| 摘要 |
<p>@ A device for the controlled release and delivery of a phar- macologycally active agent, comprising a vinyl gel layer and a pharmacologically active agent uniformly dispersed in the layer in a pharmacologically effective amount, the vinyl layer comprising an emulsion polymerized polyvinyl chloride resin, a primary plasticizer for the polyvinyl chloride resin, and an organic, nonvolatile gel forming additive in an amount sufficient to form a gel.</p> |
