The invention relates to azacyclyl-substituted arylthienopyrimidinones and their derivatives, of the Formula (I)and their physiologically tolerated salts and physiologically functional derivatives, their preparation, medicaments comprising at least one azacyclyl-substituted arylthienopyrimidinone according to Formula (I) or its derivative, and the use of the azacyclyl-substituted arylthienopyrimidinones according to Formula (I) and their derivatives as MCH antagonists.
