How thoroughly has XENICAL been tested?
The effects of XENICAL on weight loss, weight maintenance and weight regain, as well as the effects of weight loss with XENICAL on other weight-related health problems (such as type 2 diabetes, high cholesterol levels and high blood pressure), have been assessed in a 4-year diabetes-prevention study and in seven 1-to-2-year, multicenter, double-blind, placebo-controlled clinical trials. These studies included more than 7100 patients.