The present invention relates to co-therapy for the treatment of epilepsy and related disorders comprising administering to a subject in need thereof, co-therapy with a therapeutically effective amount of 5-(4-{[(2-fluorophenyl)methyl]oxy}phenyl)- prolinamide, or a pharmaceutically acceptable salt or solvate thereof, and a therapeutically effective amount of one or more anticonvulsant and / or anti-epileptic agents.