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Naproxen: Uses, Side Effects, Dosage, Interactions and more

Naproxen
Doctors often recommend naproxen as their go-to treatment for many conditions. These include acute gout, osteoarthritis, musculoskeletal pain, and dysmenorrhea. You can get it with or without a prescription, and it helps reduce fever and pain. The drug works well for headaches, muscle aches, arthritis, menstrual cramps, common cold symptoms, toothaches, and backaches.

How Does Naproxen Work? 

Naproxen works through a specific biochemical mechanism in the body. This powerful medication blocks specific enzymes called cyclooxygenase (COX-1 and COX-2). These enzymes produce compounds called prostaglandins that trigger inflammation, pain and fever when tissue gets injured.

Naproxen blocks these enzymes and:

  • Reduces prostaglandin production throughout the body

  • Decreases inflammation at injury sites

  • Lowers pain receptor sensitivity

  • Diminishes fever response

Uses of Naproxen

Doctors prescribe naproxen to treat many medical conditions because it works well to reduce inflammation and relieve pain. This medicine helps with many different health problems:

  • Arthritis Management

  • Acute Pain Conditions

    • Painful joint attacks in acute gout

    • Bursitis 

    • Tendinitis (inflamed tendons connecting muscles to bones)

    • Menstrual cramps/primary dysmenorrhea

    • Musculoskeletal pain

  • Common Discomforts

    • Headaches

    • Muscle aches

    • Toothaches

    • Back pain

    • Fever reduction

How & When to Take Naproxen? 

You will get the best results from naproxen when you take it the right way. 

  • Adults should take tablets whole with water after meals or with a snack to avoid stomach upset.

  • The right timing makes a difference with naproxen. Your doctor will likely suggest taking it at set times each day. Sticking to morning and evening doses often works well for twice-a-day plans. This helps maintain a consistent level of medicine in your blood throughout the day.

  • Take this medicine with food or a glass of milk. This protects your stomach's lining from irritation. 

  • Stay upright for at least 10 minutes after you swallow the pill so it can reach your stomach safely.

What Are the Side Effects of Naproxen? 

Most people handle this pain reliever without issues. However, naproxen can cause side effects. 

Common Complications:

  • Digestive issues like abdominal pain, constipation, diarrhoea, gas, heartburn or feeling sick

  • Headaches or dizziness

  • Feeling sleepy or struggling to sleep

  • Ringing in the ears or hearing changes

  • Vision changes or blurred sight

  • Tiredness or fatigue

  • Skin rashes or itchiness

Serious Side Effects (Call your doctor immediately):

  • Severe indigestion or ongoing stomach pain

  • Black or tarry stools

  • Vomit that looks like coffee grounds

  • Unusual bruising or bleeding

  • Swollen ankles, feet or hands

  • Skin or eyes turning yellow (jaundice)

  • Less frequent urination

  • Sudden weight gain

  • Ongoing sore throat, fever or infections

  • Severe tiredness or weakness

Get urgent medical help if you notice:

  • Chest pain 

  • Trouble breathing

  • Swelling in the face, lips, tongue or throat

  • Severe skin reactions with blistering or peeling

  • High fever with confusion or stiff neck

Can We Take Naproxen Daily? 

Naproxen needs careful attention when taken daily. This medication works well for pain relief but you shouldn't use it long-term without a doctor watching over you.

Doctors suggest taking the smallest dose that works and using it for the shortest time possible. Your risk of stomach ulcers goes up with regular long-term use, whether you notice warning signs or not.

What Precautions Should I Take When Using Naproxen? 

Talk to your doctor about the following before you begin naproxen:

Health Problems to Consider:

  • Let your doctor know if you have heart disease, kidney or liver 

  • issues, high blood pressure

  • , asthma or blood-clotting conditions. Mention any history of stomach ulcers, bleeding 

  • episodes, or fluid retention.

Pregnancy and Fertility Concerns:

  • Avoid naproxen after the 20th week of pregnancy

  •  and strictly after the 30th week

  • , as it can harm the baby.

Lifestyle Adjustments:

  • To reduce the chance of stomach bleeding:

  • Avoid drinking 

  • Always take naproxen with food or milk 

  • Stay sitting or standing for at least 30 minutes 

Special Population Precautions:

  • People over 65 have higher side effect risks

  • Patients on salt-restricted diets should check sodium levels in formulations

Essential Monitoring:

  • Schedule regular doctor visits

  • Tell your doctor about any changes in vision right away

  • Get emergency help if you experience chest pain, breathing problems, or skin rashes with fever

Medication Interactions:

  • Don't mix with other NSAIDs

  • Tell your doctor about supplements, especially garlic and ginger

What If I Missed a Dose? 

Skipping a naproxen dose happens often, so there's no need to stress about it.

Your best move is to take the missed dose if you remember within a few hours of your scheduled time. After that, stick to your regular schedule. This will give you consistent pain relief throughout the day. If it's already close to your next dose just skip the missed one.

What If I Overdose? 

Medical attention is essential for a naproxen overdose. Taking excessive amounts of this medication can cause life-threatening health complications if you don't get help quickly.

Naproxen overdose symptoms typically show up within hours:

  • Severe stomach pain or a burning sensation

  • Drowsiness and lethargy

  • Nausea with intense vomiting

  • Breathing difficulties

  • Bluish lips or extremities

  • Confusion or disorientation

  • Seizures in severe cases

  • Coma in extreme situations

If you suspect an overdose, don't wait to see if it gets better. Contact emergency services right away.

