フトラフール腸溶性製剤の耐酸性および溶出性の評価
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概要
- 論文の詳細を見る
The acid-resistance of enteric coated films and dissolution patterns of Futraful enteric coated granules and tablet were monitored with U.S.P. dissolution tester in pH shift test solution, in consideration of pH values of gastrointestinal tract, that is pH of the medium was designed to change gradually 2.3 to 3.7 in the first 150min, rapidly from 3.7 to 6.2 in the following 30min, and gradually up to 6.9 after 300 min. For granules, coated films showed satisfactory acid-resistance and dissolution, because the rate of dissolution measured 210 min after the onset of the test was less than 10%. Furthermore, the rate of dissolution in the following 50 min was increased rapidly when pH of dissolution medium exceeded 6.5, while the time required to achieve 100% dissolution rate was 270 min after the onset of the test. For tablet, coated films also showed satisfactory acid resistance and dissolution, because the rate of dissolution measured 240 min after the onset of the test was 0%, and the rate of dissolution in the following 40 min was increased rapidly when pH of dissolution medium exceeded 6.7. The times for the 100% dissolution rate was 285 min.
- 日本医療薬学会の論文
- 1982-10-20
著者
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