Xenical, with its active ingredient orlistat, is a prescription medication designed to aid in weight loss by blocking the absorption of some of the fat from the food you eat. It is primarily prescribed for individuals who are overweight or obese and is often recommended to be used in conjunction with a reduced-calorie diet and regular physical activity. Xenical works directly in the digestive system and does not influence the appetite center in the brain, making it different from appetite suppressants. It is intended for use in adults and is taken in capsule form, usually three times a day with each main meal that contains fat. By preventing a portion of dietary fat from being absorbed, Xenical can help to reduce the number of calories that enter the body, thereby assisting in weight loss and helping to improve related health conditions.