Chronic pain is commonly encountered in elderly patients. About 20-50%
of community-dwelling elderly experience it, and 45-80% of nursing ho
me residents may be affected. Selection of pharmacologic therapy for t
he management of chronic pain must take into consideration the increas
ed potential for adverse effects in this population. Major classes of
drugs used to treat chronic pain (nonsteroidal antiinflammatory drugs,
opioids, antidepressants) have adverse effects that occur more freque
ntly in elderly than in younger patients. Given the often prolonged du
ration of therapy, optimal management requires minimizing the risk of
adverse reactions.