Is Naproxen (Aleve) safe during pregnancy?
What the FDA-approved label for Naproxen (Aleve) actually states in its Pregnancy Risk Summary — not a secondhand verdict. The decision is one to make with your prescriber.
What the label’s pregnancy summary says
The label carries a real risk statement. It says NSAID use, including naproxen, can cause premature closure of the fetal ductus arteriosus and fetal kidney dysfunction leading to oligohydramnios (low amniotic fluid) and, in some cases, neonatal kidney impairment. Because of these risks it advises limiting use between about 20 and 30 weeks of gestation, and avoiding naproxen at about 30 weeks of gestation and later. Data on other embryofetal risks in the first and second trimesters are described as inconclusive. Anyone who is or may be pregnant should consult their prescriber rather than start or stop on their own.
Frequently asked questions
Is Naproxen safe to take during pregnancy?
The label flags a real concern for Naproxen — see the summary above. This is not a drug to start or continue in pregnancy on your own; it needs a prescriber weighing the specific risks against the reason you would take it. The one universal rule: do not start or stop a medication in pregnancy without medical advice — an untreated condition can carry its own risk to a pregnancy.
What does the FDA label say about Naproxen in pregnancy?
The summary above is transcribed from the label's Pregnancy Risk Summary (§8.1). Since 2015 FDA labels replaced the old A/B/C/D/X letter categories with a narrative that describes what human and animal data actually show, which is what you are reading here — not a single letter grade.
Is Naproxen safe while breastfeeding?
That is a separate question the label answers in a different section (§8.2, Lactation), and it does not always match the pregnancy verdict. This page covers pregnancy only. For breastfeeding, ask your prescriber or pharmacist, or check the NIH LactMed database, which summarizes the drug-in-breast-milk evidence.
More guides for Naproxen
Source
Naproxen — DailyMed FDA label (§8.1 Pregnancy; Adverse Reactions) ↗
Other drugs: Acetaminophen · Amitriptyline · Amlodipine · Amoxicillin · Aspirin · Azithromycin · Bupropion · Cephalexin · Ciprofloxacin · Citalopram · Diphenhydramine · Doxycycline · Duloxetine · Escitalopram · all drugs.
The pregnancy information is transcribed from the drug’s FDA-approved label (§8.1) and mirrors what the label states — “insufficient data” is never rounded up to “safe.” This is general reference information, not medical advice. Whether to take any medication in pregnancy is a decision for you and your prescriber; do not start or stop a drug on your own, because an untreated condition can also carry risk.