I have bipolar disorder diagnosed in 2010. I have been prescribed Lovax 300 (oxcarbazepine) two times a day as mood stabilizer. It works very well for me, except that it gives me terrible back pain especially in lower back. If I stop it in 4-5 days the back pain goes. But again when I start it the back pain returns in 4-5 days. I was given Torvate Chrono (Valproic Acid) as mood stabilizer in the past but it caused severe lethargy and sleepiness in afternoon due to high serum Ammonia levels. I can not take lithium as I have severe Diabetes and take insulin 120 units total in a day. My doctor says there is no other mood stabilizer available and Lovax (oxcarbazepine) is best mood stabilizer for me as it has min side effects. But leaves gives me horrible back pain but my Dr. does not agree that Lovax causes back pain. Can you please advise if Lovax can cause such severe back pain? Otherwise what should I do?