[Research progress on oral prolonged-release preparation of traditional Chinese medicine].

This paper reviews the lastest progress on oral prolonged-release preparation of traditional Chinese medicine. Four materials, include component, effective parts, single drug, and compound drugs of traditiong Chinese medicine, have been used to produce oral prolonged-release preparation. The main contents are study of preparation and evaluation of in vitro release. There are also some research works on integrative evaluation, pharmacokinetics and pharmacological activity of the prolonged-release preparation. It believes that the study on oral prolonged-release preparation of traditional Chinese medicine will have good prospect.