Etoricoxib for Pain and Inflammation (Arcoxia)
Comprehensive guide to etoricoxib (Arcoxia): uses, dosage, side effects, and safety for managing pain and inflammation effectively.
Etoricoxib, marketed as Arcoxia, is a selective COX-2 inhibitor used to relieve pain and inflammation associated with conditions like osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, acute gouty arthritis, and certain acute pains.
About etoricoxib tablets
Etoricoxib belongs to a group of medicines called non-steroidal anti-inflammatory drugs (NSAIDs). It works by blocking the enzyme cyclooxygenase-2 (COX-2), which is responsible for producing prostaglandins that cause pain, swelling, and inflammation in the body. Unlike non-selective NSAIDs, etoricoxib has approximately 106-fold selectivity for COX-2 over COX-1, reducing the risk of gastrointestinal side effects while effectively targeting inflammation.
Available in tablet form (30 mg, 60 mg, 90 mg, 120 mg), Arcoxia is rapidly absorbed after oral administration, providing quick onset of action and allowing once-daily dosing due to its long plasma half-life. It is indicated for adults and children aged 16 years and older for symptomatic relief.
Key facts about etoricoxib tablets
- Drug group: Selective COX-2 inhibitor (coxib class of NSAIDs).
- Brand name: Arcoxia (other names include Exinef, Nucoxia).
- Available doses: 30 mg, 60 mg, 90 mg, 120 mg film-coated tablets.
- Treatment duration: Short-term for acute conditions (max 8 days); chronic use up to lowest effective dose with periodic review.
- Onset: Rapid absorption; effective pain relief within hours.
- Not suitable for: Those with active peptic ulcers, severe heart failure, or history of cardiovascular events without risk-benefit assessment.
When is etoricoxib prescribed?
Etoricoxib is prescribed for symptomatic relief in various musculoskeletal and acute pain conditions. Clinical trials confirm its efficacy comparable or superior to non-selective NSAIDs.
- Osteoarthritis (OA): Reduces pain and stiffness; doses 30-60 mg once daily.
- Rheumatoid arthritis (RA): Manages inflammation and pain; 90 mg once daily.
- Ankylosing spondylitis (AS): 90 mg once daily; data supports potential efficacy at 60 mg for some patients.
- Acute gouty arthritis: 120 mg once daily for up to 8 days.
- Acute pain: Includes primary dysmenorrhea (120 mg up to 8 days), post-dental surgery pain (90 mg up to 3 days).
A Cochrane review shows single-dose etoricoxib (120 mg) provides four times more post-operative pain relief than placebo, equivalent to common analgesics.
How and when to take etoricoxib tablets
Take tablets whole with a glass of water, with or without food. Dosing should use the lowest effective dose for the shortest duration.
| Condition | Recommended Dose | Max Duration |
|---|---|---|
| Osteoarthritis | 30-60 mg once daily | Chronic use with review |
| Rheumatoid Arthritis / Ankylosing Spondylitis | 90 mg (60 mg possible for AS) once daily | Chronic use with review |
| Acute Gouty Arthritis | 120 mg once daily | 8 days |
| Primary Dysmenorrhea | 120 mg once daily | 8 days |
| Post-dental Surgery Pain | 90 mg once daily | 3 days |
If a dose is missed, take it as soon as remembered unless near the next dose; do not double up. Periodic evaluation is needed for long-term use.
Common questions about etoricoxib tablets
How long does it take to work?
Pain relief often starts within hours due to rapid absorption; full anti-inflammatory effects may take days for chronic conditions.
Can I take etoricoxib for a long time?
Possible for chronic conditions like OA/RA at lowest dose, but re-evaluate after 4 weeks. Use shortest duration possible.
Can I drive while taking it?
May cause dizziness; avoid driving if affected.
Is etoricoxib safe in pregnancy?
Not recommended, especially third trimester; use only if benefits outweigh risks.
Who can and cannot take etoricoxib tablets
Suitable for adults 16+ without contraindications. Do not take if:
- Allergic to etoricoxib or other NSAIDs.
