کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9918704 | 1557554 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Controlled release of furosemide from the ethylene-vinyl acetate matrix
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
داروسازی، سم شناسی و علوم دارویی
علوم دارویی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The ethylene-vinyl acetate (EVA) matrix containing furosemide was prepared by the casting method and the release patterns were observed. The solubility of furosemide was determined as a function of volume fraction of polyethylene glycol 400. The release of drug from the matrix was studied as a function of temperature and drug concentration. Plasticizers such as the citrates and the phthalates were added for preparing the membrane to increase the flexibility of the EVA matrix. The solubility of furosemide was the highest when the concentration of PEG 400 was 40% (v/v). The release rate of drug from the EVA matrix increased with increasing temperature and drug loading doses. A linear relationship was found between the release rate and the square root of the loading dose. The activation energy (Ea), which was measured from the slope of the log P versus 1000/T plots, was 12.33 kcal/mol for the 0.5% loading dose, and 11.58 kcal/mol for the 1.0% loading dose, and 11.00 kcal/mol for the 1.5% loading dose. Among the plasticizers used such as the citrates and the phthalates groups, diethyl phthalate showed the best enhancing effects in drug release. In conclusion, the application of an EVA matrix containing a plasticizer might be useful in the development of a controlled drug delivery system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Pharmaceutics - Volume 299, Issues 1â2, 11 August 2005, Pages 127-133
Journal: International Journal of Pharmaceutics - Volume 299, Issues 1â2, 11 August 2005, Pages 127-133
نویسندگان
Cheong-Weon Cho, Jun-Shik Choi, Sang-Chul Shin,