| 摘要 |
<p>A gastric remaining preparation having a configuration entirely different from that of the conventional ones. It comprises a swollen molding having an apparent density of less than 1, containing an acid-proof high-molecular compound as the chief ingredient and further at least a swelling aid and a drug, and having a reticular cross section. The molding can be produced by using a multi-screw extruder.</p> |
