#$%^&*AU2018201279A120180315.pdf#####SOLID DOSAGE FORMULATIONS OF AN OREXIN RECEPTOR ANTAGONIST Abstract 82500 40000 S22500 Z' ~10000 2500 0 .15 20 30 35 2Theta (*) FIG.1 The present invention is directed to a pharmaceutical composition comprising the compound suvorexant, or a pharmaceutically acceptable salt thereof, a concentration-enhancing polymer, and optionally a pharmaceutically acceptable surfactant.