DUAL RELEASE PHARMACEUTICAL COMPOSITIONS COMPRISING THE COMBINATION OF A BETA-3 ADRENORECEPTOR AGONIST AND A MUSCARINIC RECEPTOR ANTAGONIST

The present invention relates to a pharmaceutical composition comprising a combination of mirabegron and solifenacin or their pharmaceutically acceptable salts, wherein the composition comprises mini-tablets, multiparticulates, inlay tablets, or bilayer tablets. The prior art discloses restrictive formulation techniques and suggests complexity for preparing the combination in a single formulation to achieve the desired technical attributes. The test formulations are stable and exhibit desired pharmaceutical technical attributes. The invention also relates to the use of the pharmaceutical composition of the present invention in the treatment of various diseases like overactive bladder and other related therapeutic indications.