Pharmaceutical Properties of Nifedipine from a Ground Mixture with Nifedipine, Casein, Magnesium Silicate and Cellulose Acetate Phthalate.
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- SATO HIDEAKI
- Department of Pharmaceutical Sciences, Tohoku University Hospital
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- NAKAMURA HIRONORI
- Department of Pharmaceutical Sciences, Tohoku University Hospital
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- OHYAMA MIWAKO
- Department of Pharmaceutical Sciences, Tohoku University Hospital
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- KUDO YOSHIKI
- Department of Pharmaceutical Sciences, Tohoku University Hospital
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- TAKAHASHI NOBUHIKO
- Department of Pharmaceutical Formulation Research and Development, Takata Seiyaku Co., Ltd.
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- DOI KENGO
- Department of Pharmaceutical Formulation Research and Development, Takata Seiyaku Co., Ltd.
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- MIZUGAKI MICHINAO
- Department of Pharmaceutical Sciences, Tohoku University Hospital
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説明
The dissolution step of practically insoluble drugs plays an important role in drug absorption. In this paper, the pharmaceutical properties of a ground mixture of nifedipine are described. A ground mixture of nifedipine was prepared by grinding with casein, magnesium silicate, and cellulose acetate phthalate in a vibrational ball mill. The X-ray powder diffraction patterns and differential scanning calorimetry data thereafter suggested that nifedipine was present in its amorphous form in the ground mixture. The wettability of the ground mixture was better than that of the physical mixture. The solubility of amorphous nifedipine in water was also better than that in crystalline. Both the dissolution rate and the bioavailability of amorphous nifedipine in the ground mixture were significantly greater than those of the physical mixture. The above results thus suggest that a mixture grinding method not only improves the solubility of nifedipine and the dissolution profile of its preparation but also enhances its bioavailability after oral administration.
収録刊行物
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- 病院薬学
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病院薬学 23 (2), 101-107, 1997
一般社団法人 日本医療薬学会
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詳細情報 詳細情報について
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- CRID
- 1390001204776097664
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- NII論文ID
- 110001799638
- 130004299533
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- NII書誌ID
- AN00002794
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- ISSN
- 21859477
- 03899098
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- NDLデジコレ（旧NII-ELS）
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可