ithium, carbamazepine and valproic acid (Williams, Cheng, Mudge et al. 2002).Fibromyalgia is a disorder of the central nervous system (CNS). ???Treatments for FMS should focus on interventions with direct or indirect effects on CNS functions that influence pain sensitivity??? (Bradley, McKendree-Smith, Alarcon et al. 2002).The most intensively studied medications that modulate neurotransmitters ar