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Signs and Symptoms: Overdoses of topiramate have been reported. Signs and symptoms included convulsions, drowsiness, speech disturbance, blurred vision, diplopia, impaired mentation, lethargy, abnormal coordination, stupor, hypotension, abdominal pain, agitation, dizziness and depression. The clinical consequences were not severe in most cases, but death have been reported after overdoses involving topiramate. Topiramate overdose has resulted in severe metabolic acidosis.
Treatment: In acute topiramate overdose, if the ingestion is recent, the stomach should be emptied immediately by lavage or by induction of emesis. Activated charcoal has been shown to adsorb topiramate in vitro. Hemodialysis is an effective means of removing topiramate from the body.
