The invention concerns solid orally administerable 5-chlorine pharmaceutical dosage forms with rapid active principle release 5-chlorine--({(5)-2-oxo-3-[4-(3-oxo-4-morpholinyl)-phenyl]-1,3-oxazolidin-5-yl}-methyl)-2-thiophene carboxamide, which are in amorphous form and/or contain thermodynamically metastable crystal modification and have a rapid active principle release, and to methods for the production thereof, their use as medicaments, their use for the prophylaxis, secondary prophylaxis and/or treatment of diseases as well as to their use for producing a medicament for the prophylaxis, secondary prophylaxis and/or treatment of diseases.
