question: I have taken eskaleth 450 mg, 3x daily for several years. Due to loss of insurance I have had to change to regular release lithium which has been prescribed at 300 mg, 3x daily. At the prior dose, my blood tests routinely showed a level at the low end of the therapeutic range. It seems this new dosing is awfully low and my dr. has not been able to help me understand why it should be appropriate. Any ideas?