Can I take methylphenidate while pregnant or breastfeeding?
A plain-words look at what the NHS, the US drug label and LactMed say about methylphenidate.
In short
Pregnancy: Methylphenidate is not often taken in pregnancy, because there is not much information about its safety.
Breastfeeding: Methylphenidate can be taken while breastfeeding, as long as your baby is healthy.
Your doctor, midwife or pharmacist can help you decide.
What this means for you
Pregnancy
- If you already take it and it helps you manage everyday activities, you may decide the benefits outweigh any possible risks.
- Discuss the benefits and risks of carrying on with methylphenidate with your doctor, midwife or pharmacist.
Breastfeeding
- Information on methylphenidate in breastfeeding is limited, but what there is shows that only tiny amounts reach breast milk.
- Your baby will not be able to take in much methylphenidate.
- Side effects in breastfed babies from medicines their mother takes are very rare.
- Even so, it's important to keep an eye on your baby while you take any medicine and breastfeed.
- Until you've had advice about your baby's symptoms, keep taking methylphenidate and carry on breastfeeding as normal.
When to get help
- Contact a healthcare professional or call 111 (in the UK) as soon as you can if your baby: is not feeding as well as they usually do or not gaining weight as you'd expect; is irritable; is being sick or has diarrhoea; is not sleeping as well as normal; or has skin problems, including a rash.
- If your baby has any other symptoms, or you're worried about them, you can still call 111 or get in touch with any healthcare professional.
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
Methylphenidate in pregnancy
The NHS says
Methylphenidate is not often taken in pregnancy, because there is not much information about its safety.
If you already take it and it helps you manage everyday activities, you may decide the benefits outweigh any possible risks.
Discuss the benefits and risks of carrying on with methylphenidate with your doctor, midwife or pharmacist.
In our words, from the NHS page Methylphenidate for adults (nhs.uk). Contains public sector information licensed under the Open Government Licence v3.0 (OGL v3.0). The NHS does not endorse this site.
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 drug label says
8.1 Pregnancy Pregnancy Category C Methylphenidate has been shown to have teratogenic effects in rabbits when given in doses of 200 mg/kg/day, which is approximately 100 times and 40 times the maximum recommended human dose on a mg/kg and mg/m 2 basis, respectively. A reproduction study in rats revealed no evidence of harm to the fetus at oral doses up to 30 mg/kg/day, approximately 15-fold and 3-fold the maximum recommended human dose of Methylphenidate HCl Extended-Release Tablets on a mg/kg and mg/m 2 basis, respectively. The approximate plasma exposure to methylphenidate plus its main metabolite PPAA in pregnant rats was 1-2 times that seen in trials in volunteers and patients with the maximum recommended dose of Methylphenidate HCl Extended-Release Tablets based on the AUC. The safety of methylphenidate for use during human pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women. Methylphenidate HCl Extended-Release Tablets should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
Prescribing label, section “8.1 Pregnancy”: Methylphenidate Hydrochloride (oral), Bryant Ranch Prepack. Label on DailyMed. Quoted verbatim; US labels are written for US prescribers and patients.
Methylphenidate while breastfeeding
The NHS says
Methylphenidate can be taken while breastfeeding, as long as your baby is healthy.
Information on methylphenidate in breastfeeding is limited, but what there is shows that only tiny amounts reach breast milk. Your baby will not be able to take in much methylphenidate.
Side effects in breastfed babies from medicines their mother takes are very rare. Even so, it's important to keep an eye on your baby while you take any medicine and breastfeed.
Contact a healthcare professional or call 111 (in the UK) as soon as you can if your baby: is not feeding as well as they usually do or not gaining weight as you'd expect; is irritable; is being sick or has diarrhoea; is not sleeping as well as normal; or has skin problems, including a rash.
If your baby has any other symptoms, or you're worried about them, you can still call 111 or get in touch with any healthcare professional.
Until you've had advice about your baby's symptoms, keep taking methylphenidate and carry on breastfeeding as normal.
In our words, from the NHS page Methylphenidate for adults (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
In dosages prescribed for medical indications, limited evidence indicates that methylphenidate levels in milk are very low and not detectable in infant serum. If methylphenidate is required by the mother, it is not a reason to discontinue breastfeeding.[1] It is possible that large dosages of methylphenidate might interfere with milk production, especially in women whose lactation is not well established.
“Summary of Use during Lactation”, LactMed record “Methylphenidate” (LM436), quoted verbatim. Everything LactMed reports about Methylphenidate 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 methylphenidate is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised if Methylphenidate HCl Extended-Release Tablets are administered to a nursing woman. In lactating female rats treated with a single oral dose of 5 mg/kg radiolabeled methylphenidate, radioactivity (representing methylphenidate and/or its metabolites) was observed in milk and levels were generally similar to those in plasma.
Prescribing label, section “Nursing Mothers”: Methylphenidate Hydrochloride (oral), Bryant Ranch Prepack. Label on DailyMed. Quoted verbatim; US labels are written for US prescribers and patients.
Other names
UK brand names (per the NHS): Ritalin, Concerta, Delmosart, Equasym, Medikinet.
Sources
- NHS, Methylphenidate for adults (nhs.uk), page last reviewed 25 March 2025. Paraphrased. Contains public sector information licensed under the Open Government Licence v3.0.
- US drug label: Methylphenidate Hydrochloride (oral), Bryant Ranch Prepack, human prescription drug, label effective 17 March 2026, set ID 5a29687b-5294-4b27-a556-514b092a877d. 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 “Methylphenidate” (LM436), 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.
Sources checked 26 September 2026. How we source and check every page.
Educational summary of named sources, not medical advice.