Osmotic continuous dispersible oral projection system containing pharmaceutically acceptable active agents with improved core membrane adhesion properties

摘要

The present invention relates to an oral osmotic system for the control and continuous administration of metoprolol over a lengthy time interval, which contains a uniform, separate internal layer of water-soluble coating agent. Water-soluble coating agents which can be used are HPMC, PVP, optionally mixed with polyethylene glycol.