Abstract: The invention relates to an oral pharmaceutical dosage form providing resistance against dose dumping in aqueous ethanol and comprising a pharmacologically active ingredient embedded in a matrix material, wherein the matrix material comprises an alkyl cellulose and a heteropolysaccharide; and wherein the relative weight ratio of heteropolysaccharide to alkyl cellulose is within the range of from 1:20 to 20:1; and wherein the total content of alkyl cellulose and heteropolysaccharide is at least 35 wt.-%, relative to the total weight of the dosage form. A process of producing the dosage form and methods of using the dosage form, for example to treat pain, are also disclosed.

Abstract: The invention relates to a monolithic pharmaceutical dosage form comprising a hot melt-extruded first segment (S1) and a second segment (S2); wherein the first segment (S1) contains at least a first pharmacologically active ingredient (A1) and/or the second segment (S2) contains at least a second pharmacologically active ingredient (A2); and the segment (S1) and/or the segment (S2) is tamper-resistant and/or exhibits a breaking strength of at least 300 N.

Abstract: The invention relates to a tamper-resistant, oral pharmaceutical dosage form comprising a pharmacologically active ingredient having psychotropic action and an ethylene-vinyl acetate (EVA) polymer which provides resistance against solvent extraction, resistance against grinding, and resistance against dose-dumping in aqueous ethanol.

Abstract: The invention relates to a tamper-resistant pharmaceutical dosage form comprising one or more particles, wherein each of said one or more particles comprises a pharmacologically active ingredient and a physiologically acceptable polymer; has a breaking strength of at least 300 N; has a weight of at least 2 mg; and optionally, comprises a film-coating; wherein the total weight of the pharmaceutical dosage form is greater than the total weight of said one or more particles.

Abstract: The invention relates to a pharmaceutical dosage form comprising (i) at least one formed segment (S1), which contains a first pharmacologically active ingredient (A1) and provides prolonged release thereof, and (ii) at least one further segment (S2), which contains a second pharmacologically active ingredient (A2) and provides immediate release thereof, wherein the at least one formed segment (S1) exhibits a higher breaking strength than the at least one further segment (S2) and the at least one formed segment (S1) exhibits a breaking strength of more than 500 N.

Abstract: A tamper-resistant pharmaceutical dosage form comprising a pharmacologically active ingredient embedded in a prolonged release matrix, which comprises a prolonged release matrix material selected from the group consisting of nonionic acrylic polymers and waxy materials and which provides prolonged release of the pharmacologically active ingredient, resistance against solvent extraction, resistance against grinding, and resistance against dose-dumping in aqueous ethanol.