Celebrex is the brand name for celecoxib, which is a COX-2–selective nonsteroidal anti-inflammatory drug (NSAID). It helps relieve pain and inflammation with somewhat less irritation to the stomach lining than some older, nonselective NSAIDs, but it can still cause GI, kidney, or cardiovascular issues in some people.
What it’s used for (common indications)
- Osteoarthritis
- Rheumatoid arthritis
- Ankylosing spondylitis
- Juvenile idiopathic arthritis (in children over a certain age, prescribed by a pediatric rheumatologist)
- Occasionally for acute pain/inflammation (as prescribed)
How it works
- Blocks the COX-2 enzyme, reducing prostaglandin production and thereby reducing pain and swelling.
Typical adult dosing (varies by condition)
- Osteoarthritis: often 200 mg per day (could be given as 100 mg twice daily) or up to 400 mg per day total (as prescribed).
- Rheumatoid arthritis: usually 100–200 mg twice daily (up to 400 mg/day maximum).
- Ankylosing spondylitis: often 100–200 mg twice daily or 200 mg once daily (up to 400 mg/day maximum).
- Maximum daily dose generally cited: 400 mg/day.
Important: Dosing for children (juvenile idiopathic arthritis) is weight-based and determined by a clinician.
Common side effects
- Stomach upset, diarrhea, gas, or heartburn
- Headache or dizziness
- Infections or throat irritation (less common)
Serious risks to be aware of
- Higher risk of heart attack or stroke, especially with long-term use or in people with existing heart disease
- GI ulcers bleeding or perforation (less common than with some nonselective NSAIDs but still possible)
- Kidney problems; rare liver effects
- Allergic reactions (rash, swelling, trouble breathing)
- Possible cross-sensitivity in people with sulfonamide allergies (discuss with your doctor)
Pregnancy and lactation
- Not recommended in the later stages of pregnancy (typically after about 30 weeks) due to risks to the fetus and the pregnancy.
- If you’re pregnant or planning to become pregnant, talk to your clinician before taking Celebrex.
Drug interactions (some important ones)
- Other NSAIDs and aspirin: increase risk of GI bleeding or kidney effects
- Warfarin or other anticoagulants: may increase bleeding risk
- Lithium: can affect levels of lithium
- Some antidepressants (SSRIs/SNRIs) and certain diuretics or blood pressure meds: may alter effects or risks
- Celecoxib is metabolized by CYP2C9—strong inhibitors or inducers of this enzyme can affect levels
How to take it
- Take with food or milk if you have stomach upset
- Swallow capsules whole; don’t crush or chew
- Take exactly as prescribed; don’t exceed the recommended daily limit
When to seek medical help promptly
- Signs of GI bleeding (black/tarry stools, vomiting blood)
- Severe chest pain, weakness, trouble speaking or breathing (possible heart-related issue)
- Severe allergic reaction (rash, swelling, trouble breathing)
If you’d like, tell me:
- Your country (to tailor brand/formulary notes)
- The condition you’re treating and any other meds you take
- Any health issues (heart, kidney, liver disease, pregnancy status)
I can give more specific dosing ranges and safety notes based on your situation.