申请人:Acosta-Zara Edgar Joel
公开号:US20080139392A1
公开(公告)日:2008-06-12
The present invention relates to biocompatible microemulsion systems designed for controlled release drug delivery applications formulated with phospholipids such as lecithin (surfactant), a lipophilic additive (linker) containing 9 or more carbons in their alkyl group and hydrophilic-lipophilic balance (HLB) of 5 or less, and a surfactant-like hydrophilic additive (linker) containing between 6 to 9 carbon atoms in their alkyl tail. The combination of linkers and phospholipids produce formulations capable of delivering high concentrations of poorly soluble drugs into epithelial tissue using low surfactant concentrations, with minimum cytotoxic side effects.
本发明涉及生物相容性微乳液系统,用于控制释放药物的应用,其配方包括磷脂类物质,如卵磷脂(表面活性剂),含有9个或更多碳原子的疏水性添加剂(连接剂),以及亲水-疏水平衡(HLB)为5或更低的类表面活性剂的亲水性添加剂(连接剂),连接剂和磷脂类物质的组合可产生配方,能够使用低表面活性剂浓度将高浓度的难溶性药物输送到上皮组织中,且具有最小的细胞毒性副作用。