Thermoanalytical studies on complexes of furosemide with β-cyclodextrin derivatives

被引:0
作者
Amin Kreaz R.M. [1 ]
Novák Cs. [2 ]
Erös I. [2 ]
Kata M. [1 ]
机构
[1] Dept. of Pharmaceutical Technology, Szent-Györgyi Albert Med. Univ., H-6701 Szeged
[2] Inst. of Gen. and Analyt. Chemistry, Technical University of Budapest, H-1521 Budapest
关键词
Furosemide; HP-β-CD; RAMEB; Thermal analysis;
D O I
10.1023/A:1010188206790
中图分类号
学科分类号
摘要
Solid formulas obtained between furosemide and two β-cyclodextrin derivatives (HP-β-CD and RAMEB) were prepared by different methods and in various ratios (1:1 and 1:2). The inclusion complex formation between the drug and the β-CDs of 1:1 ratio was evaluated by mean of thermal analysis (DSC, TG and EGD). Supplementary techniques, such as X-ray diffraction, were also applied to interpret the results of the thermal study of physically mixed and kneaded products. Both studies demonstrated the formation of inclusion complexes in all samples except the physical mix samples; formation of true inclusion complexes was then possible only when the components were in melted form. The complexation increased the solubility and the rate of dissolution of the drug. RAMEB was found to be a better complexing agent than HP-β-CD; in both ratios it can be selected as a vehicle in furosemide tablet preparations.
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页码:115 / 122
页数:7
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