Lysine Vitamin B12 Granules are generally not recommended for long-term use. Lysine B12 is a compounded preparation containing lysine, vitamin B12 and basalol. The main function is to accelerate growth and development in children. It stimulates appetite, eliminates xerostomia, helps children’s brain development and improves intelligence, has anti-anemia, strengthens the body and resistance to disease. Lysine Vitamin B12 Granules, as a prescription drug, should be taken according to the recommended dosage with few adverse effects. It should be contraindicated for those who are allergic to the ingredients of this product. Lysine B12 Granules need to be taken under the guidance of a doctor, do not blindly take the drug on your own to avoid adverse reactions.