<prompt> Normal therapeutic level of Lithium level is0.5 to 0.7 mEqlitre0.7 to 1.1 mEqlitre0.1 to 0.3 mEqlitre1.5 to 2 mEqlitre  <response>: Blood Lithium Levels in treatment of bipolar disorder Therapeutic levels 0.6-1.2 mEqL For the treatment of acute mania Prophylactic levels 0.6-1.0 mEqL For relapse prevention in bipolar disorder Toxic lithium levels 2.0 mEqL Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no.190 