Can I take sertraline while pregnant or breastfeeding?
A plain-words look at what the NHS, the US drug label and LactMed say about sertraline.
In short
Pregnancy: Let your doctor know if you're pregnant, or if you become pregnant while on sertraline.
Breastfeeding: Let your doctor know if you're breastfeeding.
Your doctor, midwife or pharmacist can help you decide.
What this means for you
Pregnancy
- If needed, sertraline can be used in pregnancy.
- Your doctor will discuss with you the risks and benefits of taking it while pregnant.
- If you do need sertraline during pregnancy, your doctor will prescribe the lowest dose that works.
- You'll usually also be advised to have your baby in hospital, so that you and your baby can be monitored closely after the birth.
Breastfeeding
- Sertraline can often be used during breastfeeding, but it's best to check first, as small amounts of the medicine can get into breast milk.
- You'll usually be advised to carry on taking it if the benefits to you are greater than any possible risks to your baby.
When to get help
- Side effects in breastfed babies from medicines their mother uses are rare, but talk to a healthcare professional or call NHS 111 (in the UK) if anything about your baby worries you.
Talk to your doctor or pharmacist
This page is educational, not advice for your own situation. Talk to your doctor, midwife or pharmacist before you start, stop or change any medicine in pregnancy or while breastfeeding.
The details: what each source says
Sertraline in pregnancy
The NHS says
Let your doctor know if you're pregnant, or if you become pregnant while on sertraline.
If needed, sertraline can be used in pregnancy. Your doctor will discuss with you the risks and benefits of taking it while pregnant.
If you do need sertraline during pregnancy, your doctor will prescribe the lowest dose that works.
You'll usually also be advised to have your baby in hospital, so that you and your baby can be monitored closely after the birth.
In our words, from the NHS page Sertraline (nhs.uk). Contains public sector information licensed under the Open Government Licence v3.0 (OGL v3.0). The NHS does not endorse this site.
The US drug label says
Pregnancy Teratogenic Effects Pregnancy Category C Reproduction studies have been performed in rats and rabbits at doses up to 80 mg/kg/day and 40 mg/kg/day, respectively. These doses correspond to approximately 4 times the maximum recommended human dose (MRHD) on a mg/m 2 basis. There was no evidence of teratogenicity at any dose level. When pregnant rats and rabbits were given sertraline during the period of organogenesis, delayed ossification was observed in fetuses at doses of 10 mg/kg (0.5 times the MRHD on a mg/m 2 basis) in rats and 40 mg/kg (4 times the MRHD on a mg/m 2 basis) in rabbits. When female rats received sertraline during the last third of gestation and throughout lactation, there was an increase in the number of stillborn pups and in the number of pups dying during the first 4 days after birth. Pup body weights were also decreased during the first four days after birth. These effects occurred at a dose of 20 mg/kg (1 times the MRHD on a mg/m 2 basis). The no effect dose for rat pup mortality was 10 mg/kg (0.5 times the MRHD on a mg/m 2 basis). The decrease in pup survival was shown to be due to in utero exposure to sertraline.
Prescribing label, section “Pregnancy” (opening excerpt): Sertraline Hydrochloride (oral), Quality Care Products LLC. Read the full section on DailyMed. Quoted verbatim; US labels are written for US prescribers and patients.
More on sertraline in pregnancy: Bumps (Best Use of Medicines in Pregnancy) leaflet (external site).
Sertraline while breastfeeding
The NHS says
Let your doctor know if you're breastfeeding.
Sertraline can often be used during breastfeeding, but it's best to check first, as small amounts of the medicine can get into breast milk.
You'll usually be advised to carry on taking it if the benefits to you are greater than any possible risks to your baby.
Side effects in breastfed babies from medicines their mother uses are rare, but talk to a healthcare professional or call NHS 111 (in the UK) if anything about your baby worries you.
In our words, from the NHS page Sertraline (nhs.uk). Contains public sector information licensed under the Open Government Licence v3.0 (OGL v3.0). The NHS does not endorse this site.
LactMed says
Because of the low levels of sertraline in breastmilk, amounts ingested by the infant are small and is usually not detected in the serum of the infant, although the weakly active metabolite norsertraline (desmethylsertraline) is often detectable in low levels in infant serum. Rarely, preterm infants with impaired metabolic activity might accumulate the drug and demonstrate symptoms similar to neonatal abstinence. No adverse effects on development have been found in infants followed for up to 5 years of age. Most authoritative reviewers consider sertraline a preferred antidepressants during breastfeeding.[1-9]
Mothers taking an SSRI during pregnancy and postpartum may have more difficulty breastfeeding, although this might be a reflection of their disease state.[10] These mothers may need additional breastfeeding support. Breastfed infants exposed to an SSRI during the third trimester of pregnancy are at risk for neonatal withdrawal syndrome consisting of hypoglycemia, tremors, tachycardia, or hypotonia, and might be at a greater risk of readmission due to jaundice.[11,12]
“Summary of Use during Lactation”, LactMed record “Sertraline” (LM328), quoted verbatim. Everything LactMed reports about Sertraline while breastfeeding.
What these words mean
- metabolite
- a substance made when the body breaks down a medicine
Definitions adapted from the NCI Dictionary of Cancer Terms (National Cancer Institute).
The US prescribing label says
Nursing Mothers It is not known whether, and if so in what amount, sertraline or its metabolites are excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when sertraline hydrochloride is administered to a nursing woman.
Prescribing label, section “Nursing Mothers”: Sertraline Hydrochloride (oral), Quality Care Products LLC. Label on DailyMed. Quoted verbatim; US labels are written for US prescribers and patients.
Other names
UK brand names (per the NHS): Lustral.
Sources
- NHS, Sertraline (nhs.uk), page last reviewed 8 September 2025. Paraphrased. Contains public sector information licensed under the Open Government Licence v3.0.
- US drug label: Sertraline Hydrochloride (oral), Quality Care Products LLC, human prescription drug, label effective 17 December 2024, set ID 25aef6c1-9964-44a1-a905-c37e5c28a3c0. DailyMed (National Library of Medicine). Public domain; quoted verbatim.
- Drugs and Lactation Database (LactMed), National Institute of Child Health and Human Development (NICHD), via NCBI Bookshelf, record “Sertraline” (LM328), bulk release of 22 September 2026. LactMed on NCBI Bookshelf. Public domain; quoted verbatim. LactMed is a registered trademark of the U.S. Department of Health and Human Services.
- Bumps (Best Use of Medicines in Pregnancy), UK Teratology Information Service: Bumps (Best Use of Medicines in Pregnancy) leaflet. Linked, not reproduced.
Sources checked 26 September 2026. How we source and check every page.
Educational summary of named sources, not medical advice.
