Inhibition of food intake in the rat

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Abstract
The effects of single oral administrations of tricyclic antidepressants (imipramine and desipramine), an atypical antidepressant (nomifensine), known anorexic agents, haloperidol, and diazepam on food intake were compared in Sprague-Dawley rats over a 4-day test period. The tricyclic antidepressants produced decreases in food intake during the total 4-day test period following their administration. In contrast, the anorexic agents (d-amphetamine, cocaine, mazindol, fenfluramine and quipazine), nomifensine, and haloperidol produced decreases in food intake only on the day of their administration. Diazepam produced an increase in food intake only on the day of its administration. In addition to revealing that high doses of antidepressants can decrease food intake, this model appears to show some specificity for tricyclic antidepressants.