Folic acid and vitamin B12 can be taken together, both belong to the same category of drugs, both of which contain vitamins and can help improve the body’s resistance. Properly taken, the vitamins promote blood vessel elasticity and maintain blood viscosity while also aiding in digestion and absorption. Taking folic acid during pregnancy can help alleviate abnormalities and prevent fetal malformations. Vitamin B12 can increase the level of amino acids and vitamins in the body, alleviate endocrine disorders, and also provide sufficient nutrients to maintain the body’s nutrient requirements. Generally, these two drugs can be taken together without adverse reactions or separately.