3.小剂量,联合用药据临床研究,老年单纯收缩期高血压,尤其2、3级高血压(收缩期血压≥160毫米汞柱),60%以上需要用2种以上降压药物联合应用,才能取得达标(收缩压140毫米汞柱)的理想效果。联合用药的优点是:疗效叠加,剂量减小,不良反应减少。美国高血压指南(J N C7)建议,当足量 3. Small doses, combination therapy According to clinical studies, elderly isolated systolic hypertension, especially 2,3 hypertension (systolic blood pressure ≥ 160 mm Hg), more than 60% need to use two kinds of antihypertensive drugs combined, In order to achieve the desired (systolic blood pressure 140 mmHg) the desired effect. The advantages of combination therapy are: therapeutic effect superposition, dose reduction, adverse reaction decrease. The American Hypertension Guide (J N C7) recommends that when adequate