XENICAL is used to assist with losing weight, maintaining a certain weight and preventing weight regain. XENICAL is used to treat adults with an initial Body Mass Index (BMI) which measures 30 or more. One way to measure if you are overweight, and how overweight you are, is to calculate your Body Mass Index (BMI).

How does Xenical help lose weight?

Xenical (orlistat) blocks some of the fat that you eat, keeping it from being absorbed by your body. Xenical is used to aid in weight loss, or to help reduce the risk of regaining weight already lost. This medicine must be used together with a reduced-calorie diet and is to used only by adults.

How fast do you lose weight after starting Xenical?

You should see some weight loss within 2 weeks after you start orlistat. Tell your doctor if your condition does not improve or if it worsens.