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Naproxen vs Ibuprofen: Differences, Uses, and Which Is Better

Last reviewed: December 2025

Overview

Naproxen and ibuprofen are both nonsteroidal anti-inflammatory drugs (NSAIDs) that treat pain, inflammation, and fever. While they work similarly, key differences in duration and dosing make each better suited for different situations. Naproxen lasts longer but takes more time to work; ibuprofen acts faster but requires more frequent dosing.

Quick Comparison

FeatureNaproxenIbuprofen
Brand namesAleve, NaprosynAdvil, Motrin
OTC strength220 mg200 mg
Onset of action30-60 minutes15-30 minutes
Duration8-12 hours4-6 hours
Daily dosing2-3 times4-6 times
Max OTC daily dose660 mg1,200 mg

How They Compare

Duration of Action

  • Naproxen: 8-12 hours per dose
  • Ibuprofen: 4-6 hours per dose

Naproxen’s longer duration means fewer doses per day, which many people find more convenient for chronic conditions.

Speed of Relief

  • Naproxen: 30-60 minutes to start working
  • Ibuprofen: 15-30 minutes to start working

Ibuprofen works faster, making it better for acute pain when you need quick relief.

Anti-Inflammatory Effect

Both are effective anti-inflammatories. Neither is clearly superior, though individual responses vary.

Best Uses for Each

Choose Naproxen For:

  • Arthritis and chronic joint pain
  • Menstrual cramps (longer coverage)
  • Back pain
  • Conditions requiring sustained relief
  • Overnight pain coverage
  • Fewer pills per day preference

Choose Ibuprofen For:

  • Headaches (faster onset)
  • Acute injuries
  • Fever in children (approved pediatric use)
  • Situations requiring quick relief
  • Short-term, intermittent use
  • When flexibility in dosing is needed

Safety Comparison

Overall Risk Profile

Both carry similar NSAID risks:

  • Cardiovascular events (heart attack, stroke)
  • GI bleeding and ulcers
  • Kidney problems
  • Allergic reactions

Key differences:

  • Naproxen: Some studies suggest slightly lower cardiovascular risk
  • Ibuprofen: May have slightly lower GI risk per dose
  • Both: Risk increases with dose and duration

GI Side Effects

  • Both can cause stomach upset, heartburn, ulcers
  • Risk similar when used at equivalent anti-inflammatory doses
  • Both should be taken with food

Cardiovascular Risk

  • FDA warns both increase heart attack/stroke risk
  • Some research suggests naproxen may have lowest CV risk among NSAIDs
  • Neither is safe for people with established heart disease

Kidney Effects

  • Both can impair kidney function
  • Risk increases with dehydration, age, and existing kidney problems
  • Naproxen’s longer duration means longer exposure per dose

Drug Interactions

Similar Interactions for Both:

  • Blood thinners (warfarin, aspirin)
  • Other NSAIDs (don’t combine)
  • ACE inhibitors and ARBs
  • Lithium
  • Methotrexate
  • SSRIs
  • Diuretics

Important Note:

Don’t take naproxen and ibuprofen together—this increases side effect risk without added benefit.

Dosing Comparison

Over-the-Counter Dosing

Naproxen (Aleve):

  • 220 mg every 8-12 hours
  • Maximum: 660 mg/day
  • 2-3 pills per day maximum

Ibuprofen (Advil/Motrin):

  • 200-400 mg every 4-6 hours
  • Maximum: 1,200 mg/day
  • Up to 6 pills per day

Prescription Dosing

Naproxen:

  • 250-500 mg twice daily
  • Up to 1,500 mg/day initially

Ibuprofen:

  • 400-800 mg every 6-8 hours
  • Up to 3,200 mg/day

Special Populations

Children

  • Ibuprofen: Approved for children 6 months and older
  • Naproxen: OTC use approved for age 12+; prescription for younger with medical guidance

Elderly

  • Both require caution
  • Start with lowest effective doses
  • Monitor for GI and kidney effects
  • Naproxen may be preferred for fewer daily doses

Pregnancy

  • Both should be avoided, especially in third trimester
  • Can cause fetal heart problems
  • Use only if clearly needed and directed by doctor

Cost and Availability

Both are:

  • Available over-the-counter
  • Inexpensive as generics
  • Available in brand and store-brand versions
  • Covered by most insurance at prescription strength

Making the Choice

Naproxen May Be Better If:

  • You have chronic pain requiring all-day coverage
  • You prefer fewer daily doses
  • You have nighttime pain
  • You’re concerned about cardiovascular risk (some evidence suggests lower risk)

Ibuprofen May Be Better If:

  • You need fast relief
  • You have intermittent, short-term pain
  • You’re treating fever in children
  • You want more flexible dosing control

Either Works Well For:

  • General aches and pains
  • Headaches
  • Menstrual cramps
  • Minor injuries
  • Fever (in adults)

Can You Switch Between Them?

Yes, but not at the same time:

  • Wait for one to wear off before taking the other
  • Naproxen: Wait at least 12 hours
  • Ibuprofen: Wait at least 6-8 hours
  • Don’t combine—no added benefit, more risk

Summary

Naproxen and ibuprofen are both effective NSAIDs with different strengths. Naproxen offers longer-lasting relief with fewer daily doses, making it ideal for chronic conditions. Ibuprofen provides faster relief with more dosing flexibility, better for acute pain and fever. Both carry similar risks, and neither should be used long-term without medical supervision.

Sources

  • FDA — NSAID Drug Safety Information
  • American College of Rheumatology — NSAID Guidelines
  • UpToDate — Comparison of NSAIDs
  • Cochrane Reviews — Naproxen vs Ibuprofen for Pain
Last reviewed: December 2025