Antiepileptic drug interactions in the elderly

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Scopus citations

Abstract

Introduction The elderly (≥65 years) are the fastest growing segment of the population in developed countries. In the USA, older adults presently comprise 13% of the population and are projected to increase to 20% within the next 20 years. Similar demographics exist for many European countries. With advancing age comes increasing morbidity, medication use, and adverse drug reactions. Over two-thirds of older adults have one or more chronic medical problems (Hoffman et al., 1996). As a consequence more elderly take medications than others and the elderly take more drugs per person. In the USA, almost 90% of community-dwelling elderly take one or more medications (Guay et al., 2003). Antiepileptic drugs (AEDs) are frequently prescribed in the elderly due to the high prevalence of AED-treatable neuropsychiatric disorders in this age group. For example, epilepsy is twice as common in those ≥65 years (1.5%) than in younger adults (Hauser, 1997). An estimated 1.6% of community-dwelling elderly take one or more AEDs (Nitz et al., 2000). AED use is even greater among elderly nursing home residents. Based on two national surveys, approximately 10–11% of elderly nursing home residents take at least one AED and within this group 14–19% are on two or more AEDs including combinations known to interact (Schachter et al., 1998; Garrard et al., 2000). Factors contributing to AED interactions in the elderly There are several factors associated with AED therapy in the elderly that substantially increase the risk of clinically significant drug interactions.

Original languageEnglish (US)
Title of host publicationAntiepileptic Drugs
Subtitle of host publicationCombination Therapy and Interactions
PublisherCambridge University Press
Pages273-293
Number of pages21
ISBN (Electronic)9780511545023
ISBN (Print)052182219x, 9780521822190
DOIs
StatePublished - Jan 1 2005

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