Caution With Other Drugs: Interactions 

Mixing naproxen with other medications needs careful attention. 

Naproxen interacts with many drugs. These include:

  • Antacids

  • Aspirin

  • ACE inhibitors

  • Angiotensin II receptor blocker medications

  • Beta blockers

  • Blood thinners

  • Cyclosporine

  • Digoxin

  • Diuretics

  • Lithium

  • Methotrexate

  • Sucralfate

Dosage for Naproxen 

Naproxen dosage depends on medical conditions and patient-specific factors. Doctors adjust doses to provide maximum benefits while keeping risks low.

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Dosage by Medical Condition

Condition

Initial Dose

Maintenance Dose

Maximum Daily Limit

Arthritis (Osteo/Rheumatoid/Ankylosing)

250-500mg

250-500mg twice daily

1500mg for up to 6 months

Acute Gout

750-825mg

250-275mg every 8 hours

Until the attack subsides

Bursitis/Tendinitis

550mg

275mg every 6-8 hours or 550mg every 12 hours

1375mg initially, then 1100mg

Menstrual Pain

550mg

Same as Bursitis/Tendinitis

1375mg initially, then 1100mg 

General Pain

550mg

Same as Bursitis/Tendinitis

1375mg initially, then 1100mg 

Migraine

550mg

Every 12 hours (can increase to 825mg)

1375mg

Naproxen vs Ibuprofen

Feature

Naproxen

Ibuprofen

Duration

About 12 hours

About 4–6 hours

Onset Time

Around 1 hour to start working

20-30 minutes for effect

Standard Adult Dose (OTC)

220 mg every 8-12 hours; first dose may be 440 mg

200-400 mg every 4-6 hours as needed

Dosing Frequency

Every 8-12 hours (OTC)

Every 4-6 hours as needed

Maximum Daily Dose (OTC)

660 mg/day

1200 mg/day

Age Restrictions

Generally for ages 12+

Can be used in children (dose based on weight/age)

Available Forms

Tablet, delayed-/extended-release, oral suspension

Tablet, liquid suspension, prescription strength forms

Night Pain Relief

More effective for nighttime relief due to longer duration

Less effective for overnight relief due to shorter duration

Cardiovascular Risk

Lower risk at moderate doses; risk increases with high/long-term use

Lower risk at standard doses; higher risk with high or long-term use

Bleeding Risk with Blood Thinners

Increased risk (somewhat less than ibuprofen at high doses)

Higher risk, especially with blood thinners or at higher doses

FAQs 

  1. What is naproxen commonly used to treat?

Doctors prescribe naproxen to treat several inflammatory conditions. The medication works well for osteoarthritis, rheumatoid arthritis, juvenile arthritis, and ankylosing spondylitis. Naproxen helps with acute gout attacks, bursitis, tendinitis, and menstrual cramps. People often use it for common aches like headaches, muscle pain, dental pain, and backaches. 

  1. Is it safe to take naproxen every day?

You need medical supervision to take naproxen daily. Long-term use increases your risk of stomach ulcers that might develop without any warning signs. Doctors suggest using the lowest dose that works for the shortest time possible. You should talk to your doctor about other pain management options if you keep taking them.

  1. What are the differences between Naproxen and Ibuprofen?

Naproxen gives you longer-lasting relief (8-12 hours per dose) than ibuprofen (4-6 hours). This makes naproxen better suited for overnight pain control. Ibuprofen starts working faster and gives you quick relief. 

  1. Can naproxen cause stomach problems or ulcers?

Yes - naproxen can create stomach ulcers even with brief use. Your risk goes up the longer you take it. Watch for signs like severe indigestion, stomach pain, heartburn, or nausea. Some ulcers develop without any warning signs. Elderly patients face higher risks of these complications.

  1. What should I avoid while taking naproxen?

You should avoid:

  • Other NSAIDs like ibuprofen or aspirin

  • Too much caffeine

  • Drinking alcohol 

  • Avoid taking it on an empty stomach

  • Let your doctor know about all medicines, vitamins, and supplements you take.

  1. How long does it take for naproxen to start working?

Naproxen usually starts working within an hour. The best results come after three days of taking it twice daily. Arthritis patients get better results from consistent use rather than occasional doses.

  1. Can I take naproxen with other painkillers?

You can safely take paracetamol with naproxen for short periods. In stark comparison to this, combining naproxen with other anti-inflammatory drugs like ibuprofen or aspirin increases side effects without better pain relief.

  1. Is naproxen safe during pregnancy or breastfeeding?

Doctors strongly warn against naproxen use after week 20 of pregnancy because it might harm your baby's circulation and affect amniotic fluid levels. Small amounts of naproxen pass into breast milk. Most babies handle it well, but some show signs of drowsiness and vomiting. Better alternatives exist for both pregnancy and breastfeeding.

  1. What are the common side effects of naproxen?

Users often experience digestive issues like indigestion, heartburn, stomach discomfort, nausea, or gas. Headaches, dizziness, and drowsiness happen frequently. Some people notice ear ringing or slight hearing changes. These side effects usually improve as your body adjusts to the medicine.

  1. Can naproxen affect kidney or liver function?

Naproxen affects both organs significantly. The medication can lead to kidney failure through reduced blood flow. About 4% of long-term users show higher liver enzymes. Patients with existing kidney or liver conditions need careful monitoring and might need different doses or alternative medications.

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