CONTROLLED-RELEASE FLOATING PHARMACEUTICAL COMPOSITIONS

摘要

The invention relates to a pharmaceutical composition that includes a plurality of controlled-release coated microparticles, each comprising a floating core, at the surface of which a layer containing at least one active principle is deposited, said layer being covered by a controlled-release coating, characterized in that said floating core consists of cellulose phthalate acetate and has a bulk density of less than or equal to 0.6 g/mL, and in that said coated microparticles have a density of less than or equal to 0.7 g/mL.