Abstract: The invention relates to a drug combination comprising gaseous xenon and at least one antagonist of the NMDA receptors in a liquid or solid form for treating a disease caused by a dysfunction of the dopaminergic synaptic transmission in a human patient. The antagonist of the NMDA receptors is preferably selected from memantine, nitromemantine, amantadine and ifenprodil. The invention allows the normal function of the dopaminergic synaptic transmission of diseased neurons with an altered function to be reestablished.

Abstract: The invention relates to a drug combination including gaseous xenon and at least one NMDA receptor antagonist in liquid or solid form. In order to treat or slow tumour proliferation of cells in the contral nervous system in a human being, in particular astrocyte glia and/or the percursors thereof. The NMDA receptor antagonist is perferably memantine or altromemantine. The proportion of xenonis 10% to 80% by volume.

Abstract: The invention relates to a drug combination including xenon gas and at least one antioxidant, in liquid or solid form, for use in treating, slowing, or preventing neurological damage following a neurodegenerative disease in a human being. Preferably, the xenon content is 10% to 80% by volume. Also, the antioxidant is preferably vitamin E, a vitamin E analog, or a vitamin E derivative. The neurodegenerative disease is Parkinson's disease or a disease related to Parkinson's disease.

Abstract: The invention relates to a gaseous medication containing xenon, preferably in an amount of less than 75% by volume, for use by inhalation, in combination with at least one NMDA receptor antagonist in the form of a liquid or solid, in particular memantine, for treating, slowing or preventing neurological deterioration consequent upon a neurodegenerative disease, in particular Alzheimer's disease, in a human patient.