Journal
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
Volume 48, Issue 3, Pages 1020-1023Publisher
ELSEVIER
DOI: 10.1016/j.jpba.2008.07.001
Keywords
Loratadine; Cyclodextrin; Co-crystals; Microwave irradiation; Structural analysis
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Funding
- Sanofi-Aventis Fellowship
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The majority of active pharmaceutical ingredients are poorly soluble in water. The rate-determining step of absorption is the dissolution of these drugs. Inclusion complexation with cyclodextrin derivatives can lead to improved aqueous solubility and bioavailability of pharmacons due to the formation of co-crystals through hydrogen-bonding between the components. Inclusion complexes of loratadine were prepared by a convenient new method involving microwave irradiation and the products were compared with those of a conventional preparation method. Dissolution studies demonstrated that the solubility and rate of dissolution of loratadine increased in both of the methods used. The interactions between the components were investigated by thermal analysis and Fourier Transform Infrared studies. The microwave treatment did not cause any chemical changes in the loratadine molecule. (C) 2008 Elsevier B.V. All rights reserved.
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