Meloxicam is a prescription anti-inflammatory drug used primarily to treat arthritis pain and swelling. It’s FDA-approved for three specific conditions: osteoarthritis, rheumatoid arthritis, and juvenile rheumatoid arthritis in children ages 2 and older. Taken once daily as a tablet or liquid suspension, it works by reducing the inflammation that drives joint pain and stiffness.
Conditions Meloxicam Treats
Osteoarthritis is the most common reason meloxicam is prescribed. This is the wear-and-tear form of arthritis where cartilage breaks down over time, causing pain, swelling, and reduced range of motion in joints like the knees, hips, and hands. Meloxicam reduces both the pain and the underlying inflammation that makes affected joints stiff and difficult to move.
Rheumatoid arthritis, where the immune system attacks the lining of the joints, is the second approved use. While meloxicam doesn’t slow the progression of rheumatoid arthritis the way disease-modifying drugs do, it helps manage the day-to-day pain and swelling that make the condition difficult to live with.
For children 2 and older with juvenile rheumatoid arthritis, meloxicam is available as an oral suspension (a liquid), making it easier to dose by body weight. It’s approved for both pauciarticular forms (affecting four or fewer joints) and polyarticular forms (affecting five or more).
How Meloxicam Works
Meloxicam belongs to the NSAID class, the same family as ibuprofen and naproxen. All NSAIDs work by blocking enzymes called COX-1 and COX-2, which your body uses to produce prostaglandins. Prostaglandins are chemicals that trigger inflammation, pain, and fever at injury sites.
What sets meloxicam apart from older NSAIDs is its preference for blocking COX-2 over COX-1. COX-2 is the enzyme more directly responsible for inflammation, while COX-1 helps protect the stomach lining. This selectivity means meloxicam may be somewhat gentler on the stomach than ibuprofen or naproxen, though it doesn’t eliminate gastrointestinal risk entirely. Its COX-2 preference is similar to celecoxib, though meloxicam still inhibits both enzymes to varying degrees depending on the person and the dose.
How Long It Takes to Work
You may notice some pain relief within the first day of taking meloxicam, but that initial effect is modest. For chronic conditions like osteoarthritis, the full benefit typically builds over one to two weeks of daily use. This is because reducing established inflammation in a joint takes time. If you’ve been taking meloxicam for two weeks without meaningful improvement, that’s a reasonable point to check in with your prescriber about adjusting the dose or trying a different approach.
Typical Dosing
For both osteoarthritis and rheumatoid arthritis in adults, the standard starting dose is 7.5 mg once daily. If that doesn’t provide enough relief, the dose can be increased to 15 mg once daily, which is the maximum. You take it just once a day, which is a practical advantage over ibuprofen (typically dosed every 4 to 6 hours).
For children with juvenile rheumatoid arthritis, the dose is calculated by weight at 0.125 mg per kilogram, up to a maximum of 7.5 mg daily. People on dialysis are also capped at 7.5 mg per day.
Serious Risks to Know About
Meloxicam carries the same FDA boxed warning as all other prescription NSAIDs, covering two categories of risk.
The first is cardiovascular. NSAIDs increase the risk of heart attack and stroke, and this risk grows with longer use. People who already have heart disease or risk factors for it face a higher baseline risk. Meloxicam is specifically prohibited for pain management around coronary artery bypass graft surgery.
The second is gastrointestinal. Meloxicam can cause bleeding, ulcers, or perforation anywhere in the stomach or intestines. These events can happen without warning symptoms and can be fatal. Older adults face the highest risk. While meloxicam’s COX-2 preference offers a theoretical advantage here, the warning applies equally across all prescription NSAIDs.
Common Side Effects
The most frequently reported side effects are digestive: upset stomach, nausea, diarrhea, and abdominal discomfort. These tend to be mild for most people but are worth monitoring, especially in the first few weeks. Headache, dizziness, and mild fluid retention (swelling in the ankles or feet) also occur. If you notice dark or tarry stools, vomit that looks like coffee grounds, or unusual shortness of breath, those are signs of more serious complications that need immediate attention.
Who Should Not Take Meloxicam
Meloxicam is off-limits if you’ve ever had an allergic reaction to it or to any other NSAID. This includes people who develop asthma, hives, or swelling after taking aspirin or ibuprofen. Cross-reactivity between NSAIDs is common in these cases, and severe allergic reactions have been reported.
It’s also contraindicated in the period surrounding coronary artery bypass surgery, where the cardiovascular risks are especially pronounced.
Drug Interactions Worth Knowing
Meloxicam interacts meaningfully with several common medication categories.
- Blood thinners like warfarin: Meloxicam and anticoagulants have a synergistic effect on bleeding, meaning the combination raises bleeding risk more than either drug alone.
- Antidepressants (SSRIs and SNRIs): These medications affect how platelets use serotonin to form clots. Taking them alongside meloxicam can further increase bleeding risk.
- Blood pressure medications: Meloxicam can reduce the effectiveness of ACE inhibitors, ARBs, and beta-blockers. If you take any of these, your blood pressure may need closer monitoring after starting meloxicam.
- Diuretics: NSAIDs can blunt the effect of both loop and thiazide diuretics, reducing their ability to manage fluid retention and blood pressure.
The combination of meloxicam with blood pressure drugs is particularly concerning for older adults, people who are dehydrated, or those with existing kidney problems. In these groups, the pairing can accelerate kidney function decline, though this is usually reversible if caught early.