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Bedside Snapshot
- Core Dose: 7.5–15 mg PO once daily (start low, titrate if needed)
- Onset/Duration: Peak 4–6 hours; half-life ~15–20 hours (once-daily dosing)
- Key Dangers: GI bleeding, AKI, fluid retention/heart failure exacerbation, cardiovascular events (MI, stroke)
- Special Considerations: Preferential COX-2 inhibitor; lower GI toxicity than non-selective NSAIDs but still significant risk. Avoid in AKI, advanced CKD, decompensated heart failure, cirrhosis, active GI ulcer/bleed, and late pregnancy
Brand & Generic Names
- Generic Name: Meloxicam
- Brand Names: Mobic, Vivlodex, generics
Medication Class
Nonsteroidal anti-inflammatory drug (NSAID); preferential COX-2 inhibitor (not as selective as celecoxib)
Pharmacology
Mechanism of Action:
- Inhibits cyclooxygenase (COX) enzymes involved in prostaglandin synthesis
- Shows relative preference for COX-2 over COX-1 at usual doses, which may confer somewhat lower rates of GI toxicity compared with completely nonselective NSAIDs
- GI and cardiovascular risks remain clinically significant despite COX-2 selectivity
- Reduces prostaglandin production, decreasing peripheral and central sensitization to pain
- Reduces inflammation and fever
Pharmacokinetics:
- Absorption: Well absorbed orally; peak plasma concentrations typically reached within 4–6 hours
- Distribution: Highly protein bound (~99%); volume of distribution relatively low but extensive tissue penetration
- Metabolism: Primarily hepatic via oxidation (CYP2C9 and CYP3A4) and peroxidase pathways to inactive metabolites
- Elimination: Excreted in urine and feces as metabolites; terminal half-life ~15–20 hours, supporting once-daily dosing
- In renal or hepatic impairment, clearance is reduced and exposure may increase; use lower doses and avoid in severe disease
Indications
- Short-term treatment of acute musculoskeletal pain, sprains/strains, back pain, or arthritis flares once serious pathology is excluded and oral intake is reliable
- Continuation or adjustment of chronic osteoarthritis or rheumatoid arthritis regimens in stable patients
- Generally not a first-line choice in unstable, volume-depleted, or renally compromised ICU patients where NSAIDs can precipitate AKI
Dosing & Administration
Available Forms:
- Tablets/capsules: 7.5 mg, 15 mg
- Oral suspension: Various strengths (e.g., 7.5 mg/5 mL); verify concentration before dosing
Standard Adult Dosing:
| Indication / Scenario | Typical Dose | Frequency | Notes |
|---|---|---|---|
| Osteoarthritis / rheumatoid arthritis (initial) | 7.5 mg PO | Once daily | Increase only if needed and tolerated |
| Osteoarthritis / rheumatoid arthritis (max usual) | 15 mg PO | Once daily | Use lowest effective dose; avoid chronic high-dose use in high-risk patients |
| Acute musculoskeletal pain (short course) | 7.5–15 mg PO | Once daily | Limit duration; reassess if pain persists beyond several days |
| Renal impairment (mild to moderate) | 7.5 mg PO | Once daily (max) | Avoid in severe renal impairment or in patients on dialysis unless specialist-directed |
| Hepatic impairment (mild to moderate) | 7.5 mg PO | Once daily | Avoid in severe hepatic impairment; monitor LFTs if used |
| Geriatric patients (≥65 years) | 7.5 mg PO | Once daily (often max) | Higher sensitivity to GI, renal, and CV adverse effects; use lowest effective dose and shortest duration |
Contraindications
Absolute Contraindications:
- History of asthma, urticaria, or allergic-type reaction after aspirin or other NSAIDs (risk of severe bronchospasm/anaphylaxis)
- Use in the setting of coronary artery bypass graft (CABG) surgery (perioperative period)
- Active GI bleeding or peptic ulcer disease
- Severe renal impairment or progressive kidney disease unless benefits clearly outweigh risks and close monitoring is in place
- Third-trimester pregnancy due to risk of premature closure of the ductus arteriosus and fetal renal injury
Major Precautions:
- Cardiovascular risk: NSAIDs (including meloxicam) increase risk of serious cardiovascular thrombotic events (MI, stroke), especially with long-term use or preexisting CV disease
- GI risk: Increased risk of GI bleeding, ulceration, and perforation; risk higher in older adults, prior ulcer/bleed, concurrent anticoagulants/antiplatelets, corticosteroids, or heavy alcohol use
- Renal risk: Can precipitate AKI in volume depletion, CKD, heart failure, cirrhosis, or with concurrent nephrotoxic drugs (ACE inhibitors/ARBs, diuretics, contrast)
- Fluid retention and edema: May worsen hypertension and heart failure; monitor BP and volume status
- Hepatic effects: Rare severe hepatic injury; monitor for symptoms (fatigue, jaundice, dark urine) and abnormal LFTs
- Use caution in asthma, particularly aspirin-exacerbated respiratory disease; NSAIDs may trigger bronchospasm
Black Box Warning: NSAIDs cause increased risk of serious cardiovascular thrombotic events, including MI and stroke. NSAIDs also cause increased risk of serious gastrointestinal adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal.
