One study (with two groups, a placebo group and a Xenadrine group) had shown that the group using the drug had achieved 759% more weight loss than the placebo group in six weeks. Thos group also had much more of an increase in lean muscle mass than the placebo group. Encouraging news from these trials has indicated that the participants did not suffer any negative side effects.
Clinical trials on Xenadrine have concluded that the drug increased average metabolic rates by as much as 13.4%. The study also concluded that participants consumed 5% more calories than people using selected other weight drugs. It now contains norambrolide. This fermented sage compound has been shown in unpublished in-vitro research to increase levels of a cellular messenger called Cyclic Adenosine Monophosphate (CAMP).
Although results have been encouraging, weight loss is realistically healthier when approached using traditional means that include eating a well balanced diet in combination with taking regular physical activity. You should consult your doctor prior to beginning a course of such treatments for weight loss and only try such methods after having tried and failed to achieve desired results using these more traditional means.