Back to table of contents Previous article Next article Communications and UpdatesFull AccessManagement Issues During Pregnancy in Women With Bipolar DisorderVerinder Sharma, M.B.B.S., and Christina Sommerdyk, M.Sc.Verinder SharmaSearch for more papers by this author, M.B.B.S., and Christina SommerdykSearch for more papers by this author, M.Sc.Published Online:1 Mar 2014https://doi.org/10.1176/appi.ajp.2014.13111493AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InEmail To the Editor: We read with interest the article by Clark et al. (1) on lamotrigine dosing in pregnant patients with bipolar I disorder. The authors report on the use of lamotrigine in eight patients with bipolar disorder, six of whom received concomitant psychotropic drugs including four women who were taking antidepressant drugs. Dosage adjustments of lamotrigine were made in response to hypomanic, manic, or depressive symptoms. It is not clear whether the dosages of concomitant psychotropic drugs remained the same during pregnancy. Of the three women requiring a dosage increase to manage symptoms, two were also taking antidepressants that can increase the recurrence of bipolar mood episodes both during and after pregnancy (2). There are no data suggesting that monitoring serum levels with corresponding adjustments to lamotrigine dosing will protect against antidepressant-led mood instability. Interestingly, the authors did not report a correlation between lamotrigine concentration and scores on rating scales for depression and mania. Thus, the conclusion that women with bipolar disorder who are treated with lamotrigine experience an increase in symptoms as a result of declining concentrations of this drug is not justified.While lamotrigine has a role in the management of bipolar disorder during pregnancy, no data on its effectiveness in the prevention of postpartum mood episodes are currently available. Moreover, lamotrigine is generally not recommended for the acute treatment of mania (3).Finally, the statement that pregnancy is a vulnerable period for recurrence of mood episodes is true for women treated at tertiary care centers with complex and often comorbid disorders and women who discontinue mood-stabilizing drugs. However, evidence from studies using nonclinical samples, retrospective studies, and studies on psychiatric hospitalization rates is suggestive of a positive effect of pregnancy on bipolar disorder (4).From the Departments of Psychiatry and Obstetrics & Gynecology, University of Western Ontario, London, Ontario, Canada; the Perinatal Clinic, London Health Sciences Centre, London, Ontario; and Regional Mental Health Care, London, Ontario.Professor Sharma has received grant support from, participated on scientific advisory boards for, or served on the speakers’ bureaus of AstraZeneca, Bristol-Myers Squibb, Cephalon, Eli Lilly, Janssen, Lundbeck, the Ontario Mental Health Foundation, Pfizer, Servier, and the Stanley Foundation. Ms. Sommerdyk reports no financial relationships with commercial interests.References1 Clark CT, Klein AM, Perel JM, Helsel J, Wisner KL: Lamotrigine dosing for pregnant patients with bipolar disorder. Am J Psychiatry 2013; 170:1240–1247Link, Google Scholar2 Viguera AC, Whitfield T, Baldessarini RJ, Newport DJ, Stowe Z, Reminick A, Zurick A, Cohen LS: Risk of recurrence in women with bipolar disorder during pregnancy: prospective study of mood stabilizer discontinuation. Am J Psychiatry 2007; 164:1817–1824Link, Google Scholar3 Yatham LN, Kennedy SH, Parikh SV, Schaffer A, Beaulieu S, Alda M, O’Donovan C, Macqueen G, McIntyre RS, Sharma V, Ravindran A, Young LT, Milev R, Bond DJ, Frey BN, Goldstein BI, Lafer B, Birmaher B, Ha K, Nolen WA, Berk M: Canadian Network for Mood and Anxiety Treatments (CANMAT) and International Society for Bipolar Disorders (ISBD) collaborative update of CANMAT guidelines for the management of patients with bipolar disorder: update 2013. Bipolar Disord 2013; 15:1–44Crossref, Medline, Google Scholar4 Sharma V, Pope CJ: Pregnancy and bipolar disorder: a systematic review. J Clin Psychiatry 2012; 73:1447–1455Crossref, Medline, Google Scholar FiguresReferencesCited byDetailsCited byRisk of Medication Exposures in Pregnancy and Lactation26 May 2021 Volume 171Issue 3 March 2014Pages 370-371 Metrics PDF download History Accepted 1 January 2014 Published online 1 March 2014 Published in print 1 March 2014