Preparation Method of Sustained-Release Microcapsules Having Good Initial Burst Inhibiting Property and the Microcapsules Thereby

摘要

Disclosed is a method for preparing a longer sustained-release formulation containing bioactive substances. More particularly, the present invention provides a method for preparing longer sustained-release microcapsules comprising: adding an emulsion including bioactive substances, biocompatible polymer and polyvinylpyrrolidone to an aqueous solution.