Misoprostol Dehydration Kinetics in Aqueous Solution in the Presence of Hydroxypropyl Methylcellulose
作者:David Toledo-Velasquez、Henry T. Gaud、Kenneth A. Connors
DOI:10.1002/jps.2600810209
日期:1992.2
Misoprostol (Searle), and E1-type prostaglandin, is known to be stabilized in the form of a solid dispersion with hydroxypropyl methylcellulose (HPMC), yet no evidence has been found for specific intermolecular interactions. In the present study, the dehydration kinetics of this prostaglandin were studied in aqueous solution in the absence and the presence of HPMC. The dispersion of the drug with HPMC
米索前列醇(Searle)和E1型前列腺素以羟丙基甲基纤维素(HPMC)的固体分散体形式稳定,但尚未发现特定分子间相互作用的证据。在本研究中,在不存在和存在HPMC的情况下,在水溶液中研究了该前列腺素的脱水动力学。当将药物与HPMC分散在pH 7.66的水溶液中时,发挥了很小但很稳定的作用。对该动力学结果的可能解释,以及缺乏在固态和溶液态均形成复杂化合物的证据,可能是HPMC通过使前列腺素在聚合物中缠结而通过物理方式限制了前列腺素水的进入而发挥其稳定作用。环境,