peripheral neuropathy caused by craniocerebral trauma, and clinically alcoholic peripheral neuropathy can also be treated with methylcobalamin.