The reasons for women in Europe and North America being prescribed over twice as many psychotropic drugs as men are complex. Psychiatric disorders such as depression and anxiety appear to be more common in women than in men, and women more commonly complain of psychological symptoms. There may be a gender bias in medical diagnosis and choice of medication. Sociological factors may also be involved, including the likelihood that women have fewer outlets than men for symptom control by activities outside the home (e.g. the social use of alcohol). Women also have special problems including pregnancy, lactation, child rearing and pre-menstrual tension. Probably, much use of psychotropic-drug use for women (and men) is inappropriate and not closely related to the symptoms or conditions for which they are prescribed. Furthermore, the chronic use of some psychotropic drugs, especially benzodiazepines, may compound the problem by inducing dependence and withdrawal symptoms.