Cytarabine sodium tablets and methylcobalamin do not have which is effective, need to be under the guidance of a doctor, according to the patient’s specific condition, give appropriate medication. Cytarabine Sodium Tablet is mainly used for the treatment of neurological sequelae caused by cerebrovascular or craniocerebral injury accidents, which can increase the function of the pyramidal system, improve cerebral circulation, and promote the metabolism of cerebral substances. Some patients may have gastrointestinal reactions of relatively short duration during the use of cytarabine sodium tablets, which should not be combined with the drugs of meclofenamic acid when taking this drug. Mecobalamin commonly used dosage form for capsules, dispersible tablets, injections, tablets, etc., belongs to the treatment of peripheral neuropathy drugs, mainly used for peripheral neuropathy and megaloblastic anemia, can promote axonal transport function and axonal regeneration, involved in the synthesis of brain cells and spinal cord neurons of the thymine nucleoside, to promote the use of folic acid and the metabolism of nucleic acids, promote nucleic acid and protein synthesis effect. Some patients taking methylcobalamin may experience adverse reactions such as loss of appetite, nausea, diarrhea, vomiting, etc. It is prohibited for patients with a history of allergy to any of the excipients in the drug. It is recommended that patients under the diagnosis of the doctor, strictly comply with the doctor’s instructions to use the drug, if the symptoms continue to develop, need to go to the hospital in a timely manner, under the diagnosis of the doctor, according to the patient’s specific condition, targeted treatment.