RT Journal Article SR Electronic T1 Why the Maternal Medication List Matters: Neonatal Toxicity From Combined Serotonergic Exposures JF Pediatrics JO Pediatrics FD American Academy of Pediatrics SP e20192250 DO 10.1542/peds.2019-2250 VO 147 IS 2 A1 Brajcich, Michelle R. A1 Palau, Mauricio A. A1 Messer, Ricka D. A1 Murphy, Michael E. A1 Marks, Jill YR 2021 UL http://pediatrics.aappublications.org/content/147/2/e20192250.abstract AB Serotonergic medications are used for the prevention and treatment of depression during pregnancy. Selective serotonin reuptake inhibitors and serotonin-norepinephrine reuptake inhibitors (SNRIs) can cause poor neonatal adaptation, which has been attributed to withdrawal versus toxicity. Bupropion, a norepinephrine-dopamine reuptake inhibitor, is often used as an adjunctive agent to selective serotonin reuptake inhibitors or SNRIs for refractory depression. Quetiapine, an atypical antipsychotic, may also be used in more complex cases. When combined with serotonergic drugs, bupropion and quetiapine are associated with increased risk of serotonin syndrome in adults. We describe a neonate exposed to venlafaxine (an SNRI), bupropion, and quetiapine in utero who presented nearly immediately after birth with encephalopathy and abnormal movements. The severity and rapidity of symptoms may be attributable to potentiation of venlafaxine’s serotonergic effects by bupropion and quetiapine. Neonatal providers should be aware of maternal medications and prepare for possible adverse effects, particularly from common psychotropic exposures.