The invention relates to a pharmaceutical composition comprising a first pharmacologically active ingredient selected from (1r,4r)-6-fluoro-N,N-dimethyl-4-phenyl-4,9-dihydro-3H-spiro [cyclohexane-1,1-pyrano[3,4,b]indol]-4-amine and the physiologically acceptable salts thereof, and a second pharmacologically active ingredient which is an anticonvulsant selected from the group consisting of retigabin, lamotrigine, lacosamide, levetiracetam, carbamazepine, sultiame, phenacemide, felbamate, topiramate, pheneturide, brivaracetam, selectracetam, zonisamide, stiripentol, beclamide, mexiletin, ralfinamide, methyl- phenobarbital, phenobarbital, primidone, barbexaclone, metharbital, ethotoin, phenytoin, amino(diphenylhydantoin) valeric acid, mephenytoin, fosphenytoin, paramethadione, trimethadione, ethadione, ethosuximide, phensuximide, mesuximide, clonazepam, lorazepam, diazepam, clobazam, oxcarbazepine, eslicarbazepine, rufinamide, valproic acid, valpromide, aminobutyric acid, progabide, tiagabine, and the physiologically acceptable salts thereof.La presente invención se relaciona con una composición farmacéutica que comprende un primer ingrediente farmacológicamente activo seleccionado de (1r,4r)-6´-fluoro-N,N-di metil-4-fenil-4´,9´-dihidro-3´H-espiro[ciclohexan-1,1´-pirano[3,4 ,b]indol]-4-amina y las sales fisiológicamente aceptables del mismo, y un segundo ingrediente farmacológicamente activo que es un anticonvulsivante seleccionado del grupo que consiste de retigabina, lamotrigina, lacosamida, levetiracetam, carbamazepina, sultiama, fenacemida, felbamato, topiramato, feneturida, brivaracetam, selectracetam, zonisamida, estiripentol, beclamida, mexiletina, ralfinamida, metilfenobarbital, fenobarbital, primidona, barbexaclona, metarbital, etotoina, fenitoína, ácido amino (difenilhidantoina) valérico, mefenitoína, fas fenitoína, parametadiona, trimetadiona, etadiona, etosuximida, fensuximida, mesuximida, clonazepam, lorazepam, diazepam, clobazam, oxcarbazepina, eslicarbaz