RESUMO
OBJECTIVE:To compare therapeutic efficacy and safety of indapamide separately combined with benazepril,irbe-sartan or amlodipine for grade 2 essential hypertension(EH). METHODS:A total of 150 patients with grade 2 EH were randomly divided into benazepril group(50 cases),irbesartan group(50 cases)and amlodipine group(50 cases). 3 groups were given Indap-amide tablet 2.5 mg orally,once a day. Benazepril group was additionally given Benazepril hydrochloride tablet 10 mg orally,once a day;irbesartan group was additionally given Irbesartan tablet 150 mg orally,once a day;amlodipine group was additionally giv-en Amlodipine tablet 5 mg orally,once a day. 3 groups were treated for 12 weeks. The levels of systolic pressure,diastolic pres-sure,heart rate,total cholesterol(TC),three triacylglycerol(TG)and serum potassium as well as the occurrence of ADR were ob-served in 3 groups before and after treatment. RESULTS:The total response rate of berazopril group,irbesartar group and a mloelip-ire group had no significant difference(90.0% vs. 88.0% vs. 92.0%,P>0.05). There were no statistical significances in the levels of systolic pressure,diastolic pressure,heart rate,TC,TG and serum potassium among 3 groups before treatment(P>0.05). Af-ter treatment,systolic pressure and diastolic pressure of 3 groups were significantly lower than before,with statistical significance (P0.05). There were no statistical significance in heart rate, TC,TG of 3 groups before and after treatment and the level of serum potassium in benazepril group and irbesartan group (P>0.05). After treatment,the level of serum potassium in amlodipine group was significantly lower than before,with statistical signifi-cance (P0.05). CONCLUSIONS:The indapamide separately combined with benazepril,irbesartan or amlodipine have similar therapeu-tic efficacy for grade 2 EH,but the safety of irbesartan is better than those of benazepril and amlodipine.