Nephron
Original Paper
Phosphate-Binding Properties and Electrolyte Content of Aluminum Hydroxide AntacidsBalasa R.W. · Murray R.L. · Kondelis N.P. · Bischel M.D.Lutheran General Hospital, Park Ridge, Ill., USA
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Article / Publication Details
Accepted: January 20, 1986
Published online: December 05, 2008
Issue release date: 1987
Number of Print Pages: 6
Number of Figures: 0
Number of Tables: 0
ISSN: 1660-8151 (Print)
eISSN: 2235-3186 (Online)
For additional information: https://www.karger.com/NEF
Abstract
The phosphate-binding capacities of 19 liquid and solid aluminum hydroxide gel antacids were determined in vitro under varying pH conditions. The resulting data provide a basis explaining the phosphate-binding characteristics observed when patients are treated with long-term aluminum hydroxide therapy. No antacid, liquid or solid, showed significant binding at pH 1.0. Maximum phosphate binding (expressed as phosphorus; P) was observed at pH 2.0 and 3.0 for most antacids and decreased markedly at alkaline pH. The liquid antacids showed a significantly greater phosphate-binding capacity than did tablets or capsules (p < 0.01). At pH 2.0, the liquid antacids bound a mean of 22.3 mg P/5 ml. At pH 8.0 binding was reduced to a mean of 7.3 mg P/5 ml. Significant interbrand differences were observed. At pH 2.0, the solid antacids bound a mean of 15.3 mg P/tablet or capsule. At pH 8.0, binding was reduced to a mean of 5.8 mg P/tablet or capsule. Interbrand differences, while substantial, were less than those observed among the liquid antacids. Variations in sodium and potassium content were clinically insignificant for most of the antacids in this study, while the differences in phosphate-binding properties were sufficient to warrant attention in the patient with renal failure.
© 1987 S. Karger AG, Basel
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Article / Publication Details
Accepted: January 20, 1986
Published online: December 05, 2008
Issue release date: 1987
Number of Print Pages: 6
Number of Figures: 0
Number of Tables: 0
ISSN: 1660-8151 (Print)
eISSN: 2235-3186 (Online)
For additional information: https://www.karger.com/NEF
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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.
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