Abstract
Aging is an inevitable process in human development, which follows a time course thatcan be delayed, or hastened, by lifestyles, diseases and events. The factors that affectthe aging process can be delayed, but not prevented. This paper evaluates theneurochemical changes in the aging process and their relevance in the modality ofelderly medication. For clarity and understanding of the relevant neurobiochemicalprocess and effects, the neuroanatomical, physiological, and neurobehavioral changesare reviewed as they relate to medication in the elderly.