Oral or mucosal preparation with controlled release of active agents by coated particles

摘要

Diverse particles (2) forming the system, are contained in a substrate (1) rapidly disintegrating in body fluid, to release them. Particles with the same core (3) and the same coating (4) substances are allocated corresponding relative weight proportions of diverse groups. Similar groups have the same erosion and release behavior. Control of release rate of active material, is achieved through the mixing ratio of diverse groups of particles.