期刊
INTERNATIONAL JOURNAL OF PHARMACEUTICS
卷 363, 期 1-2, 页码 214-216出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijpharm.2008.07.008
关键词
Indomethacin ethyl ester; Indomethacin; Polymeric nanocapsules; Pharmacokinetics
资金
- CAPES/Brazil
- CNPq/Brazil
Goals were to evaluate indomethacin ethyl ester-nanoencapsules (IndOEt-NC) pharmacokinetics in rats and the in vivo ester conversion to indomethacin (IndOH). After i.v. and oral administration exclusively IndOH was detected in plasma. The AUC(IndOEt-NC)/AUC(IndOH) ratio after i.v.. dosing was 0.68, accounting for dose and molecular weight differences, probably due to increased IndOH clearance after IndOEt-NC administration (alpha = 0.05). The results confirm that antiedematogenic activity reported for IndOEt-NC is due to IndOH. Encapsulation did not protect the ester which in vivo is rapidly released and converted to IndOH, acting as a pro-drug. (c) 2008 Elsevier B.V. All rights reserved.
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