Preparation and in Vivo Evaluation of Piroxicam-Loaded Gelatin Microcapsule by Spray Drying Technique(Biopharmacy)
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概要
- 論文の詳細を見る
To develop a piroxicam-loaded gelatin microcapsule with enhanced bioavailability, a gelatin microcapsule encapsulated ethanol and piroxicam has been formulated by using gelatin as a water-soluble polymer shell. The aqueous solubility and bioavailability of piroxicam in piroxicam-loaded microcapsule in rats were then evaluated compared to piroxicam powder. The piroxicam-loaded gelatin microcapsule spherical in shape with smooth surface showed the geometric mean diameter of about 19 μm. It had the piroxicam solubility of about 1.87 mg/ml and the amount of ethanol of about 4.37 μg/mg. Furthermore, it gave significantly higher total plasma concentrations, C_<max> and area under the blood concentration-time curve (AUC) of piroxicam in rats than did piroxicam powder, indicating that the drug from gelatin microcapsule could be more orally absorbed in rats. In particular, the AUC of piroxicam in gelatin microcapsule was significantly about 2 fold increased compared to piroxicam powder. This enhanced oral relative bioavailability of piroxicam in gelatin microcapsule was contributed by the marked increase in the absorption rate of piroxicam due to the improved solubility of piroxicam. Thus, the piroxicam-loaded gelatin microcapsule developed using spray-drying technique with gelatin, sodium lauryl sulfate and ethanol would be useful to deliver piroxicam in a pattern that allows fast absorption in the initial phase, leading to better absorption.
- 公益社団法人日本薬学会の論文
- 2008-06-01
著者
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Li Dong
College of Pharmacy, Yeungnam University
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Jang Ki-Young
College of Pharmacy, Yeungnam University
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Kim Jong
College of Pharmacy, Yeungnam University
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Woo Jong
College of Pharmacy, Yeungnam University
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Yong Chul
College of Pharmacy, Yeungnam University
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Choi Han-Gon
College of Pharmacy, Yeungnam University
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Kim Jung
College Of Pharmacy Yeungnam University
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Kim Jung
韓国
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Yong Chul
Coll. Of Pharmacy Yeungnam Univ.
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Yong Chul
韓国
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Yong Chul
College Of Pharmacy Yeungnam University
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Choi Han-gon
Coll. Of Pharmacy Yeungnam Univ.
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Choi Han-gon
韓国
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Choi Han
College Of Pharmacy Yeungnam University
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Woo Jong
Coll. Of Pharmacy Yeungnam Univ.
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Kim Jong
Coll. Of Pharmacy Yeungnam Univ.
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Woo Jong
韓国
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Choi Han
Coll. Of Pharmacy Yeungnam Univ.
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Han Sung
School of Life Science and Biotechnology, Korea University
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Choi H‐g
College Of Pharmacy Yeungnam University
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Li Dong
Coll. Of Pharmacy Yeungnam Univ.
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Kim J‐s
College Of Pharmacy Yeungnam University
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LEE Yong-Bok
College of Pharmacy and Institute of Bioequivalence and Bridging Study, Chonnam National University
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YOO Bong
College of Pharmacy, Yeungnam University
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LYOO Won
School of Textiles, Yeungnam University
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PIAO Ming
College of Pharmacy, Yeungnam University
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YANG Chan-Woo
College of Pharmacy, Yeungnam University
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KIM Dae-Duk
College of Pharmacy, Chonnam National University
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Lee Yong-bok
College Of Pharmacy And Institute Of Bioequivalence And Bridging Study Chonnam National University
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Han Sung
School Of Life Science And Biotechnology Korea University
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Han Sung
School Of Textiles Yeungnam University
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Kim Jung-ae
College Of Pharmacy Yeungnam University
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Lyoo Won
School Of Textiles Yeungnam University
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Yoo Bong
College Of Pharmacy Yeungnam University
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Yoo Bong-kyu
College Of Pharmacy Yeungnam University
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Piao Ming
College Of Pharmacy Yeungnam University
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Kim Dae-duk
College Of Pharmacy Chonnam National University
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Lee Yong-bok
College Of Pharmacy Seoul National University
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Kim Jung
Department Of Biotechnology Dongseo University
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Yang Chan-woo
College Of Pharmacy Yeungnam University
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Kim Jung-ae
Coll. Of Pharmacy Yeungnam Univ.
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Kim Jong
College Of Oriental Medicine Daegu Haany University
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Li Dong
College Of Pharmacy Yeungnam University
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Kim Jong
College Of Medicine Yeungnam University
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Yoo Bong
Coll. Of Pharmacy Yeungnam Univ.
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Kim Dae-duk
College Of Pharmacy And Research Institute Of Pharmaceutical Sciences Seoul National University
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Li Dong
College of Life Sciences, Hebei University
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