理想的给药系统(DDS)应可使药物选择性集中于人体的特定靶部位,在必要的时间内持续发挥药效后,尽快全部排出体外,且对其他脏器或组织无害。本文阐述今后的研究课题如下,以期逐步接近预期目标。不同给药部位的DDS经口DDS 经口给药具有如下特点:1)口服切合日常摄食形式,给药简便;2)可大量给 The ideal drug delivery system (DDS) should allow the drug to be selectively concentrated at a specific target site in the body, continue to exert its effect over the necessary time, be excreted as soon as possible and are not harmful to other organs or tissues. This article illustrates the future research topics below, with a view to gradually approaching the expected goals. DDS of different administration sites by oral DDS oral administration has the following characteristics: 1) orally adapted daily feeding form, administration is simple; 2) can be a large number of