• SSRIs

    Prenatal Exposure to Antidepressants and Risk of Autism

    It is estimated that autism spectrum disorders (ASD) affect about 1% to 2% of children.  Research carried out in twins and families indicate that ASD is highly heritable; however, it is generally believed that while  genetic factors play an important role, there is an interplay between genetic and environmental factors in the etiology of this disorder.  Various environmental exposures have been implicated, including vaccinations, mercury, air pollution, insecticides, and infection.

    SSRI Exposure During Pregnancy Does Not Appear to Affect Infant Growth

    Some studies have shown an association between in utero exposure to antidepressants and various pregnancy outcomes, including preterm delivery, low birth weight, and lower Apgar scores; however, these outcomes have also been observed in infants born to depressed mothers who are not taking medication. Thus, it has been difficult to determine if there is a causal relationship between antidepressant exposure and these negative pregnancy outcomes or if untreated maternal depression is itself responsible for these negative outcomes. 

    Antidepressants and Pregnancy: A Meta-Analysis Puts the Risks into a Larger Context

    While some studies have shown an association between in utero exposure to antidepressants and various pregnancy outcomes, including preterm delivery, low birth weight, and lower Apgar scores, these outcomes have also been linked to untreated maternal depression. Thus, it has been difficult to determine if there is a causal relationship between antidepressant exposure and negative pregnancy outcomes or whether maternal depression is itself responsible for these negative outcomes.

    Dr. Lee Cohen in Ob-Gyn News: Using SSRIs in Pregnancy

    Over the last decade, attention in the medical literature has gathered logarithmically to focus on potentially efficacious treatments for perinatal depression. Studies of relevant databases, editorials, and various reviews have addressed the reproductive safety concerns of antidepressant treatments, particularly selective serotonin reuptake inhibitors (SSRIs) on one hand, and the impact of untreated maternal psychiatric illness on fetal and maternal well-being on the other.

    SSRIs and Pregnancy: Putting the Risks and Benefits into Perspective

    Prozac hit the market in 1988, the first selective serotonin reuptake inhibitor (SSRI) antidepressant approved by the FDA for the treatment of depression.  Because it was safer and more tolerable than the antidepressants that preceded it, Prozac was soon the most commonly prescribed antidepressant in the United States.

    Measuring the Effects of Antidepressants versus Untreated Depression on Pregnancy Outcomes

    Multiple studies have demonstrated an increased risk of poor neonatal adaptation associated with exposure to selective serotonin reuptake inhibitor (SSRI) antidepressants in late pregnancy.  Results in the literature consistently indicate that about 25%-30% of infants exposed to SSRIs late in pregnancy manifest symptoms of poor neonatal adaption, including jitteriness, restlessness, increased muscle tone, rapid breathing.  These symptoms are transient, resolving spontaneously with no specific medical intervention.

    SSRIs and PPHN: The FDA Revises Its Warning

    In 2006, Chambers and colleagues published an article in the New England Journal of Medicine linking SSRI use during late pregnancy to an increased risk of persistent pulmonary hypertension in the newborn (PPHN).   Based on these findings, the “Usage in Pregnancy” section on the labels for SRRI antidepressants was updated to include the following warning: “Infants exposed to SSRIs in late pregnancy may have an increased risk for persistent pulmonary hypertension of the newborn (PPHN).”

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