Gastric Emptying Rate of Drug Preparations. III. Effects of Size of Enteric Micro-Capsules with Mean Diameters Ranging from 0.1 to 1.1 mm in Man
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概要
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The gastric emptying rates of three enteric micro-capsule preparations with mean diameters of 1.1 mm and less (1.1,0.5 and 0.1 mm) were compared. The gastric emptying rate was evaluated by determining the pharmacokinetic parameters of pyridoxic acid, including V_<max> (peak excretion rate) and T_<max> (time to reach peak excretion rate) after oral administration of micro-capsules containing pyridoxal phosphate as a marker drug to five healthy subjects. When given under fasting conditions, the gastric emptying rates of these prepartions, according to T_<max>, differed significantly; the preparations with smaller particle sizes were emptied from the stomach at a faster rate than those with larger particle sizes. However, under non-fasting conditions the gastric emptying rates were virtually the same, regardless of particle size, and all the preparations were emptied from the stomach at a much slower rate than when administered under fasting conditions.
- 社団法人日本薬学会の論文
- 1992-12-25
著者
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緒方 宏泰
Department Of Biopharmaceutics Meiji College Of Pharmacy
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鹿庭 なほ子
国立衛生試験所薬品部
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鮫島 政義
Product Formulation Research Laboratory Tanabe Seiyaku Co. Ltd.
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鹿庭 なほ子
Division of Drugs, National Institute of Hygienic Sciences
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杉戸 慶子
Department of Biopharmaceutics, Meiji College of Pharmacy
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後藤 一
Department of Biopharmaceutics, Meiji College of Pharmacy
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高畑 英夫
Product Formulation Research Laboratory, Tanabe Seiyaku Co., Ltd.,
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後藤 一
Department Of Biopharmaceutics Meiji College Of Pharmacy
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杉戸 慶子
明治薬大
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高畑 英夫
Pharmaceutics Research Laboratory Tanabe Seiyaku Co. Ltd.
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鹿庭 なほ子
衛試
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