Obesity treatment drugs have the following categories: 1, non-central weight loss drugs that is, lipase inhibitors: such as orlistat, can make food fats and oils through fecal excretion, the beginning of taking patients may have digestive discomfort, oil-like stool, increased number of bowel movements, fat-soluble vitamin deficiency and other adverse reactions, resulting in malnutrition of the body, need to use drugs under the guidance of doctors; 2, central weight loss drugs: sibutramine. Through the central system to suppress appetite, reduce food intake to reduce weight, but these drugs have very large side effects, such as panic, shaking hands, dizziness, etc., especially heart patients, taking drugs may have more discomfort, it is not recommended to apply; 3, hypoglycemic drugs: metformin, in lowering blood sugar at the same time have the effect of reducing weight, suitable for fatter diabetic patients.