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      The Short-Term Effect of Adding Brimonidine 0.2% to Timolol Treatment in Patients with Open-Angle Glaucoma

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          Abstract

          Brimonidine, a highly selective α<sub>2</sub>-adrenoceptor agonist, was studied to determine its ocular hypotensive effect and side effects in patients with elevated intraocular pressure (IOP) while on continuing therapy with timolol. This was a prospective, randomized, placebo-controlled study in 15 patients with primary open-angle or pseudoexfoliation glaucoma on therapy receiving timolol 0.5% twice daily, with IOP greater than or equal to 22 mm Hg in one eye. IOP measurements, blood pressure and pulse rate were assessed on 2 days at a baseline and 1, 2, 4, 6 and 8 h later. A single drop of brimonidine 0.2% or placebo was added to treatment with timolol. The reductions in IOP at all time intervals observed with brimonidine + timolol were significantly greater than those with timolol + placebo. The maximum mean net decrease in IOP was 19.23 ± 10.60% at 4 h. Statistically significant decreases in systemic blood pressure and pulse rate without clinical symptoms were observed in the group receiving brimonidine + timolol. This study suggests that a combination of brimonidine and timolol may have potential in the treatment of glaucoma. Further clinical trials with brimonidine are indicated to assess its further role as adjunctive agent.

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          Author and article information

          Journal
          OPH
          Ophthalmologica
          10.1159/issn.0030-3755
          Ophthalmologica
          S. Karger AG
          0030-3755
          1423-0267
          1999
          August 1999
          09 July 1999
          : 213
          : 4
          : 228-233
          Affiliations
          Department of Ophthalmology, School of Medicine, Kocaeli University, Kocaeli, Turkey
          Article
          27427 Ophthalmologica 1999;213:228–233
          10.1159/000027427
          10420106
          © 1999 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          Page count
          Figures: 2, Tables: 4, References: 25, Pages: 6
          Categories
          Original Paper · Travail original · Originalarbeit

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