Document Detail


A novel formulation of an ophthalmic beta-adrenoceptor antagonist.
MedLine Citation:
PMID:  1588458     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To minimize ocular discomfort while maintaining efficacy, a delivery system for a topical cardioselective beta-adrenoceptor antagonist, betaxolol was developed. Betaxolol was formulated at 0.25% concentration in a cationic exchange resin, as a suspension. A polyacrylic acid polymer was added to increase viscosity and to increase residence time in the cul-de-sac. No significant settling was observed throughout a four-week observation period. Thus, resuspension of the formulation by frequent shaking was not required for uniformity. In rabbits, the ocular bioavailability of 0.25% betaxolol suspension was equivalent to that of 0.5% betaxolol solution.
Authors:
R N Weinreb; R Jani
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of parenteral science and technology : a publication of the Parenteral Drug Association     Volume:  46     ISSN:  0279-7976     ISO Abbreviation:  J Parenter Sci Technol     Publication Date:    1992 Mar-Apr
Date Detail:
Created Date:  1992-06-22     Completed Date:  1992-06-22     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  8103145     Medline TA:  J Parenter Sci Technol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  51-3     Citation Subset:  IM    
Affiliation:
Department of Ophthalmology, School of Medicine, University of California, San Diego 92093.
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MeSH Terms
Descriptor/Qualifier:
Animals
Betaxolol / administration & dosage*
Ophthalmic Solutions
Rabbits
Suspensions
Chemical
Reg. No./Substance:
0/Ophthalmic Solutions; 0/Suspensions; 63659-18-7/Betaxolol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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