Pharmaceutical or nutraceutical preparation, tablet, gelatin or HPMC capsule, and use of one or a mixture of a plurality of polymers or copolymers

摘要

pharmaceutical or nutraceutical preparation, tablet, gelatin or hpmc capsule, and use of one or a mixture of a plurality of polymers or copolymers the present invention relates to a pharmaceutical or nutraceutical preparation comprising (a) a core containing a pharmaceutical active substance or nutraceutically active; and (b) an inner control layer around the core comprising (i) one or a mixture of a plurality of (meth) acrylate copolymers that carry a cationic group or a group that can be converted to a cationic group, and (ii) one or a mixture of a plurality of polymers or copolymers that carry an anionic group or group that can be converted to an anionic group; and (c) an outer control layer comprising one or a mixture of a plurality of polymers or copolymers carrying an anionic group or group that can be converted to an anionic group and tablets or capsules comprising them.