
What is Orlistat (Slim Top)?
Orlistat (Slim Top) is a medicine that helps people lose weight. It is sold under the brand names Xenical and Alli. Orlistat works by blocking fat in foods from being digested and absorbed by the body. The undigested fat then passes out of the body in bowel movements.
In clinical trials, orlistat 120 mg taken 3 times per day has shown:
- Greater weight loss compared to placebo over 1-2 years, with placebo-subtracted weight loss of 2.6-2.9%
- 21-26% of patients achieving ≥5% weight loss vs 12% with placebo
- Improved weight maintenance over 2-4 years compared to placebo






