Patent ID: 8592490

Claim:
A self-microemulsifying drug delivery system consisting of: (i) a polyoxyethylene sorbitan fatty acid ester emulsifier; (ii) a co-emulsifier selected from glyceryl mono- or di-fatty acid esters of C 6 -C 18 fatty acids; and (iii) an oil, selected from C 6 -C 12 fatty acid triglycerides; wherein the polyoxyethylene sorbitan fatty acid ester emulsifier (i) and co-emulsifier (ii) are present in a ratio by weight of between 1:1 and 4:1 and the emulsifier and co-emulsifier, (i)+(ii), and oil (iii) are present in a ratio by weight of between 4:1 and 10 000:1; and wherein said drug delivery system is stable on addition of any amount of water.