The present invention relates to solid, modified-release pharmaceutical dosage forms which can be administered orally and comprise 5-chloro-N-({(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-1,3-oxazolidin-5-yl}methyl)-2-thiophenecarboxamide, and process for their production, their use as medicaments, their use for the prophylaxis, secondary prophylaxis and/or treatment of disorders, and their use for producing a medicament for the prophylaxis, secondary prophylaxis and/or treatment of disorders.