What happens if I overdose on Topamax (Topiramate)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Overdose symptoms may include drowsiness, dizziness, agitation or depression, blurred vision, problems with speech or balance, stomach pain, chest pain, fast or pounding heartbeats, feeling light-headed, fainting, and seizure (convulsions).