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자료유형
학술저널
저자정보
Yong, Chul-Soon (College of Pharmacy, Yeungnam University) Choi, Young-Kwon (Icure Pharmaceutical Corp. Research Institute of Advanced materials 412, Seoul National University) Kim, Yong-Il (College of Pharmacy, Yeungnam University) Park, Byung-Joo (College of Pharmacy, Yeungnam University) Quan, Qi-Zhe (College of Pharmacy, Yeungnam Universit) Rhee, Jong-Dal (College of Pharmacy, Yeungnam University) Kim, Chong-Kook (College of Pharmacy, Seoul National University) Choi, Han-Gon (College of Pharmacy, Yeungnam University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제26권 제2호
발행연도
2003.1
수록면
162 - 167 (6page)

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Liquid suppository systems composed of poloxamers and bioadhesive polymers were easy to administer to the anus and mucoadhesive to the rectal tissues without leakage after the dose. However, a liquid suppository containing diclofenac sodium could not be developed using bioadhesive polymers. since the drug was precipitated in this preparation. To develop a liquid suppository system using sodium chloride instead of bioadhesive polymers, the physicochemical properties such as gelation temperature, gel strength and bioadhesive force of various formulations composed of diclofenac sodium, poloxamers and sodium chloride were investigated. Furthermore, the pharmacokinetic study of diclofenac sodium delivered by the liquid suppository was performed. Diclofenac sodium significantly increased the gelation temperature and weakened the gel strength and bioadhesive force, while sodium chloride did the opposite. The liquid suppositories with less than 1.0% of sodium chloride, in which the drug was not precipitated, were inserted into the rectum without difficulty and leakage. Furthermore, liquid suppository gave significantly higher initial plasma concentrations and faster Tmax of diclofenac sodium than did solid suppository, indicating that drug from liquid suppository could be absorbed faster than that from solid one in rats. Our results suggested that a thermosensitive liquid suppository system with sodium chloride and poloxamers was a more physically stable, convenient and effective rectal dosage form for diclofenac sodium.

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