Compounds which are otherwise difficult to solubilize, such as, for example, pharmaceutical actives difficult for the body to absorb, are solubilized into a composition using a solvent system that is a structured fluid. The structured fluid is a reversed cubic phase or reversed hexagonal phase material, or a combination thereof, which includes a polar solvent, a surfactant and a non-paraffinic liquid with a high octanol-water partition coefficient which does not qualify as a surfactant. The compositions thus formed are able to enhance absorption of drugs by the induction of local, transient nanopores in biomembrane absorption barriers and particularly those in which efflux mechanisms, such as those associated with P-glycoprotein and/or cytochrome 3A4, are active. The compositions and methods that are used for solubilizing pharmaceutical actives in structured fluids can simultaneously accomplish solubilization of difficultly soluble drugs and enhancement of absorption.
在其他方面难以溶解的化合物,例如人体难以吸收的药物活性物质,可使用结构流体溶剂系统溶解到组合物中。结构液是一种反向立方相或反向六方相材料,或其组合,其中包括极性溶剂、表面活性剂和
辛醇-
水分配系数较高但不属于表面活性剂的非石蜡液体。这样形成的组合物能够通过诱导
生物膜吸收屏障中的局部、瞬时纳米孔,特别是那些外排机制(如与 P 糖蛋白和/或细胞色素 3A4 相关的机制)活跃的屏障,促进药物的吸收。用于在结构液中增溶药物活性成分的组合物和方法可同时实现难溶性药物的增溶和促进吸收。