In two inter-Nordic multicenter controlled studies the effect of Citalopram on elderly patients with depression and emotional disturbances has been studied. One investigation included 98 patients in whom Alzheimer type dementia (AD/SDAT) and vascular dementia (VD) had been diagnosed, many of whom also had emotional disturbances. After four weeks treatment with Citalopram (10-30 mg/daily) there was significant improvement in confusion, irritability, anxiety, depressed mood and restlessness. No effect was seen on the intellectual capacity or motor performance measured. In the other study, which was a six weeks trial comparing Citalopram and placebo, elderly patients with a treatment-requiring depression were treated. Demented as well as non-demented patients were included. The Hamilton Depression Scale, the Montgomery-Asberg Depression Rating Scale and The Clinical Global Impressions all recorded an effect of Citalopram superior to that of placebo. In both studies depressive symptoms as well as symptoms of agitation, anxiety, restlessness and irritability improved. Citalopram is therefore considered not only an antidepressive drug but also an emotional stabilizer. The drug was well tolerated by elderly often somatically ill patients. Side effects were few.