| 摘要 |
The present invention relates to a controlled-release pharmaceutical preparation including a drug-containing solid core having a coating thereon, said coating essentially consisting of a water Insoluble polymer with a predetermined amount of particles of a water soluble, pore-forming agent dispersed therein, wherein the pore-forming agent is selected from the group consisting of potassium bitartrate, creatine, aspartic acid, glutamic acid and inosine. |
