(1r,4r)-6'-Fluoro-(N-methyl- or N,N-dimethyl-)-4-phenyl-4',9'-dihydro-3'H-spiro-[cyclohexane-1,1'-pyrano[3,4,b]indol]-4-amine for Treating Fibromyalgia and Chronic Fatigue Syndrome
The invention relates to a pharmaceutical dosage form comprising (1r,4r)-6′-Fluoro-(N-methyl- or N,N-dimethyl-)-4-phenyl-4′,9′-dihydro-3′H-spiro-[cyclohexane-1,1′-pyrano[3,4,b]-indol]-4-amine or a physiologically acceptable salt thereof, for use in the treatment of fibromyalgia or chronic fatigue syndrome.
