CONTROLLED-RELEASE DRUG PREPARATION AND METHOD FOR PRODUCING THE SAME

摘要

It is intended to provide a drug-release particle which exhibits prolonged controlled release, has a sufficient strength even if it is implanted in the bone, and has high affinity for bone tissue. According to the invention, a controlled-release drug preparation characterized by containing a large number of porous calcium phosphate particles composed of an aggregate of calcium phosphate nanocrystals to the periphery of which a drug adheres by drying in a biocompatible polymer matrix, and a method for producing the same are provided.