| 摘要 |
<p>A sustained-release tablet comprising a base tablet containing a water-swellable gelling agent and a pharmaceutically active ingredient dispersed homogeneously in said gelling agent, said base tablet being coated with a coating agent prepared by dissolving ethylcellulose and/or acetylcellulose in an organic solvent. This preparation is a sustained-release tablet which is capable of zero-order dissolution and applicable to any of water-soluble and difficultly soluble medicines, and can be prepared readily at a low cost.</p> |
