Can You Take Ibuprofen While Pregnant?
It's generally best to avoid ibuprofen in pregnancy — especially from 20 weeks on. Acetaminophen (Tylenol) is the preferred alternative; check with your provider.
The full answer
Ibuprofen is a non-steroidal anti-inflammatory (NSAID), and these are generally avoided in pregnancy. The FDA advises against NSAIDs from about 20 weeks because they can reduce the baby's amniotic fluid and affect their developing kidneys, and in the third trimester they can cause a blood vessel in the baby's heart (the ductus arteriosus) to narrow too early. Some guidance also advises caution earlier in pregnancy. For pain or fever, acetaminophen (Tylenol/paracetamol) is the recommended alternative. If you've been prescribed low-dose aspirin or an NSAID for a specific medical reason, that's a different, provider-supervised situation — follow their advice. This is general information; your provider or pharmacist can advise on your circumstances.
Safer alternatives
- Use acetaminophen (Tylenol/paracetamol) for pain or fever instead
- Avoid ibuprofen, naproxen, and other NSAIDs — especially from 20 weeks
- If a doctor has prescribed an NSAID or aspirin for you, follow their guidance
When to avoid: Avoid ibuprofen and other NSAIDs in pregnancy (particularly from 20 weeks) unless your provider specifically prescribes one.
Ibuprofen by trimester
| Stage | What changes |
|---|---|
| First trimester | Acetaminophen is the preferred option for pain and fever from the outset, and guidance generally advises steering clear of NSAIDs. A dose or two taken before you knew you were pregnant is a very common situation and not usually treated as a cause for alarm — mention it at your next appointment rather than worrying alone. |
| Second trimester | This is where the clearest line falls. The FDA advises against NSAIDs from about 20 weeks, because they can reduce the baby's amniotic fluid and affect developing kidneys. That's a specific week marker, not a vague caution, and it applies to ibuprofen under any brand name. |
| Third trimester | Avoided. On top of the amniotic-fluid concern, NSAIDs in late pregnancy can cause the ductus arteriosus — a blood vessel in the baby's heart — to narrow before birth. If an NSAID is ever used this late it's under direct specialist supervision for a specific reason. |
Common questions about ibuprofen in pregnancy
I took ibuprofen before I knew I was pregnant — should I worry?
This happens often, and occasional early use is not generally regarded as a reason to expect harm — the strongest warnings attach to the second half of pregnancy. Switch to acetaminophen going forward and tell your provider what and when you took, so they have the full picture. Being straightforward about it is more useful than trying to work out the risk yourself.
Is Advil different from ibuprofen?
No — Advil is a brand name for ibuprofen, as are several other products, and Motrin is another. The same guidance applies to all of them. This trips people up regularly, so it's worth reading the active-ingredient line rather than recognising the box.
What about ibuprofen gel or cream on a sore joint?
Topical NSAIDs put far less into the bloodstream than tablets, but they aren't automatically exempt and advice varies. Because joint and back pain in pregnancy is common and there are non-drug options worth trying first, this is one to ask a pharmacist or your provider about rather than assume the rules differ.
Medicines in pregnancy: the basics
A few principles answer most “can I take this?” questions. Your provider or pharmacist comes first — they know your history and can check interactions, so this page is general information, not a prescription. Single-ingredient beats combination — treat one symptom at a time rather than reaching for a multi-symptom cold/flu blend, which often hides a decongestant or alcohol. Timing matters — some medicines are fine later but not in the first trimester, and NSAIDs like ibuprofen are avoided from about 20 weeks. And not treating a real problem — a fever, infection, or severe nausea — carries its own risk, so the goal isn’t to avoid all medicine, it’s to choose the right one (acetaminophen is the usual go-to for pain and fever).
For the full picture, see our pregnancy safety guide, and track your pregnancy with the How Far Along Am I? calculator and the week-by-week guide.
Frequently asked questions
- Can you take ibuprofen while pregnant?
- It's generally best to avoid ibuprofen in pregnancy — especially from 20 weeks on. Acetaminophen (Tylenol) is the preferred alternative; check with your provider. Ibuprofen is a non-steroidal anti-inflammatory (NSAID), and these are generally avoided in pregnancy. The FDA advises against NSAIDs from about 20 weeks because they can reduce the baby's amniotic fluid and affect their developing kidneys, and in the third trimester they can cause a blood vessel in the baby's heart (the ductus arteriosus) to narrow too early. Some guidance also advises caution earlier in pregnancy. For pain or fever, acetaminophen (Tylenol/paracetamol) is the recommended alternative. If you've been prescribed low-dose aspirin or an NSAID for a specific medical reason, that's a different, provider-supervised situation — follow their advice. This is general information; your provider or pharmacist can advise on your circumstances.
- Why is ibuprofen not recommended in pregnancy?
- Ibuprofen is a non-steroidal anti-inflammatory (NSAID), and these are generally avoided in pregnancy. The FDA advises against NSAIDs from about 20 weeks because they can reduce the baby's amniotic fluid and affect their developing kidneys, and in the third trimester they can cause a blood vessel in the baby's heart (the ductus arteriosus) to narrow too early. Some guidance also advises caution earlier in pregnancy. For pain or fever, acetaminophen (Tylenol/paracetamol) is the recommended alternative. If you've been prescribed low-dose aspirin or an NSAID for a specific medical reason, that's a different, provider-supervised situation — follow their advice. This is general information; your provider or pharmacist can advise on your circumstances.
- When should I avoid ibuprofen during pregnancy?
- Avoid ibuprofen and other NSAIDs in pregnancy (particularly from 20 weeks) unless your provider specifically prescribes one.