Folic acid tablets are an anti-anemia medication and are not usually used to treat high blood pressure. Folic acid tablets belong to folic acid supplements, can be used to treat various causes of folic acid deficiency, and folic acid deficiency caused by megaloblastic anemia, chronic hemolytic anemia caused by folic acid deficiency. It can also be used as a preventive drug for pregnant and lactating women. Usually, folic acid tablets can not be used to treat high blood pressure. Patients with hypertension can take diuretics, such as hydrochlorothiazide, furosemide, etc.; beta-blockers, such as metoprolol, bisoprolol, etc.; calcium channel blockers, such as nifedipine, verapamil, etc. under the guidance of the doctor for treatment. It is recommended that patients strictly follow the doctor’s instructions to use drugs, do not change the dose of drugs or private abuse of drugs, for vitamin B12 deficiency caused by megaloblastic anemia can not be treated with folic acid alone.