GUIDE
NO — ibuprofen is not safe during pregnancy, especially after 20 weeks.
The FDA issued a strengthened warning in 2020: NSAIDs like ibuprofen (Advil, Motrin) can cause rare but serious kidney problems in the unborn baby and low amniotic fluid when used at 20 weeks or later. Before 20 weeks, ibuprofen should also be avoided because safer alternatives exist. Acetaminophen (Tylenol) is the recommended pain reliever during pregnancy.
Be prepared from day one
In October 2020, the FDA strengthened its warning about NSAID use during pregnancy. The updated guidance specifically states that NSAIDs can cause low amniotic fluid levels when used at approximately 20 weeks of gestation or later, and that this complication can occur after just days of NSAID use.
Low amniotic fluid can lead to serious complications including impaired fetal lung and kidney development, limb contractures, and in severe cases, fetal death. The FDA recommends that NSAIDs should be avoided at 20 weeks and later unless specifically prescribed by a provider for a condition where the benefits outweigh the risks.
Before 20 weeks, the evidence of harm is less clear, but since a safe and effective alternative exists (acetaminophen), most providers recommend avoiding ibuprofen throughout pregnancy.
These risks increase with dose and duration but can occur even with short-term use after 20 weeks.
If you are unsure whether a medication is an NSAID, check the active ingredients on the label or ask your pharmacist.
Acetaminophen is the first-line option. Non-medication approaches can complement or sometimes replace pain medication.
Many OTC products contain ibuprofen or other NSAIDs without it being obvious from the brand name. Cold and flu products, migraine medicines, and menstrual pain relievers may contain NSAIDs. Always read the active ingredients label. When in doubt, ask your pharmacist.
If you took ibuprofen before knowing you were pregnant, or before knowing the risks, do not panic. A single dose or a few doses are unlikely to cause harm, especially before 20 weeks. Stop taking it now, switch to acetaminophen, and let your provider know at your next appointment.
If you took ibuprofen after 20 weeks, contact your provider. They may want to check your amniotic fluid levels with an ultrasound to make sure everything looks normal — prolonged NSAID use can contribute to low amniotic fluid. In most cases, the effects are reversible once the medication is stopped.
For detailed dosing guidance on the safe alternative, see our Tylenol during pregnancy guide. For a complete list of what is and is not safe, see our pregnancy-safe medications guide. If you are dealing with pregnancy headaches or back pain, those guides cover both medication and non-medication approaches.
This guide is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider with any questions about your pregnancy.
