为无形固体分散物优化非沉积溶解测试:探索样本处理变量
Lucas José de Alencar Danda1, Alane Rafaela de Carvalho Amaral1, José Lamartine Soares-Sobrinho1
1Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife 50740-521, PE, Brazil.
样品的制备方法对无形药物溶解的测试有很大的影响. 注射器过和时间延迟改变了结果,这对于理解无形固体分散 (ASD) 和它们的动态溶解性概况至关重要.
科学领域:
- 制药科学 制药科学
- 药物运输 药物运输 药物运输
- 物理化学 物理化学
背景情况:
- 无形固体分散 (ASDs) 提供增强的药物溶解性和生物可用性.
- 准确的溶解测试对于预测ASDs体内表现至关重要.
- 了解影响溶解的因素是开发有效无形药物配方的关键.
研究的目的:
- 调查样品处理方法,时间延迟和样品制备对无形药品溶解的影响.
- 在沉没和不沉没溶解条件下评估这些变量.
- 阐明这些因素如何影响ASD的动态溶解性概况.
主要方法:
- 评价离心与注射器过用于样本处理.
- 评估样本采集和处理之间的时间延迟 (0,2,24小时).
- 使用裸体粉末,囊和药片作为样品制剂.
- 进行了控制超和的沉降和不沉降溶解实验.
- 采用无形固体分散剂 (ASDs) 低置换基纤维素 (L-HPC) 和示范药物 (印米他辛,波萨可纳).
主要成果:
- 在不沉降条件下,注射器过显著降低了溶解药物度,这可能是由于降水.
- 收集和定量之间的时间延迟 (2或24小时) 在非沉没条件下引起了实质性的度变化,特别是在注射器过的情况下.
- 与注射器过相比,离心法显示时间延迟的影响较小.
- 配方延迟显著影响了溶解结果,影响了动力溶解度评估.
结论:
- 样品制备方法和时间延迟是影响无形药物的溶解测试的关键变量.
- 注射器过和延迟分析可能会导致伪造的结果,特别是在不沉没的条件下.
- 对无形固体分散的准确评估需要仔细考虑和优化样品处理和加工步骤,以避免误导性动力溶解度数据.
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