There are only few data available regarding the effects of depressive disorders on road safety due to methodological shortcomings. Patients with acute severe depression or manias are unqualified for driving but after clinical remission driving ability can be attested under psychiatric supervision in most cases. So far there are only few data available about a patient's fitness to drive under psychotropic medication. Regarding the effects of antidepressants on road safety depressed patients obviously benefit from treatment with newer antidepressants; however, at least some subgroups of patients do not reach the performance level of healthy subjects. Approximately 17 % of remission bipolar patients must be regarded as unable to drive and 27 % of patients with schizophrenia on discharge from hospital. Benzodiazepines are clearly associated with increased risk of road traffic accidents. Impaired driving ability of young attention deficit hyperactivity disorder (ADHS) patients is improved under treatment with methylphenidate. Counselling patients with respect to driving ability must be carried out individually taking into account factors of the illness, personality, attitudes and coping strategies as well as different psychopharmacological effects.