Take 5mg/tablet specification as an example, usually adults 3 times a day, 1 or 2 tablets each time, the specific use of drugs need to comply with medical advice. 1. Increased homocysteine in the serum is suspected to be the higher possibility of hyperhomocysteinemia, this disease is mainly drug treatment, the clinic is widely used in folic acid combined with vitamin B group treatment. 2. Usually, under the guidance of a doctor, take 5mg/tablet as an example, adults take 1 or 2 tablets 3 times a day. Children take 1 tablet 3 times daily. Pregnant women during pregnancy, nursing women preventive medicine once 0.4mg once a day. 3. This disease is mainly related to genetic factors, disease and drug factors (such as hypothyroidism, levodopa tablets), dietary factors (excessive intake of methionine-rich foods, and insufficient intake of vitamin B12, vitamin B6), age factors (homocysteine levels increase with age) and other factors. It can induce hypertension, coronary heart disease, stroke and other diseases. Patients should seek timely medical treatment and take medication under the guidance of a doctor, do not blindly self-medication.