<prompt> Weight gain is seen in all of the following except: March 2009PhaeochromocytomaHypothyroidismInsulinomaCushings syndrome  <response>: Ans. A: Phaeochromocytoma Medical causes of weight gain: Olanzapine Ethinylestradiol Trifluperidol Orchidectomy Pizotifen Hypothyroidism Clozapine Mianserin Cyproterone Haloperidol Cushings syndrome Insulinfinsulinoma Prednisolone Testosterone Growth hormone secreting pituitary tumour Phaeochromocytoma is associated with weight loss. 