The child suffers from Tourette’s syndrome, when the condition requires can take vitamin B12, but vitamin B12 has no therapeutic effect on Tourette’s syndrome, vitamin B12 is mainly used for peripheral nervous system disease, megaloblastic anemia and so on. Children with Tourette’s syndrome can take vitamin B12 when the condition requires, but vitamin B12 has no therapeutic effect on Tourette’s syndrome. Vitamin B12 is involved in methyl conversion and folate metabolism in the body, and can promote the conversion of 5-methyltetrahydrofolate to tetrahydrofolate. When vitamin B12 is deficient, it can lead to impaired DNA synthesis and affect red blood cell maturation. This product has no significant therapeutic effect on Tourette’s syndrome. When suffering from Tourette’s syndrome, systematic treatment under the guidance of a doctor is needed, including the use of antipsychotic drugs, antidepressant drugs, psychological counseling treatment and so on.