Semenov Federal Research Center for Chemical Physics RAS, Kosygin 4, 119991 Moscow, Russia.
Faculté de Pharmacie, Université Paris-Saclay, 17 Avenue des Sciences, 91400 Orsay, France.
Molecules. 2022 Nov 15;27(22):7904. doi: 10.3390/molecules27227904.
This study presents the kinetic modeling of the natural long-term aging of the pharmaceutical substance as well as the intact tablets of Diclofenac. Datasets are collections of near-infrared spectra acquired from the intact tablets packed in plastic blisters and the spectra of the pure substance. Fresh samples and samples at different stages of degradation are analyzed. No methods of accelerated aging were applied. Multi-step application of MCR-ALS in its soft version followed by the kinetic modeling of the results helps to propose a generic degradation mechanism; which includes: a global kinetic model; approximations of the NIR spectra of the intermediate and product; rough estimates of rate constants. We study tablets in blister packs; exactly as they are presented in pharmacies; and this is important from a practical point of view.
本研究提出了药物物质自然长期老化的动力学模型，以及双氯芬酸完整片剂的动力学模型。数据集是从包装在塑料泡罩中的完整片剂和纯物质获得的近红外光谱的集合。分析了新鲜样品和不同降解阶段的样品。未应用加速老化方法。多步应用软式 MCR-ALS 及其结果的动力学建模有助于提出通用的降解机制；其中包括：全局动力学模型；中间产物和产物的 NIR 光谱的近似；速率常数的粗略估计。我们研究泡罩包装中的片剂；就像它们在药店中展示的那样；从实际的角度来看，这一点很重要。
