Pharmaceutical Dosage Forms Comprising 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
A pharmaceutical dosage form for administration twice daily, once daily or less frequently, which contains 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.