There is limited clinical experience with FYCOMPA overdose in humans. In a report of an intentional overdose that could have resulted in a dose up to 264 mg, the patient experienced events of altered mental status, agitation and aggressive behaviour and recovered without sequelae.
There is no available specific antidote to the effects of FYCOMPA. General supportive care of the patient is indicated including monitoring of vital signs and observation of the clinical status of the patient.
In view of its long half-life, the effects caused by FYCOMPA could be prolonged. Because of low renal clearance special interventions such as forced diuresis, dialysis or haemoperfusion are unlikely to be of value.