• A randomized, parallel, controlled study was conducted to evaluate the safety and efficacy of isradipine, 2.5 to 10 mg orally twice a day, compared with propranolol hydrochloride, 60 to 240 mg orally twice a day, in 78 hypertensives whose supine diastolic blood pressure was greater than 95 mm Hg while receiving 50 mg/d or more of hydrochlorothiazide. Isradipine or propranolol was titrated during a 10-week double-blind phase to achieve a supine diastolic blood pressure below 90 mm Hg while a fixed dose of hydrochlorothiazide was maintained. Supine diastolic blood pressure was reduced by 10 mm Hg in 88% of the isradipine/hydrochlorothiazide-treated and 83% of the propranolol/hydrochlorothiazide-treated groups and to less than 90 mm Hg in 55% of the isradipine/hydrochlorothiazide-treated and 69% of the propranolol/hydrochlorothiazide-treated patients. There was no significant difference in supine blood pressure reduction between either group, but there was a 3- to 4–beats per minute increase in supine heart rate in isradipine-treated patients and an expected 15- to 20–beats per minute decrease in heart rate in propranolol-treated patients. Five of 7 patients in the isradipine-treated group and 8 of 9 patients in the propranolol-treated group discontinued the therapy because of adverse reactions or treatment failure. Using Fisher's Exact Test, we found no significant difference in the relative frequency of individual adverse reactions between groups, although the absolute adverse reaction frequency was significantly higher with isradipine. This study demonstrates the effectiveness and safety of supplemental isradipine in the treatment of hypertension not controlled by hydrochlorothiazide alone.
(Arch Intern Med. 1989;149:2453-2457)
Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more
Subscribe for full-text access to content from 1998 forward and a host of useful features
Activate your current subscription (AMA members and current subscribers)
Purchase Online Access to this article for 24 hours
Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature
Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal
Instructions
Thank you for submitting a comment on this article. It will be reviewed by JAMA Internal Medicine editors. You will be notified when your comment has been published. Comments should not exceed 500 words of text and 10 references.
Do not submit personal medical questions or information that could identify a specific patient, questions about a particular case, or general inquiries to an author. Only content that has not been published, posted, or submitted elsewhere should be submitted. By submitting this Comment, you and any coauthors transfer copyright to the journal if your Comment is posted.
* = Required Field
Disclosure of Any Conflicts of Interest* Indicate all relevant conflicts of interest of each author below, including all relevant financial interests, activities, and relationships within the past 3 years including, but not limited to, employment, affiliation, grants or funding, consultancies, honoraria or payment, speakers’ bureaus, stock ownership or options, expert testimony, royalties, donation of medical equipment, or patents planned, pending, or issued. If all authors have none, check "No potential conflicts or relevant financial interests" in the box below. Please also indicate any funding received in support of this work. The information will be posted with your response.
Some tools below are only available to our subscribers or users with an online account.
Download citation file:
Web of Science® Times Cited: 7
Customize your page view by dragging & repositioning the boxes below.
More Listings atJAMACareerCenter.com >
and access these and other features:
Register Now
Enter your username and email address. We'll send you a link to reset your password.
Enter your username and email address. We'll send instructions on how to reset your password to the email address we have on record.
Need assistance?
Athens and Shibboleth are access management services that provide single sign-on to protected resources. They replace the multiple user names and passwords necessary to access subscription-based content with a single user name and password that can be entered once per session. It operates independently of a user's location or IP address. If your institution uses Athens or Shibboleth authentication, please contact your site administrator to receive your user name and password.