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      Plasma Levobunolol Levels following Topical Administration with Reference to Systemic Side Effects

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          Abstract

          We determined the plasma level of levobunolol in normal volunteers after a single topical instillation of 0.5 or 1% levobunolol in both eyes, and after twice-daily instillations for 1 week. Levobunolol levels were detected within 1 h following acute instillation. During the study, mean plasma levels ranged from 0.1 to 0.3 ng/ml for the 0.5% group and 0.3 to 0.6 ng/ml for the 1% group. The highest individual plasma level was 1.2 ng/ml, which occurred in 1 patient receiving 1% levobunolol. After 1 week of twice-daily instillation mean plasma levels were similar to those observed after acute instillation. Minimal cardiovascular changes were observed in the 0.5% group while decreases in heart rate and systolic blood pressure were observed in the 1% treatment group.

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          Author and article information

          Journal
          OPH
          Ophthalmologica
          10.1159/issn.0030-3755
          Ophthalmologica
          S. Karger AG
          0030-3755
          1423-0267
          1987
          1987
          31 March 2010
          : 194
          : 4
          : 194-200
          Affiliations
          Departments of Ophthalmology Clinical Research and Drug Metabolism and Pharmacokinetics, Allergan Pharmaceuticals, a division of Allergan Incorporation, Irvine, Calif., USA
          Article
          309765 Ophthalmologica 1987;194:194–200
          10.1159/000309765
          3306546
          © 1987 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
          Pages: 7
          Categories
          Original Paper

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