There is no research data to prove that orlistat can lose a few pounds in 10 days. Orlistat is a specific gastrointestinal lipase inhibitor, which can inhibit lipase hydrolysis of triglycerides and reduce fat absorption, thus controlling body weight, and is suitable for obese or overweight patients, but there is no research data to prove that Orlistat 10 days can lose a few pounds. After the use of orlistat may occur abdominal discomfort, gastrointestinal flatulence, steatorrhea, itching, rash, urticaria and other adverse reactions. It is contraindicated in chronic malabsorption syndrome, cholestasis, organic obesity (e.g., hypothyroidism), organ transplant recipients, and those taking cyclosporine and not overweight. Orlistat is recommended for use under medical supervision.