| 摘要 |
The invention relates to dosage forms which are provided with protective coatings. A core containing at least one acidic active ingredient is provided with at least one inner and outer coating layer in said dosage forms. The outer layer contains a cationic polymer as component A, said polymer being an emulsion polymerizate of N,N-diethylaminoethylmethacrylate and other monomers. |
