Study on Traditional Chinese Drug Colon Targeting System / 中成药

Objective:To study possibility of traditional Chinese drug preparation of controlled drug delivered to the colonic region. Methods: After the herbs was extracted and refined, micropills was produced with pectin selected as coating material and thallium monochloride was as internal standard substance. Results: The preparation was testified to attain schedule colon target. Conclusions: This research provided a way for traditional Chinese drug preparation of colon targeting.