Comparison · Pregnancy Smart
Antidepressants during pregnancy
How do the options compare?
This comparison weighs each SSRI's studied pregnancy sample size and its most specific reported safety signal, not how well it works for any one person, since antidepressant response is individual.
| Option | Studied pregnancy dose | Guideline support | Notes |
|---|---|---|---|
| Sertraline (Zoloft) | Prescription only, set and adjusted by your prescriber. MotherToBaby's fact sheet does not publish one standard pregnancy dose. | MotherToBaby cites more than 25,000 studied pregnancies. Most studies found no increased birth defect risk, and birth defect rates were similar between sertraline users and other pregnant people with depression who did not take it, which suggests the underlying condition may explain some of the earlier signal. | Persistent pulmonary hypertension of the newborn occurs in about 1 to 2 per 1,000 births generally. Any SSRI-linked increase across the class is described as less than 1%. |
| Escitalopram (Lexapro) | Prescription only, individualized by your prescriber. No standard pregnancy dose is published in the fact sheet. | MotherToBaby reports more than 15,000 pregnancies exposed to citalopram or escitalopram combined. Most studies found no increased birth defect risk, though some suggested a higher chance of heart defects specifically, in studies the fact sheet describes as having flaws that make the cause hard to pin down. | Temporary newborn symptoms such as irritability, tremors, and feeding trouble are usually mild and resolve within a couple of weeks, per the same fact sheet. |
| Paroxetine (Paxil) | Prescription only, set by your prescriber. The fact sheet does not list a standard pregnancy dose, and any change should be gradual rather than abrupt. | MotherToBaby notes some studies link first-trimester paroxetine to a small increased chance of birth defects, especially heart defects, against a roughly 1% background rate in the general population, while other studies found no increased risk. | Some studies suggest a slightly higher miscarriage chance with paroxetine, but untreated depression itself is also linked to miscarriage risk, which the fact sheet says makes the medication's independent effect hard to isolate. |
| Fluoxetine (Prozac) | Prescription only, individualized by your prescriber. No standard pregnancy dose is published in the fact sheet. | MotherToBaby cites more than 10,000 first-trimester exposures with no pattern of birth defects identified, though some studies suggest a higher chance of preterm delivery or low birth weight. | Follow-up studies through age 7 found no behavioral or learning differences in exposed children, per the same fact sheet. |
- Depression affects about 1 in 10 pregnant people, and symptoms can come back in those who stop an antidepressant they were taking before pregnancy. 1
- Depression itself is not expected to increase the chance of birth defects above the background rate, but one study found a five times greater chance of relapse among people who stopped their medication for major depression during pregnancy. 2
- First-trimester antidepressant use was not tied to a substantial increase in cardiac malformations across 949,504 pregnancies, with a fully adjusted relative risk of 1.06 and no link found between sertraline and ventricular septal defects. 3
- Paroxetine showed elevated estimates for five birth defects and fluoxetine for two in a Bayesian analysis of nearly 28,000 mothers, while none of the five associations previously published for sertraline were confirmed. 4
- Persistent pulmonary hypertension was recorded in about 32 per 10,000 births exposed to an SSRI late in pregnancy versus 21 per 10,000 unexposed births, and the association fell to a non-significant odds ratio of 1.10 after adjusting for depression. 5
- More than 25,000 pregnancies exposed to sertraline have been studied, and most studies have not found an increased chance of birth defects; rates of birth defects were similar between sertraline users and other pregnant people with depression who did not take it. 6
- More than 15,000 pregnancies exposed to citalopram or escitalopram have been studied, and most research has not found an increased chance of birth defects, though some studies suggested a higher chance of heart defects specifically. 7
- Some studies suggest first-trimester paroxetine may carry a small increased chance of birth defects, especially heart defects, against a general-population background rate of about 1%, while other studies have found no increased risk. 8
Which option makes sense?
Switching antidepressants during pregnancy adds a second adjustment period on top of the pregnancy itself, which is why most clinicians favor staying on a medication that is already working.
Disclosure: Pregnancy Smart is a supplement maker. The options compared above sit outside our own product line; this page describes their pregnancy evidence on its own merits.
Frequently asked questions
What is the safest antidepressant to take during pregnancy?
There is no officially safest one, but the evidence is not evenly spread. Sertraline and escitalopram have the largest reassuring datasets. Paroxetine and fluoxetine carry specific unresolved defect signals in one large Bayesian analysis. Which of those matters most for you depends on what has actually kept you well, so decide with your prescriber.
Should I stop my antidepressant while pregnant?
Not on your own, and often not at all. ACOG notes that depression can return in people who stop medication they took before pregnancy, and MotherToBaby cites a study where relapse was five times more likely among those who stopped. Bring the question to your prescriber before you change a single dose.
Do antidepressants cause birth defects?
Not as a class. The largest cardiac study, covering 949,504 pregnancies, found no substantial increase once depression severity was accounted for. Signals for specific defects have shown up for paroxetine and fluoxetine in one Bayesian analysis and were not confirmed for sertraline. That is why the choice of drug matters more than the category.
Does depression itself affect the baby if I don't take medication?
It can. ACOG links depression during pregnancy to the fetus not growing well, going into labor too early, and low birth weight, and notes effects on newborn and older-child behavior. That is the other side of the scale, and it is the reason this is a trade-off rather than a simple choice to avoid medication.
Related in the library
References
ACOG · https://www.acog.org/womens-health/faqs/depression-during-pregnancy
MotherToBaby · https://mothertobaby.org/fact-sheets/depression-pregnancy/
Antidepressant Use in Pregnancy and the Risk of Cardiac Defects
PubMed · https://pubmed.ncbi.nlm.nih.gov/24941178/
PubMed · https://pubmed.ncbi.nlm.nih.gov/26156519/
Antidepressant Use Late in Pregnancy and Risk of Persistent Pulmonary Hypertension of the Newborn
PubMed · https://pubmed.ncbi.nlm.nih.gov/26034955/
MotherToBaby · https://mothertobaby.org/fact-sheets/sertraline-zoloft-pregnancy/
Citalopram | Escitalopram (Celexa | Lexapro)
MotherToBaby · https://mothertobaby.org/fact-sheets/citalopramescitalopram-celexalexapro-pregnancy/
MotherToBaby · https://mothertobaby.org/fact-sheets/paroxetine-paxil-pregnancy/
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.