Should Antidepressants be Avoided in Pregnancy?

Area of Science:

• Perinatal mental health
• Reproductive psychiatry
• Child development

Background:

• Maternal antidepressant use during pregnancy is common, yet discontinuation is high due to fetal safety concerns.
• Existing evidence linking prenatal antidepressant exposure to adverse offspring outcomes is often based on inadequately controlled studies.
• The sibling-control study design offers robust control for familial confounding factors, particularly maternal depression.

Approach:

• A systematic review of sibling-control analyses was conducted to evaluate evidence for adverse outcomes in offspring exposed to antidepressants during pregnancy.
• Searches of PubMed and Embase identified fourteen relevant sibling-control studies.
• Outcomes examined included preterm birth, small for gestational age, birth defects, autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD), and neurodevelopmental deficits.

Key Points:

• For most outcomes, sibling-control analyses found no statistically significant associations between prenatal antidepressant exposure and adverse offspring effects.
• A few studies reported statistically significant associations with outcomes like preterm birth, ADHD, and lower math scores, but differences were small and possibly not clinically significant.
• Residual confounding effects could not be entirely excluded in the analyzed studies.

Conclusions:

• Sibling-control analyses suggest that many previously reported associations between prenatal antidepressant exposure and adverse offspring outcomes are not statistically significant.
• The few significant findings were generally small and of questionable clinical importance.
• Clinical decisions regarding antidepressant use in pregnancy should prioritize evidence from well-controlled studies over potentially misleading data from inadequately controlled research.