Narcolepsy is a condition characterised by excessive daytime sleepiness, cataplexy, hypnogogic hallucination and sleep paralysis. Sleep-related eating disorder (SRED) is a parasomnia that occurs while sleeping and manifests itself as paroxysmal episodes of involuntary eating and/or drinking. Both sleep disorders often occur as primary conditions. Sleep disorders secondary to medical treatment less often occur. This report presents the case of a patient with narcolepsy and another with SRED as a result of anamnesis and polysomnography. These sleep disorders are due to recently initiated fluoxetine treatment. Sleep disorder occurring as secondary to medication has been ignored because it has eluded the clinicians.
