Abstract: The present invention relates to an immediate release solid oral pharmaceutical composition comprising an effective amount of Tizanidine or its pharmaceutically acceptable salts, esters, solvates, polymorphs, stereoisomers or mixtures thereof. The solid oral dosage form comprises one or more methacrylic acid copolymers or its derivatives and is bioequivalent to the commercially available counterpart (ZANAFLEX® capsule) after oral administration. The invention also relates to a process for preparation of a pharmaceutical capsule dosage form comprising an effective amount of Tizanidine Hydrochloride wherein, the dosage form comprises methacrylic acid copolymer or its derivatives.

Abstract: The present invention relates to an immediate release solid oral pharmaceutical composition comprising an effective amount of Tizanidine or its pharmaceutically acceptable salts, esters, solvates, polymorphs, stereoisomers or mixtures thereof. The solid oral dosage form comprises one or more methacrylic acid copolymers or its derivatives and is bioequivalent to the commercially available counterpart (ZANAFLEX® capsule) after oral administration. The invention also relates to a process for preparation of a pharmaceutical capsule dosage form comprising an effective amount of Tizanidine Hydrochloride wherein, the dosage form comprises methacrylic acid copolymer or its derivatives.

Abstract: The present invention relates to a solid oral pharmaceutical composition comprising an effective amount of Tizanidine or its pharmaceutically acceptable salts, esters, solvates, polymorphs, stereoisomers or mixtures thereof. The solid oral dosage form of the present invention is free of non-pareil seeds. The invention also relates to a process for the preparation of a pharmaceutical composition comprising an effective amount of Tizanidine wherein, the dosage form is free of non-pareil seeds.