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What Is Naproxen?

Naproxen is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, swelling, inflammation, and fever. It is available in prescription and over-the-counter formulations. Doctors prescribe naproxen for conditions such as arthritis, acute gout, tendinitis, bursitis, and menstrual cramps. Naproxen treats symptoms rather than curing the underlying condition.

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What Is Naproxen?

Naproxen is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, swelling, inflammation, and fever. It is available in prescription and over-the-counter formulations. Doctors prescribe naproxen for conditions such as arthritis, acute gout, tendinitis, bursitis, and menstrual cramps. Naproxen treats symptoms rather than curing the underlying condition.

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How Does Naproxen Work?

Naproxen blocks cyclooxygenase enzymes known as COX-1 and COX-2. These enzymes help produce prostaglandins, substances involved in pain, inflammation, and fever. By reducing prostaglandin production, naproxen relieves swelling, stiffness, and discomfort. This action can also affect the stomach lining, kidney function, and blood clotting, contributing to certain side effects.

What Conditions Can Naproxen Treat?

Naproxen is used for osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, tendinitis, bursitis, acute gout, menstrual cramps, and mild to moderate pain. Certain formulations also relieve temporary headaches, muscle aches, toothaches, and fever. Approved indications vary by product. A healthcare professional considers the condition, medical history, age, and other medications before recommending treatment.

How Should Naproxen Be Taken?

Naproxen is taken orally as directed on the prescription or product label. Prescription dosing varies by condition, while over-the-counter naproxen sodium follows its own labeled schedule. Taking it with food or milk can reduce stomach discomfort but does not eliminate bleeding or ulcer risks. Use the lowest appropriate dose for the shortest necessary duration. Avoid combining naproxen with other NSAIDs unless instructed by a clinician.

What Are the Side Effects and Risks of Naproxen?

Common side effects include heartburn, nausea, abdominal discomfort, dizziness, and headache. Serious complications include gastrointestinal bleeding, stomach ulcers, kidney injury, heart attack, and stroke. NSAIDs carry boxed warnings for serious cardiovascular and gastrointestinal events. Naproxen is generally avoided from about 20 weeks of pregnancy unless specifically advised by a healthcare professional and should be avoided at about 30 weeks or later.

Common Questions About Naproxen

Is naproxen stronger than ibuprofen?

Both medicines are NSAIDs, but their dosing schedules and duration of action differ. Neither is universally stronger, and the appropriate choice depends on the condition and individual health risks.

How long does naproxen take to work?

Pain relief can begin within about an hour, although onset varies by formulation and patient. Its anti-inflammatory benefits for chronic conditions can take longer to become fully apparent.

Can naproxen be taken every day?

Prescription naproxen is sometimes taken daily for chronic inflammatory conditions under medical supervision. Long-term use increases the need to monitor gastrointestinal, cardiovascular, and kidney risks.

Is naproxen the same as Naprosyn?

Naprosyn is a brand name for prescription naproxen. Other naproxen products can contain naproxen or naproxen sodium and have different strengths and dosing instructions.

References

DailyMed - NAPROXEN tablet. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=86a3e612-3bfe-432f-9afd-972bb8a6644e. Date Accessed October 16, 2026.

Naproxen. LiverTox. https://www.ncbi.nlm.nih.gov/books/NBK548159/. Date Accessed October 16, 2026.

Naproxen. MedlinePlus. https://medlineplus.gov/druginfo/meds/a681029.html. Date Accessed October 16, 2026.

Naproxen. PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/Naproxen. Date Accessed October 16, 2026.

Naproxen. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK525965/. Date Accessed October 16, 2026.