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Bulimia nervosa is an eating disorder characterized by restraining of food intake for a period of time followed by an over intake or binging period that results in feelings of guilt and low self-esteem. The median age of onset is 18. Sufferers attempt to overcome these feelings in a number of ways. The most common form is defensive vomiting, sometimes called purging; fasting, the use of laxatives, enemas, diuretics, and over exercising are also common. Bulimia nervosa is nine times more likely to occur in women than men (Barker 2003). Antidepressants, especially SSRIs are widely used in the treatment of bulimia nervosa. (Newell and Gournay 2000).