Sustained release preparation of lipophilic drugs in which the excessive initial drug release is suppressed and a sustained release is effected

摘要

A sustained release preparation of a fat-soluble drug comprising a drug dispersion wherein the fat-soluble drug and a water-soluble substance are dispersed, in a solid state at the bodily temperature of the animal or human being to which the preparation is to be administered, in a water-impermeable and biocompatible material