Topiramate Trial for Compulsive Buying

Inclusion Criteria: * Match criteria for compulsive buying, according to McElroy et al. (1994), confirmed by semi-structured interview modeled after the Schedules for clinical assessment in neuropsychiatry (SCID) * woman within fertility age have to be already practicing an acceptable contraception method and to be negative at a pregnancy test Exclusion Criteria: * illiteracy * pregnancy and breastfeeding for woman * previous history of alcohol abuse/dependence with current elevation of liver enzymes, or a present diagnosis of alcohol abuse/dependence * past or current drug abuse/dependence, except for nicotine * history of current or past Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders diagnosis of bipolar disorder, schizophrenia, psychosis or any neuropsychiatric condition causing cognitive impairment * a history of suicide attempt or acute suicide risk * severe depression indicated by a score higher than 30 at the beck depression inventory * current participation on psychotherapy or use of pharmacological agent or experimental dispositive for compulsive buying in the past 3 months * current use of psychotropic drugs, except benzodiazepines * cardiovascular disease including a history of heart attack, stroke, arrhythmia, cardiac failure in the past 5 years. Uncontrolled high blood pressure. * chronic or acute renal or liver failure, as well as Retinopathy and thyroidopathy * a personal or family history of nephrolithiasis * immunodeficiency * any blood dyscrasia * contraindication or allergy to topiramate * history of seizures * dont't have a phone number for contact * live alone and don't have a person that can inform about the shopping behavior