(1r,4r)-6'-fluoro-(N-metil- ali N,N-dimetil-)-4-fenil-4',9'-dihidro-3'H -spiro(cikloheksan-1,1'-pirano(3,4,b)indol)-4-amin za zdravljenje fibromialgije in sindroma kronične utrujenosti
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.