Bianca-Denisa Cernușcă, Ionela-Amalia Bradu, Alexandru Pahomi, Dorinel Okolisan, Mihaela Maria Budiul, Gabriela Vlase, Titus Vlase
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Study of thermally induced interactions between active substances from the sartans class and various excipients
Sartans, also known as angiotensin receptor blockers, comprise a category of antihypertensive medications designed to inhibit the actions of angiotensin II (Ang II) in the body, ultimately reducing blood pressure levels. This class of compounds is derived from 2-(1-benzyl-1H-imidazol-5-yl)-acetic acid, with its origin characterized by an imidazole core that underwent various substitutions at specific positions within the heterocyclic nucleus. We investigated the behavior of Losartan, Valsartan and Irbesartan and their compatibility with various excipients used in pharmaceutical tablet formulations by FTIR spectroscopic studies, thermal behavior by thermogravimetry and differential scanning calorimetry. The aim of the study was to determine the excipients to be used in pharmaceutical formulations containing drugs from the class of sartans as active ingredients. Our study concludes by recommending precautionary measures in elaborating new solid formulations containing lactose in the case of Losartan.
期刊介绍：
Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews.
The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.
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