Folic acid tablets are western medicine. Folic acid tablets are mainly composed of folic acid, mainly used for the treatment of various causes of folic acid deficiency caused by megaloblastic anemia and folic acid deficiency, breastfeeding, pregnancy, women’s prophylaxis, chronic hemolytic anemia caused by folic acid deficiency. The approval number of the drug begins with “State Drug Permit H”, in which H is the initial letter of the word “chemical” in chemical drugs, representing the drug is a chemical drug, which is generally known as Western medicine. Folic acid tablets have fewer adverse reactions, allergic reactions are rare, long-term use of the drug may appear fear of food, bloating, nausea and other gastrointestinal symptoms, if a large number of patients, the patient’s urine is yellow. If the patient is vitamin B12 deficiency caused by megaloblastic anemia, can not be treated with folic acid alone. It should be noted that if patients need to take folic acid tablets, it is recommended to use them under the guidance of a doctor.