作者:Michael Brandl、Adina Magill、Varma Rudraraju、Marc S. Gordon
DOI:10.1002/jps.2600841003
日期:1995.10
Methods for improving the stability of ketorolac powder blends under elevated humidity and temperature conditions were investigated. The approaches that were examined for potentially increasing the stability of ketorolac were varying the ketorolac salt form, altering the excipient ratios, and adding antioxidants or pH modifiers to the formulation. The ketorolac powder blends were stored for 3 months
研究了在高温高湿条件下改善酮咯酸粉末共混物稳定性的方法。检查可能增加酮咯酸稳定性的方法是改变酮咯酸盐的形式,改变赋形剂的比例,并向制剂中加入抗氧化剂或pH调节剂。酮咯酸粉末共混物在75%相对湿度(RH)和40、50和60摄氏度下保存3个月。结果表明,酮咯酸的盐形式在50摄氏度下保存3个月后对稳定性有很大影响C / 75%RH。钙盐粉末混合物和游离酸粉末混合物分别仅表现出0.2%和0.5%的药物损失,而氨丁三醇盐粉末混合物表现出10.2%的药物损失。改变乳糖,微晶纤维素的比例,酮咯酸三甲胺粉末混合物中的交联羧甲基纤维素和交联羧甲基纤维素钠表明,交联羧甲基纤维素钠和微晶纤维素会破坏酮咯酸的稳定性。向酮咯酸三甲胺粉末混合物中加入没食子酸丙酯(1%w:w)可显着提高酮咯酸的稳定性。添加pH调节剂可适度改善酮咯酸的稳定性。