The present invention relates to novel biologically active glutarimide derivatives of general formula (I) or a pharmaceutically acceptable salt thereof, their use as a therapeutic agent for the treatment of eosinophilic diseases, preferably of allergic nature, in particular bronchial asthma, allergic rhinitis, polypous rhinosinusopathies, eosinophilic colitis, eosinophilic syndrome, allergic conjunctivitis, atopic dermatitis, Churg-Strauss syndrome, anaphylactic shock, Quincke's edema, eosinophilic vasculitis, eosinophylic esophagitis, eosinophilic gastroenteritis, or fibroses. The invention also relates to pharmaceutical compositions comprising glutarimide derivatives of general formula (I):