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- What is naproxen, and how does it work (mechanism of action)?
- What brand names are available for naproxen?
- Is naproxen available as a generic drug?
- Do I need a prescription for naproxen?
- What are the side effects of naproxen?
- What is the dosage for naproxen?
- Which drugs or supplements interact with naproxen?
- Is naproxen safe to take if I'm pregnant or breastfeeding?
- What else should I know about naproxen?
Is naproxen safe to take if I'm pregnant or breastfeeding?
NSAIDs may cause a fetal birth defect called ductus arteriosus (early closure of two major blood vessels of the heart and lung) in the third trimester of pregnancy. Therefore, NSAIDs should be avoided during this last part of pregnancy.
A small amount of naproxen is excreted in breast milk. Because the concentration in breast milk is low, breastfeeding while taking naproxen probably is not harmful to the infant.
What else should I know about naproxen?
What preparations of naproxen are available?
- Anaprox (tablets): 275 and 550 mg
- Naprosyn (tablets): 250, 375 and 500 mg
- Naprosyn suspension: 125 mg/5ml
- EC-Naprosyn: 375 mg
- Aleve: 220 mg
- Naprelan (controlled-release tablets): 375 and 500 mg.
How should I keep naproxen stored?
Naproxen should be stored at room temperature: 15 C to 30 C (59 F to 86 F).
Reference: FDA Prescribing Information
Quick GuideMigraine or Headache? Migraine Symptoms, Triggers, Treatment
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.












