Adverse Drug Reaction(ADR)is common in elderly >More ADR More Disease→More Drugs→More ADR Serious ADR is common Death caused by ADR serious ADR hospitalization caused by ADR 58.0% ■elde ■elderly 15%30% 50% ■othe ■others ■ elderly ■others 4Adverse Drug Reaction(ADR) is common in elderly More Disease More Drugs Serious ADR is common More ADR 58.0% hospitalization caused by Adverse Drug Reaction(ADR) is common in elderly More Drugs More ADR 4 50% hospitalization caused by ADR elderly others 15%∼30%