Anti-obesity medications work by
Reducing appetite, by replicating the hormone that makes you feel full after a meal, or
Reducing fat absorption from the gastrointestinal tract.
Drug treatments can help reduce obesity-related health risks such as high blood pressure and diabetes.
They should not be used, however, as a substitute for lifestyle changes such as eating a more healthy diet or increasing the amount of physical exercise.
Drug treatments can be considered if your BMI is:
≥30 kg/m2 or
≥25 kg/m2 (with obesity-related complications, including breathing problems during sleep (OSA).