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LOCALLY MADE CHITOSAN COVALENTLY LINKED TO INDOMETHACIN: A NOVEL APPROACH TO FORMULATE SUSTAINED RELEASE INDOMETHACIN CAPSULE IN BASRAH

    Akhlas F. Thajeel Jawad H. Ahmed

The Medical Journal of Basrah University, 2008, Volume 26, Issue 1, Pages 6-14
10.33762/mjbu.2008.48324

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Abstract

ABSTRACT
The sustained release capsules are pharmaceutical dosage form used for the treatment of chronic rather than acute
diseases and are useful because of its convenience and less side effects. This work describes an attempt to formulate
indomethacin sustained release capsule using indomethacin covalently linked to chitosan. Chitosan was prepared by
alkaline -N-deacetylation of chitin, which was isolated from the shells of local shrimps. The yield of chitosan was
found to be 80%. This polymer was found to be white crystal, odorless and the IR spectroscopy of it was similar to a
standard reference. Chitosan has been covalently linked to indomethacin and the ratio of drug to polymer was found
to be 5:1. The chemical interaction between the drug and the polymer was proved by IR studies. In vitro release at
different pH were performed and the release of indomethacin in the prepared sustained release capsule were tested
and compared with conventional indomethacin capsule INDOMIN-25mg, and a commercial sustained release capsule
INDO-75-SR. The release of indomethacin in our product was completed within 12 hours, while the conventional
INDOMIN capsule and commercial INDO-75-SR capsule released within 2.5 and 5 hours respectively. In conclusion a
cheap, locally made chitosan can be used in formulation of sustained release capsules by covalently linked to drugs
containing carboxyl group (like indomethacin) or can be modified to have a carboxyl group.
Keywords:
    indomethacin Chitosan slow release
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(2008). LOCALLY MADE CHITOSAN COVALENTLY LINKED TO INDOMETHACIN: A NOVEL APPROACH TO FORMULATE SUSTAINED RELEASE INDOMETHACIN CAPSULE IN BASRAH. The Medical Journal of Basrah University, 26(1), 6-14. doi: 10.33762/mjbu.2008.48324
Akhlas F. Thajeel; Jawad H. Ahmed. "LOCALLY MADE CHITOSAN COVALENTLY LINKED TO INDOMETHACIN: A NOVEL APPROACH TO FORMULATE SUSTAINED RELEASE INDOMETHACIN CAPSULE IN BASRAH". The Medical Journal of Basrah University, 26, 1, 2008, 6-14. doi: 10.33762/mjbu.2008.48324
(2008). 'LOCALLY MADE CHITOSAN COVALENTLY LINKED TO INDOMETHACIN: A NOVEL APPROACH TO FORMULATE SUSTAINED RELEASE INDOMETHACIN CAPSULE IN BASRAH', The Medical Journal of Basrah University, 26(1), pp. 6-14. doi: 10.33762/mjbu.2008.48324
LOCALLY MADE CHITOSAN COVALENTLY LINKED TO INDOMETHACIN: A NOVEL APPROACH TO FORMULATE SUSTAINED RELEASE INDOMETHACIN CAPSULE IN BASRAH. The Medical Journal of Basrah University, 2008; 26(1): 6-14. doi: 10.33762/mjbu.2008.48324
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