Twenty-four-hour blood pressure monitoring during treatment with extended-release felodipine versus slow-release nifedipine in elderly patients with mild to moderate hypertension: A randomized, double-blind, cross-over study

被引:4
|
作者
Bonaduce, D [1 ]
Canonico, V [1 ]
Petretta, M [1 ]
Forgione, L [1 ]
Ianniciello, A [1 ]
Cavallaro, V [1 ]
Bertocchi, F [1 ]
Rengo, F [1 ]
机构
[1] UNIV NAPLES FEDERICO II, INST GERIATR & GERONTOL, NAPLES, ITALY
关键词
felodipine ER; hypertension;
D O I
10.1007/s002280050344
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Objective: This double-blind, placebo-controled randomized study was designed to compare the antihypertensive effect and tolerability of extended-release felodipine and slow-release nifedipine retard in elderly hypertensive patients. Methods: Thirty patients of both sexes (mean age 71 years) with mild to moderate essential hypertension were recruited from our hypertension outpatient clinic. After a 2-week placebo period, felodipine extended-release (felodipine ER), 10 mg once daily, nifedipine slow-release retard (nifedipine SR), 20 mg twice daily or placebo were administered to each patient for 2 weeks according to a 3 x 3 latin-square design. At the end of each treatment period, the patients underwent 24-h noninvasive blood pressure monitoring. Results: All of the patients completed the trial and no serious adverse experience was reported. In comparison with placebo, felodipine and nifedipine decreased mean 24-h diastolic blood pressure by 6.7 and 4.3 mmHg, respectively, with no significant difference between the two drugs. Mean 24-h systolic blood pressure also decreased after felodipine and nifedipine, with no difference between the two drugs. Both drugs reduced blood pressure variability, lowering the 24-h mean standard deviation of mean hourly blood pressure values. The trough:peak ratio for felodipine was 80% for systolic and 75% for diastolic blood pressure. Conclusion: Felodipine ER once daily lowers blood pressure in elderly hypertensives and is as effective as nifedipine SR twice daily. The high trough:peak ratio suggests that the dose and the between-dose interval of felodipine provides adequate therapeutic coverage.
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页码:95 / 100
页数:6
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