Psychotropic drug use in an ambulatory elderly population.

Medication histories were obtained from 3,192 ambulatory elderly persons participating in a health screening program. A total of 2,009 (63%) women and 1,183 (37%) men were included in the drug use study. Flurazepam, pentobarbital and the combination of amobarbital and secobarbital were used by 4.5, 0.6 and 0.4% of participants, respectively, and these three agents accounted for 87.6% of all prescribed hypnotic drugs. Diazepam, meprobamate and chlordiazepoxide were the most commonly used minor tranquilizers. Barbiturates were contained in nearly one fourth of minor tranquilizers used by these elderly subjects. Less than 1% (0.5%) of the participants in this program reported the use of a neuroleptic. Approximately 3% of the participants reported the use of an antidepressant drug. Nearly 90% of participants who reported the daily use of a hypnotic agent state they had been using the product on a daily basis for longer than 1 year.