People given Contrave (bupropion SR (Wellbutrin) plus naltrexone SR) combined with an intensive program of diet, exercise, and behavior modification therapy lost an average of 9.3% of body weight compared to 5.1% for those given a placebo according to a new one-year (56-week) study. The average weight loss in the drug group was 21 lbs, reducing their body weight from 224 lbs to 203 lbs, a 9.3% weight loss, compared to an average weight loss in the placebo group was 11 lbs, reducing their body weight from 220 lbs to 209 lbs, a 5.1% weight loss. Note: This weight loss is the average for patients who either completed the entire one-year study, and the last weight measured if the patient dropped out later in the study. For example, if a patient had lost 8% after 8 months, and then dropped out of the study, a weight loss of 8% would be recorded as the amount of weight lost even though the patient did not complete the entire study.
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