Heart valve diseases are treated with heart valve repair or heart valve replacement surgeries. In a significant number of cases, valve replacement is preferred, which requires patients to use anticoagulant medication lifelong. Following successful heart valve replacement surgery, patients must adhere to certain lifelong guidelines. These guidelines include the regular use of anticoagulant medications and careful attention to diet, both of which are of great importance. The daily dosage of anticoagulant medications varies from person to person and is not fixed; some patients may use a quarter tablet daily, while others may require 1-2 tablets. It is vitally important to take medication precisely at the dosage determined by the physician based on blood INR (International Normalized Ratio) measurements.