Meloxicam vs. Diclofenac

See how Meloxicam and Diclofenac compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Both meloxicam and diclofenac are NSAIDs with boxed warnings for cardiovascular and gastrointestinal risks, so neither is a lower-risk default choice.

  • Meloxicam's once-daily dosing may be easier to stick with than diclofenac's two-to-three-times-daily schedule.

  • Diclofenac covers more FDA-approved uses out of the box, including acute pain and menstrual cramps, while meloxicam is only approved for arthritis conditions.

Meloxicam vs. Diclofenac Drug Summary

Meloxicam

Meloxicam is an NSAID used to relieve pain and inflammation from osteoarthritis, rheumatoid arthritis, and juvenile rheumatoid arthritis. It's taken as a tablet, capsule, or liquid, typically once a day. An IV form is also available for short-term pain management in hospitals.

Diclofenac

Diclofenac is an NSAID used to relieve pain and inflammation from osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, and acute pain like menstrual cramps. It's taken as a delayed-release tablet, usually two to three times a day. A topical gel version is also available over the counter for localized pain.

Meloxicam vs. Diclofenac Side Effects

Meloxicam

Most common
upper respiratory tract infection (up to 6.3%)
headache (5.5% to 8.3%)
dyspepsia (upset stomach) (up to 4.9%)
diarrhea (up to 4.4%)

Diclofenac

Most common
gastrointestinal symptoms (about 20%)
headache (7%)
dizziness (3%)
elevated liver enzymes (about 2%)

Meloxicam vs. Diclofenac Dosage

Meloxicam

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 7.5 mg once daily At the start
Maximum dose 0.125 mg/kg once daily If needed
Dose changes 2 increases As tolerated

Diclofenac

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 50 mg two-three x daily At the start
Maximum dose 150 mg/day maximum If needed
Dose changes 3 increases As tolerated

Meloxicam vs. Diclofenac Indications

Meloxicam

Meloxicam is FDA-approved for osteoarthritis, rheumatoid arthritis, and juvenile rheumatoid arthritis in children 2 and older. It's also used off-label for ankylosing spondylitis and general musculoskeletal pain, though these aren't FDA-approved uses.

  • Osteoarthritis in adults

  • Rheumatoid arthritis in adults

  • Juvenile rheumatoid arthritis in children 2+

  • Ankylosing spondylitis (off-label)

  • General musculoskeletal pain (off-label)

Diclofenac

Diclofenac is FDA-approved for osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, acute pain, and primary dysmenorrhea. It covers a broader range of approved conditions than meloxicam, including acute pain relief and menstrual cramps.

  • Osteoarthritis

  • Rheumatoid arthritis

  • Ankylosing spondylitis

  • Mild to moderate acute pain

  • Primary dysmenorrhea

Meloxicam vs. Diclofenac Pros and Cons

Meloxicam

Meloxicam carries the same boxed warnings for cardiovascular and GI risk as most NSAIDs, but its once-daily dosing and pediatric approval set it apart. It's not approved for acute pain or dysmenorrhea, so it's mainly used for ongoing arthritis management.

Pros

  • Once-daily dosing for most adults

  • Approved for children 2+ with juvenile RA

  • Available in tablet, ODT, capsule, IV, and liquid forms

  • Lower reported GI side effect rates on label

Cons

  • Not approved for acute pain or menstrual cramps

  • No over-the-counter topical formulation

  • Newer to market (approved in 2000)

Diclofenac

Diclofenac shares NSAID class risks but is approved for a wider set of acute and chronic pain conditions than meloxicam. Its multiple daily dosing and higher reported GI symptom rate are tradeoffs for that broader approval.

Pros

  • Approved for acute pain and menstrual cramps

  • Longer market history (approved since 1988)

  • Available as OTC topical gel for localized pain

  • Available in ophthalmic and injectable forms too

Cons

  • Requires dosing two to three times daily

  • Higher reported GI symptom rate (about 20%)

  • Not approved for pediatric use

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