Weight Loss Research: Appraisal of the clinical value of serotoninergic drugs.

Principal objectives in obesity management comprise the prevention of weight gain, the promotion of weight loss, and the treatment of obesity-related complications, including diabetes, hypertension, and depression. Serotonin agonists reduce food intake. The resultant weight loss is variable and there appears to be no way of predicting good responders, nor is there evidence that additional weight loss attributable to drug therapy is sustained once treatment is discontinued, although nonpharmacological strategies for preventing weight regain are worthy of exploration. Serotonin agonists are of clinical value if there is a short-term need for weight reduction or if long-term pharmacotherapy can be justified. This implies that sometimes the dangers of the obese state outweigh the potential hazards of drug treatment. Clearly, if the same agent also improves diabetic control, blood pressure, or depression then a longer term usage is more readily justified. The extent to which this may be achieved by the currently available 5-HT agonists is discussed.

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