| 摘要 |
An oral formulation for gastrointestinal drug delivery which comprises an adhesion site-controlling layer for attaching the formulation to the selecte d site in the digestive tract, a drug-carrying layer for containing a drug and an adhesive and a protecting layer for protecting the drug in the drug- carrying layer, wherein the drug-carrying layer exists between the protectin g layer and the adhesion site-controlling layer, and the adhesion site- controlling layer may attach to the protecting layer. The formulation can improve bioavailability of drugs which have low bioavailability. |
