Alcohol and the elderly. Psychotropics and the elderly: interactions to watch for.

Alcohol can increase blood levels of diazepam, and probably of other benzodiazepines. Alcohol also potentiates the CNS-depressant effects of these drugs. Before adding a psychotropic drug in older patients, discontinue as many drugs as possible. Prescribe smaller doses and follow cardiovascular status. Determine serum levels when in doubt, especially with tricyclic antidepressants.