目的　了解北京市老年患者的用药现状 ,为今后临床安全、有效、经济地应用药物预防和控制疾病及提高老年人生活质量提供科学依据。方法　采用北京市 2 2家医院《处方分析》课题组1998～ 1999年门诊处方数据库 ,对老年患者与总体患者的用药现状进行比较研究。用FOXPRO软件对其进行统计分析。结果　北京市老年患者就诊处方占同期调查及不同年龄人群总处方数的比例为 19.9% ;每张处方平均品种数 2 .71种 ;老年患者每百例次使用针剂比例为 18.4% ;老年用药以心血管类、维生素类用药等为主。日用药剂量相对比WHO及药品说明书的规定值低 ,但高于同期总体患者的日用药量 ,且有上升趋势 ;降压药日用药量偏大。结论　北京市老年患者就诊率、用药平均品种数、使用针剂比例、日用药量较高。应对老年患者联合用药是否存在不合理问题进行深入研究 Objective To understand the current situation of drug use in elderly patients in Beijing and to provide a scientific basis for clinical use of drugs in the prevention, prevention and control of diseases in a safe and effective manner in the future and to improve the quality of life of the elderly. Methods The outpatient prescription database from 1998 to 1999 of “Prescription Analysis” group of 22 hospitals in Beijing was used to compare the current situation of medication in elderly patients and general patients. Use FOXPRO software for statistical analysis. Results The proportion of prescriptions for senile patients in Beijing during the same period of investigation and the total number of prescriptions for different age groups was 19.9%; the average number of varieties per prescription was 2.71; the rate of injections for every hundred cases in elderly patients was 18.4% Cardiovascular, vitamin medication based. The dosage of daily medication is lower than the stipulated value of the WHO and the drug specification, but higher than the daily dosage of the overall patient in the same period with a rising trend. The daily dosage of the antihypertensive drug is relatively large. Conclusion The prevalence rate of elderly patients in Beijing, the average number of varieties to be treated, the proportion of injections used and the daily dosage of drugs are higher. In-depth study should be conducted on the existence of unreasonable problems in the combination of elderly patients