title: [Effect of heat transfer in the packages on the stability of thiamine nitrate under uncontrolled temperature conditions].
abstract: To accurately predict the stability of thiamine nitrate as a model drug in pharmaceutical products under uncontrolled temperature conditions, the average reaction rate constant was determined, taking into account the heat transfer from the atmosphere to the product. The stability tests of thiamine nitrate in the three packages with different heat transfers were performed under non-isothermal conditions. The stability data observed were compared with the predictions based on a newly developed method, showing that the stability was well predicted by the method involving the heat transfer. By contrast, there were some deviations observed from the predicted data, without considering heat transfer in the packages with low heat transfer. The above-mentioned result clearly shows that heat transfer should be considered to ensure accurate prediction of the stability of commercial pharmaceutical products under non-isothermal atmospheres.
authors.affiliation: Department of Pharmaceutics, Hoshi University.
authors.forename: Toru
authors.initials: T
authors.lastname: Nakamura
authors.forename: Takayuki
authors.initials: T
authors.lastname: Yamaji
authors.forename: Kozo
authors.initials: K
authors.lastname: Takayama
mesh_terms: D004349:Drug Packaging; D004355:Drug Stability; D013696:Temperature; D013831:Thiamine / Q000737:chemistry*; D013997:Time Factors
chemical_list: D013831:Thiamine