Comparison of admission and discharge medications in two geriatric populations.

Drug usage patterns were determined from a chart review of two groups of the elderly upon admission to and discharge from the hospital. A comparison was made between a United States group (N = 60) and a Scotland group (N = 60). The most common drugs noted in both groups were cardiovascular drugs (primarily diuretics) and vitamins and minerals. The mean number of drugs per patient in both groups was approximately four, with minimal change in number between admission and discharge. The number of drugs decreased with male sex and increasing age in the United States group and increased with male sex and increasing age in the Scotland group. The Scotland group was on more short-acting benzodiazepines, more bowel medications, more antidepressants, more antiparkinson agents, and fewer respiratory drugs than the United States group. Although both groups tended to have certain drugs deleted, Scotland patients were more likely to have narcotics discontinued and bowel medications added before discharge. These drug usage patterns demonstrate substantial polypharmacy in the elderly and the importance of selecting appropriate drugs in the elderly.