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首页> 外文期刊>Química Nova >Prepara??o e caracteriza??o físico-química de complexos de inclus?o entre anestésicos locais e hidroxipropil-beta-ciclodextrina
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Prepara??o e caracteriza??o físico-química de complexos de inclus?o entre anestésicos locais e hidroxipropil-beta-ciclodextrina

机译:局麻药与羟丙基-β-环糊精包合物的制备及其理化性质

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S(-) Bupivacaine (S(-)BVC) and Lidocaine (LDC) are widely used local anesthetics (LA). Hydroxypropyl beta-cyclodextrin (HP-beta-CD) is used as a drug-carrier system. The aim of this work was to characterize inclusion complexes between LA and HP-beta-CD. The affinity constants determined at different pHs show favourable complexation. The release kinetics experiments showed that S(-)BVC and LDC changed the released profiles in the presence of HP-beta-CD. Nuclear magnetic resonance experiments gave information about the interaction between LA and the cyclodextrin cavity. This study focused on the physicochemical characterization of drug-delivery formulations that come out as potentially new therapeutic options for pain treatment.
机译:S(-)布比卡因(S(-)BVC)和利多卡因(LDC)是广泛使用的局部麻醉药(LA)。羟丙基β-环糊精(HP-β-CD)用作药物载体系统。这项工作的目的是表征LA和HP-β-CD之间的夹杂物。在不同pH下测定的亲和常数显示出良好的络合度。释放动力学实验表明,在存在HP-β-CD的情况下,S(-)BVC和LDC改变了释放曲线。核磁共振实验给出了有关LA和环糊精腔之间相互作用的信息。这项研究的重点是药物输送制剂的理化特性,这些制剂可能成为疼痛治疗的新治疗选择。

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