Since pregnancy and the time thereafter is a precarious period for wom
en with recurrent affective disorders and their offspring, it is impor
tant to determine the risk of various treatments for such disorders. T
his review assesses the risk to the fetus, the perinatal risks for mot
her and infant, the risk associated with treatment during the puerperi
um and breastfeeding, and the risks to the later development of the ch
ild. This review considers treatment with lithium, tricyclic antidepre
ssants (TCAs), selective serotonin (5-hydroxytryptamine; 5-HT) reuptak
e inhibitors (SSRIs), monoamine oxidase inhibitors, other antidepressa
nts, and the anticonvulsants carbamazepine and valproic acid (sodium v
alproate). According to available evidence, use of lithium, TCAs and S
SRIs is justified during and after pregnancy if treatment is required,
no prophylactic treatment has a lower risk : benefit ratio. The revie
w provides guidelines for the use of these drugs.