<prompt> which is the mood stabilizer with narrow therepautic indexlithiumvalproatecarbamezepinelamotrigine  <response>: - Lithium has a narrow therapeutic index - GIT diarrhea, vomiting - NEUROLOGICAL tremor, co ordination - Therapeutic level is 0.8-1.2meql - HEMODIALYSIS is the TOC for lithium toxicity Ref. kaplon and sadock, synopsis of psychiatry, 11 th edition, pg no. 935 