Valproic acid is a leading mood stabilizer for the treatment of bipolar disorder. Its well-known teratogenicity limits its use in young women of childbearing age (1-3). The alternative mood stabilizers such as lithium and carbamazepine also have teratogenic potential so the treatment of bipolar disorder in young women is problematic. The difficulties are particularly acute in those young women patients who respond well to anti-bipolar therapy and maintain or begin normal interpersonal and marital relations and desire to have children.