Lysine B₁₂ should be called Lysine Vitamin B₁₂, Tourette’s taking Lysine Vitamin B₁₂ doesn’t work. Lysine Vitamin B₁₂ is a combination drug that contains mainly lysine, vitamin B₁₂ and inositol. It is mainly used to accelerate children’s growth and development, improve appetite, help brain development and improve intelligence, as well as anti-anemia, enhance physical fitness and resistance to disease. Tourette’s syndrome is a chronic neuropsychiatric disorder and is not effective with this product. There are few adverse reactions to this product. Patients who are allergic to the ingredients of this product should be prohibited from using it, and when using the drug, it should be noted that the inositol in this product is an isomer of glucose. It is recommended that patients should use Lysine Vitamin B₁₂ as prescribed by their doctor. Patients with Tourette’s syndrome should seek prompt medical attention and be treated accordingly under medical supervision.