Diet Drug Rimonabant Tied to Depression, Anxiety

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Padwal's team also noted that the U.S. National Institute for Clinical Excellence recommends stopping the use of weight-loss drugs if 5 percent of total body weight is not lost after three months.

Commenting on Padwal's study, Dr. Gareth Williams, dean of the Faculty of Medicine & Dentistry at the University of Bristol in the U.K., wrote in an accompanying editorial: "Selling anti-obesity drugs over the counter will perpetuate the myth that obesity can be fixed simply by popping a pill and could further undermine the efforts to promote healthy living, which is the only long-term escape from obesity."

More information

For more information on obesity, visit the U.S. National Institute of Diabetes and Digestive and Kidney Diseases.