For patients with anemia caused by vitamin B12 deficiency, adenosylcobalamin tablets benefit the heart by improving the blood supply and oxygenation of the heart; while for patients without vitamin B12 deficiency, the drug generally has no significant effect on the heart. 1. With vitamin B12 deficiency: adenosylcobalamin tablets are vitamin drugs, mainly used for vitamin B12 deficiency caused by diseases such as megaloblastic anemia, malnutrition anemia, anemia in pregnancy. Long-term anemia may cause myocardial ischemia and hypoxia to the heart, which may eventually lead to cardiac insufficiency. Adenosylcobalamin Tablets are used for exogenous supplementation of vitamin B12, thus treating anemia and improving blood and oxygen supply to the heart. 2. No vitamin B12 deficiency: Adenosylcobalamin tablets for patients without vitamin B12 deficiency generally have no significant benefit for the heart. Adenosylcobalamin tablets precautions in the first use of this product should consult a physician, treatment should be regular hospital checkups; pregnant women and lactating women should be under the guidance of a physician to use the drug; neurological damage in the diagnosis of the unspecified use of caution; allergic to the product is prohibited, allergic to the person with caution, and so on. The use of specific drugs need to be carried out under the guidance of a professional physician, do not take medication without authorization, to avoid adverse reactions, resulting in adverse consequences.