(1r,4r)-6-Fluoro-(N-methyl- or N,N-dimethyl-)-4-phenyl-4,9-dihydro-3H-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-3H-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.
