List of products in the National Drug Code with proprietary name . This medication is used with a doctor-approved exercise, behavior change, and reduced-calorie diet program to help you lose weight. It is used by certain overweight people, such as those who are obese or have weight-related medical problems. Losing weight and keeping it off can lessen the many health risks that come with obesity, including heart disease, diabetes, high blood pressure, and a shorter life. Liraglutide is similar to a natural hormone in your body (incretin). It works by controlling your appetite.