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.
提供了一种制剂,其中包含脂肪微粒的脂肪乳液,该乳液含有基本上由
脂肪酸、一种碱性
氨基酸和一种
糖类组成的稳定剂。在本发明的脂肪微粒脂肪乳液制剂中,具有平均粒径不超过100纳米的微粒是稳定的,因此这些微粒会保持在血液中,而不被肝脏吸收。因此,在给药时,使用本发明所述制备的药物制剂,药理活性可以在所需的部位表现出来。因此,该制剂作为药物运输系统的药物载体非常有用。此外,本发明的药物制剂经过冻干后,可以通过加入蒸馏
水轻松迅速地
重组成含有平均粒径不超过约100纳米的稳定脂肪微粒脂肪乳液的药物制剂,即使长时间存储后也可以。