I just found a study in which they looked at 6238 cases of an overdose of lamotrigine, and the result was two deaths. Following is a link to this study:
pubmed.ncbi.nlm.nih.gov
Acute lamotrigine overdose: a systematic review of published adult and pediatric cases - PubMed
Most cases reporting lamotrigine exposures observed mild or no toxicity; however, large exposures were associated with severe CNS depression, seizures, cardiac conduction delays, wide complex tachycardia, and death. In adults with a serum concentration >25 mg/L, severe toxicity may occur. In pati …
pubmed.ncbi.nlm.nih.gov
