Relationship To Antidepressants
Most mood stabilizers are purely antimanic agents, meaning that they are effective at treating mania and mood cycling and shifting, but are not effective at treating depression. The principal exceptions to that rule, because they treat both manic and depressive symptoms, are lamotrigine and lithium carbonate. While an antimanic agent such as valproic acid or carbamazepine cannot treat depression directly as the former two drugs can, it is widely thought to help ward off depression in bipolar patients by keeping them out of mania and, thus, preventing their moods from cycling.
Nevertheless, an antidepressant is often prescribed in addition to the mood stabilizer during depressive phases. This brings some risks, however, as antidepressants can induce mania, psychosis, and other disturbing problems in bipolar patients — in particular, when taken alone, but sometimes even when used with a mood stabilizer. Antidepressants' utility in treating depression-phase bipolar disorder is unclear.
Use of mood stabilizers and anticonvusants such as lamotrigine, carbamazapine, valproate and others may lead to chronic folate deficiency, potentiating depression. Also, "Folate deficiency may increase the risk of depression and reduce the action of antidepressants." L-methylfolate (also formally known as 5-MTHF or Levofolinic acid), a centrally acting trimonoamine modulator, boosts the synthesis of three CNS neurotransmitters: dopamine, norepinephrine and serotonin. Mood stabilizers and anticonvulsants may interfere with folic acid absorption and L-methylfolate formation. Augmentation with the medical food L-methylfolate may improve antidepressant effects of these medicines, including lithium and antidepressants themselves, by boosting the synthesis of antidepressant neurotransmitters.
Read more about this topic: Mood Stabilizer
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