Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
Int J Pharm. 2011 Jun 30;412(1-2):115-22. doi: 10.1016/j.ijpharm.2011.03.041. Epub 2011 Apr 2.
The aim of this study was to design and formulate a novel low-irritant NSAIDs ophthalmic emulsion of flurbiprofen axetil (FBA), the prodrug of flurbiprofen (FB). FBA ophthalmic emulsion (FBA-EM) was prepared by high-pressure homogenization with caster oil as oil phase and tween 80 as emulsifying agent. Results from the stability evaluation suggested the protect effect of oil droplets on the stability of FBA. Compared with FBA-oil solution, the AUC(0→10h) of FB in aqueous humor administered in FBA-EMs exhibited 6.7-fold (F2), 4.5-fold (F3) and 4.6-fold (F4) increase. With the increment of oil content, the MRT also prolonged, which of FBA-EM F2-F4 were 5.14 ± 2.23, 5.73 ± 3.35 and 8.71 ± 0.94 h, respectively. No significant difference was found between the ocular bioavailability of FBA-EM F2 and 0.03% FB-Na eye drops. Ocular irritation evaluation revealed that FBA-EM F2 had better ocular biocompatibility than 0.03% FB-Na eye drops, even though the FBA concentration was up to 0.1%. Intraocular anti-inflammation effect evaluation showed that FBA-EM F2 had a quite good anti-inflammation effect. In conclusion, FBA-EM F2 with elevated FBA concentration to be 0.1% might represent a promising NSAIDs ophthalmic emulsion with low irritancy and improved anti-inflammation effect.
本研究旨在设计并制备氟比洛芬己酯(FBA)前药氟比洛芬(FB)的新型低刺激性 NSAIDs 眼用乳液。FBA 眼用乳液(FBA-EM)通过高压匀质法制备,以蓖麻油为油相,吐温 80 为乳化剂。稳定性评价结果表明,油滴对 FBA 的稳定性具有保护作用。与 FBA 油溶液相比,FBA-EM 中 FB 在房水中的 AUC(0→10h)分别增加了 6.7 倍(F2)、4.5 倍(F3)和 4.6 倍(F4)。随着油含量的增加,MRT 也延长,FBA-EM F2-F4 的 MRT 分别为 5.14±2.23、5.73±3.35 和 8.71±0.94 h。FBA-EM F2 与 0.03% FB-Na 滴眼液的眼部生物利用度无显著差异。眼刺激性评价结果表明,FBA-EM F2 比 0.03% FB-Na 滴眼液具有更好的眼相容性,即使 FBA 浓度高达 0.1%。眼内抗炎效果评价表明,FBA-EM F2 具有较好的抗炎效果。总之,FBA-EM F2 可将 FBA 浓度提高至 0.1%,可能代表一种具有低刺激性和改善抗炎效果的有前途的 NSAIDs 眼用乳液。