Clinically significant anxiety symptoms are common during the postpartum period and frequently complicate the treatment of postpartum depression. While SSRIs are indicted for the treatment anxiety symptoms, especially when they co-occur with depression, many women may need to use a benzodiazepine for managing more severe symptoms of anxiety or insomnia.
Postpartum psychosis is the most severe form of postpartum psychiatric illness, occurring in approximately 1 to 2 per 1000 women after childbirth. Although bipolar disorder is a risk factor for postpartum psychosis, a substantial number of women who develop postpartum psychosis have no history of psychiatric illness and experience psychiatric illness only in the context of childbearing. What may cause or trigger postpartum psychosis in this population is not well understood.
Because breastfeeding has many psychological and medical benefits for both the mother and her child, many women would like to breastfeed. However, all medications taken by the mother are secreted into the breast milk. While various studies have addressed the safety of antiepileptic drugs (AEDs) in nursing infants, none have systematically assessed the long-term effects of exposure to these drugs on the cognitive development of children exposed to these agents through breastfeeding. This is an especially important issue as it has been demonstrated that certain AEDs, most notably valproic acid, may negatively affect the developing brain, a process which occurs in utero and into the first few decades of the child’s life.
In the July 2010 issue of Current Psychiatry, you will find a thorough review on the evaluation and treatment of insomnia in women across the life cycle. The bottom line is that many women experience insomnia during times of hormonal transition. The authors provide some useful guidelines for evaluating women who present with sleep problems (taken from Table 2):
In treating pregnant women with mood or anxiety disorders, we tend to focus primarily on the reproductive safety of psychotropic medications; however, it must be recognized that withholding or withdrawing pharmacologic treatment for depression or anxiety during pregnancy may carry some degree of risk. Untreated psychiatric illness in the mother cannot be considered a benign event, and a number of studies have indicated that depression during pregnancy may negatively affect pregnancy outcomes (reviewed in Bonari 2004).
Anticonvulsants are not only used for the treatment of epilepsy but are now used with increasing frequency for the treatment of mood disorders, such as bipolar disorder. Recent studies have indicated that anticonvulsants may negatively affect bone mineral density, as well as increase fracture risk. This seems to be especially common with the older anticonvulsants (e.g., phenobarbital, carbamazepine, phenytoin, and valproate); however, the data regarding lamotrigine and other newer anticonvulsants is much more limited. While bone loss is more often seen with long-term use of these medications, several reports indicate that decreased bone density may also be detected within the first 1-5 years of use.
After last week’s post, we received several comments regarding the use of mood stabilizers in breastfeeding women, specifically asking which is safer: lithium or lamotrigine.
Women with bipolar disorder are vulnerable to postpartum illness, and it is generally recommended that mothers continue treatment with a mood stabilizer throughout the postpartum period to reduce their risk of relapse; however, this recommendation is complicated by the all mood stabilizers are secreted into the breast milk, although their concentrations appear to vary considerably (Chaudron and Jefferson, 2000).
A clinician asks: “I am a psychiatrist treating a patient with Bipolar Disorder on Seroquel and Topamax. I would like to know what information is available regarding the safety of these medications to the infant if used during breastfeeding.”
While anticonvulsants, such as lamotrigine (Lamictal), topiramate (Topamax), and gabapentin (Neurontin), are being used with increasing regularity for the treatment of women with bipolar disorder, we have limited information with respect to the reproductive safety of the newer anticonvulsant agents. In 2006, we reported on preliminary data indicating an increased risk of oral clefts among infants exposed to lamotrigine during the first trimester of pregnancy.
