Preparations for medical or veterinary use, namely muramyl peptides and muramyl tripeptides, muramyl tripeptide phosphatidyl ethanolamine (MTP-PE), N-acetylmuramyl-L-ananyl-D-isoglutaminyl-L-alanine-2 (l,2-dipalmitoyl-sn-glycero-3-hydroxyphosphoryloxy) ethylamide, hexopyranose and formulations of muramyl peptides, particularly liposomal formulations, pharmaceutically acceptable forms of muramyl peptides, pharmaceutically acceptable salts of muramyl peptides, all these goods specifically used ...