据国内外大量人口资料报道,老年人(65岁以上)约占人口总数的10％,而且有日益增多趋势,由于年老体弱多病,其医药费占总费用的23％,治疗时用药品种亦较多,约有1/4老年病人同时服用4-6种药物,因此其副作用发生率也较大,很多药物老年人比青年人更易引起副作用。经临床研究表明,其副作用的发生大多属于药物代谢动力学方面的原因,只 According to a large number of population data at home and abroad reported that the elderly (over the age of 65) accounts for about 10% of the total population, but also a growing trend, due to frail illness, the medical costs accounted for 23% of the total cost of medication when the drug is also more More than one-quarter of elderly patients taking 4-6 drugs at the same time, so the incidence of side effects are also larger, many drug elderly people are more likely to cause side effects than young people. Clinical studies have shown that the incidence of side effects mostly belong to the pharmacokinetic aspects, only