- Active peptic ulcer or bleeding.
- Severe heart failure, uncontrolled hypertension, or recent cardiovascular events (assess risk).
- Pregnant (particularly third trimester) or breastfeeding (limited data).
- Severe liver/kidney impairment.
Caution in elderly, those with cardiovascular risk factors, or history of GI issues.
Pregnancy, breastfeeding and fertility while taking etoricoxib tablets
Avoid in pregnancy unless essential; category C/D risks (fetal harm possible). Limited breastfeeding data—use alternatives. May affect female fertility reversibly.
Side effects of etoricoxib tablets
Generally well-tolerated with better GI safety than non-selective NSAIDs. Common (>1/100):
- Stomach pain, indigestion, nausea.
- Headache, dizziness, high blood pressure.
- Swelling (edema), fatigue.
Serious (seek immediate help): chest pain, shortness of breath, severe allergic reactions, GI bleeding, liver issues. Cardiovascular risks (e.g., heart attack, stroke) possible with long-term high-dose use; monitor.
Post-marketing: infections, psychiatric effects, neurological events, cardiac arrhythmias.
How to cope with side effects of etoricoxib tablets
- Headache: Rest, hydrate; paracetamol if needed (check with doctor).
- Indigestion: Take with food; antacids if approved.
- Dizziness: Sit/lie down; avoid alcohol.
- Swelling: Elevate limbs; monitor blood pressure.
- Report persistent/severe effects promptly.
Dosage and missed doses
Follow prescribed dose strictly. For missed doses: take promptly if remembered, skip if near next. Never double. Overdose: seek emergency care (symptoms: nausea, lethargy).
Caution with other medicines
Interactions may increase risks:
- Anticoagulants (e.g., warfarin): Bleeding risk.
- Diuretics/ACE inhibitors/ARBs: Kidney effects.
- Rifampicin: Reduced efficacy.
- Methotrexate/Lithium: Toxicity risk.
- Contraceptives/HRT: Altered effects.
- Avoid other NSAIDs/aspirin.
Inform doctor of all medications.
Alternatives to etoricoxib tablets
- Other coxibs (celecoxib).
- Non-selective NSAIDs (ibuprofen, naproxen—with PPI for GI protection).
- Paracetamol for mild pain.
- Topical NSAIDs, physical therapy, or opioids for severe cases.
Frequently Asked Questions (FAQs)
What is etoricoxib used for?
Primarily for OA, RA, AS, gouty arthritis, and acute pains like dysmenorrhea or dental pain.
How quickly does Arcoxia work?
Rapid onset; significant pain relief in 1-2 hours for acute use.
Can etoricoxib cause heart problems?
Possible increased cardiovascular risk, especially long-term/high-dose; not for those with heart disease.
Is Arcoxia better than ibuprofen?
Similar efficacy but better GI tolerability; choice depends on individual risks.
What if I forget a dose?
Take as soon as possible unless near next dose; do not double.
References
- Arcoxia – referral | European Medicines Agency (EMA) — European Medicines Agency. 2023. https://www.ema.europa.eu/en/medicines/human/referrals/arcoxia
- What is the effect of Arcoxia? — Vinmec. 2023. https://www.vinmec.com/eng/blog/what-does-arcoxia-do-en
- AUSTRALIAN PRODUCT INFORMATION ARCOXIA® (etoricoxib) — MSD. 2017. https://www.e-lactancia.org/media/papers/Etoricoxib-DS-MSD2017.pdf
- Arcoxia 120 mg Film-coated Tablets – Patient Information Leaflet (PIL) — medicines.org.uk. 2023. https://www.medicines.org.uk/emc/product/10618/pil
- Etoricoxib — PubMed/NCBI (via Wikipedia reference). 2004. https://pubmed.ncbi.nlm.nih.gov/15319795/
- Etoricoxib — PubMed. 2004-09-01. https://pubmed.ncbi.nlm.nih.gov/15319795/
- Arcoxia 120 mg Film-coated Tablets – PIL — Electronic Medicines Compendium. Recent. https://www.medicines.org.uk/emc/product/10618/pil
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