Cocaine and heroin causes anorexia .
Disorders that cause ( harmful ) anorexia include anorexia nervosa , severe depression , cancer , Crohn 's Disease , Ulcerative Colitis , dementia , AIDS , Acute Radiation Syndrome , and chronic renal failure and the use of certain drugs , particularly stimulants and narcotics .
Anorexia -LRB-symptom-RRB-