A preparation comprising a fat emulsion of fat microparticles wherein said emulsion contains a stabilizer consisting essentially of a fatty acid, a basic amino acid and a saccharide is provided. In the preparation comprising a fat emulsion of fat microparticles of the present invention, said microparticles having a mean particle diameter of at most 100 nm are stable, and so the microparticles remain in blood without being uptaken by liver. Therefore in case of administering a pharmaceutical preparation prepared by using the above-mentioned preparation of the present invention, the pharmacological activity may be expressed at a desired site. Thus the preparation is extremely useful as a drug carrier for drug delivery system. Furthermore, the pharmaceutical preparation of the present invention which is lyophilized can be easily and rapidly reconstituted into the pharmaceutical preparation comprising a fat emulsion of stable fat microparticles having a mean particle diameter of about at most 100 nm by adding distilled water, even after a long-term storage.
                            本发明提供了一种由脂肪微粒的脂肪乳液组成的制剂,其中所述乳液含有主要由
脂肪酸、碱性
氨基酸和糖组成的稳定剂。在本发明的包含脂肪微粒的脂肪乳液的制剂中,所述平均粒径不超过 100 nm 的微粒是稳定的,因此微粒在血液中不会被肝脏吸收。因此,在使用本发明的上述制剂制备的药物制剂时,可在所需部位发挥药理活性。因此,本发明制剂可作为药物载体用于给药系统。此外,本发明的冻干药物制剂即使经过长期储存,也可以通过添加蒸馏
水,轻松快速地
重组为由平均粒径最多约 100 nm 的稳定脂肪微粒组成的脂肪乳液药物制剂。