Adverse Effects
Common:
- Dyspepsia, nausea, abdominal pain, heartburn
- Diarrhea or constipation
- Headache, dizziness
- Peripheral edema, mild BP elevation
Serious:
- GI bleeding, gastric or duodenal ulcer, GI perforation
- Acute kidney injury or worsening CKD, sometimes requiring dialysis
- Myocardial infarction, stroke, new or worsening heart failure
- Severe hypersensitivity reactions including anaphylaxis, angioedema, and severe cutaneous adverse reactions (Stevens-Johnson syndrome, toxic epidermal necrolysis)
- Severe hepatotoxicity with jaundice and hepatic failure (rare)
Special Populations
Renal Impairment:
- Mild to moderate: Start with 7.5 mg once daily (maximum); monitor closely
- Severe or dialysis-dependent: Avoid unless specialist-directed with careful monitoring
Hepatic Impairment:
- Mild to moderate: 7.5 mg once daily; monitor liver function tests
- Severe: Avoid use
Pregnancy:
- Avoid in third trimester (risk of premature closure of ductus arteriosus, fetal renal injury)
- Use in first and second trimesters only if benefits outweigh risks
Lactation:
- Limited data; use with caution; consider alternative analgesics
Pediatric Use:
- Oral meloxicam has pediatric indications for juvenile idiopathic arthritis in some guidelines
- Dosing is weight-based and product-specific; always consult pediatric references
- ED/ICU use in children is uncommon; pediatric pain often managed with ibuprofen or other agents
Geriatric Patients:
- Start with 7.5 mg once daily
- Higher sensitivity to GI, renal, and CV adverse effects
- Use lowest effective dose for shortest duration
Monitoring
Clinical Monitoring:
- Signs/symptoms of GI bleeding (melena, hematemesis, anemia, new abdominal pain)
- Blood pressure and signs of fluid retention, especially in patients with hypertension or heart failure
- Reassess pain control and need for ongoing NSAID therapy
Laboratory Monitoring:
- Baseline and periodic assessment of renal function (serum creatinine, BUN) in patients receiving repeated doses or with CKD, HF, or volume depletion
- Monitor liver enzymes periodically if using for longer durations or in patients with hepatic risk factors
Clinical Pearls
Long Half-Life Considerations: Meloxicam's once-daily dosing can improve adherence in subacute pain, but the long half-life means adverse effects (e.g., AKI, GI bleed) may persist longer than with short-acting NSAIDs.
High-Risk Patients: In high-risk patients (CKD, HF, cirrhosis, older adults with prior GI bleed), consider alternatives like acetaminophen, topical NSAIDs, or non-NSAID adjuncts rather than systemic meloxicam.
Renal Protection: If you need an NSAID in a borderline renal patient, ensure they are euvolemic, avoid concurrent nephrotoxins when possible, and limit dose/duration with close follow-up.
OTC NSAID Use: Always ask about and document OTC NSAID use; many patients take ibuprofen or naproxen at home on top of prescribed meloxicam, greatly increasing risk.
ICU Considerations: Avoid starting meloxicam in critically ill ICU patients with fluctuating renal function and borderline perfusion; if an NSAID is needed at all, favor short-acting agents with careful monitoring.
References
- 1. Lexicomp. (2024). Meloxicam: Drug information. Wolters Kluwer.
- 2. Boehringer Ingelheim. (2023). Mobic (meloxicam) [Package insert].
- 3. Schmidt, M., Sorensen, H. T., & Pedersen, L. (2016). Diclofenac use and cardiovascular risks: Series of nationwide cohort studies. BMJ, 353, i2554. https://doi.org/10.1136/bmj.i2554
- 4. U.S. Food and Drug Administration. (2015). FDA strengthens warning of heart attack and stroke risk for non-steroidal anti-inflammatory drugs. https://www.fda.gov/drugs/drug-safety-and-availability/fda-strengthens-warning-heart-attack-and-stroke-risk-non-steroidal-anti-inflammatory-drugs
- 5. Noble, S., & Balfour, J. A. (1996). Meloxicam. Drugs, 51(3), 424-430. https://doi.org/10.2165/00003495-199651030-00007