abstract |
The present invention provides a pharmaceutical composition comprising an antagonist, an agonist, a sealant and a blocking polymer, wherein the antagonist, agonist, sealant and at least one containment polymer are both components of a single unit, Are physically separated from each other. Also provided is a method for preparing the pharmaceutical composition.n n n n Antagonists, agonists, seal coats, containment polymers, narcotic analgesics |