Celebrex contains celecoxib, a COX-2 selective anti-inflammatory, commonly as 100 mg and 200 mg capsules. It treats osteoarthritis, rheumatoid arthritis, ankylosing spondylitis and acute pain. It is notably gentler on the stomach than older anti-inflammatories, with cardiovascular considerations instead.
What is Celebrex?
Celebrex contains celecoxib, a coxib — a selective COX-2 inhibitor. It is a Schedule 3 medicine, usually dispensed as 100 mg and 200 mg capsules.
The reasoning behind this class is worth understanding, because it explains both its advantage and its limitation.
Anti-inflammatories work by blocking cyclo-oxygenase, and there are two forms of that enzyme. COX-1 is the housekeeping one: it maintains the stomach lining, supports kidney blood flow, and helps platelets clot. COX-2 appears mainly at sites of inflammation. Older NSAIDs such as ibuprofen and diclofenac block both, which is why they relieve inflammation and irritate the stomach in the same action.
Celecoxib blocks COX-2 while largely sparing COX-1. The result is genuine: markedly fewer stomach ulcers and less gastrointestinal bleeding than with a traditional NSAID. For someone who needs an anti-inflammatory and has a history of ulcers, that difference matters.
The limitation emerged later. COX-1 in platelets contributes to clotting, and sparing it while suppressing COX-2 shifts the balance somewhat toward clot formation. Coxibs as a class carry a cardiovascular consideration — which is why the guidance is the lowest effective amount, for the shortest period, in people whose heart risk has been considered.
What is Celebrex commonly used for?
Celecoxib is prescribed for:
- Osteoarthritis, for pain and stiffness.
- Rheumatoid arthritis, alongside disease-modifying treatment.
- Ankylosing spondylitis, inflammatory arthritis of the spine.
- Acute pain, including musculoskeletal pain and pain after surgery or dental work.
- Period pain (primary dysmenorrhoea).
- Familial adenomatous polyposis, a rare inherited bowel condition, in specialist use.
It is most often chosen for one of two reasons: the person has a history of stomach problems on a conventional NSAID, or they need an anti-inflammatory long term for a chronic joint condition, where cumulative stomach risk is the main concern.
A point about arthritis worth stating clearly. In osteoarthritis, celecoxib relieves pain and stiffness; it does not repair cartilage or halt the condition. In rheumatoid arthritis it controls symptoms while disease-modifying medicines such as methotrexate do the work of preventing joint damage. Someone with rheumatoid arthritis feeling comfortable on celecoxib alone is not adequately treated — worth raising with a rheumatologist if that is unclear.
Exercise, weight management and physiotherapy have real evidence in osteoarthritis and reduce how much medicine is needed. They are not filler advice.
How Celebrex fits into this medicine category
| Group | Examples | Note |
|---|---|---|
| Simple analgesics | Paracetamol (Donapan) | No anti-inflammatory action; safest stomach profile |
| Non-selective NSAIDs | Ibuprofen (Brufen), diclofenac | Effective; most stomach risk |
| Preferentially COX-2 selective | Meloxicam (Coxflam) | Intermediate |
| COX-2 selective (coxibs) | Celecoxib (Celebrex), etoricoxib (Exinef) | Least stomach risk; cardiovascular attention |
| Corticosteroids | Prednisone | Far stronger; short courses or injection |
See the pain, inflammation and musculoskeletal medicines hub.
What to check before using Celebrex
Never combine it with another anti-inflammatory, including over-the-counter ibuprofen and combination painkillers containing one. Doing so removes the stomach advantage entirely.
Take it with food if it causes any discomfort, and use the lowest amount that controls your symptoms.
Tell your prescriber or pharmacist if:
- You have heart disease, heart failure, high blood pressure, or have had a heart attack or stroke. This is the key question for a coxib.
- You have had coronary bypass surgery, after which coxibs are avoided.
- You have a history of stomach ulcers or bleeding. Reduced risk is not zero.
- You have kidney disease, or become dehydrated easily.
- You have liver disease.
- You have asthma with NSAID sensitivity.
- You have a sulfonamide allergy. Celecoxib contains a sulfonamide group, and this specifically matters — tell your prescriber if you have ever reacted to a sulfa medicine.
- You are pregnant or breastfeeding.
- You take warfarin, an SSRI antidepressant, a diuretic, an ACE inhibitor, fluconazole or lithium.
- You are over 65.
Expect periodic monitoring on long-term treatment — blood pressure and kidney function in particular.
Follow the dispensing label. This page does not set doses.
Possible cautions and when to ask a pharmacist or doctor
Gentler on the stomach is not the same as safe for the stomach. Ulcers and bleeding still occur, particularly in people at higher baseline risk. Anyone with a previous ulcer may still be given a stomach-protecting medicine alongside — take it.
Cardiovascular risk is the trade-off. For someone with a stomach history and low heart risk, celecoxib is often the right choice. For someone with established heart disease, it usually is not. That balance is individual, which is why this is a prescription medicine rather than something to select for yourself.
Blood pressure can rise, and heart failure can worsen. Have your blood pressure checked periodically.
Kidney function can decline, particularly in older people, on blood-pressure medicines, or when dehydrated. During an illness with vomiting or diarrhoea, ask whether to pause it.
Serious skin reactions, though rare, are recognised with celecoxib. Stop and seek help immediately for a rash that blisters or peels, or involves the mouth or eyes.
Review long-term use periodically — is it still needed, still working, and could non-medicine measures reduce the requirement?
Seek urgent medical attention for chest pain, breathlessness, one-sided weakness or slurred speech, stomach pain, vomiting blood or coffee-ground material, black tarry stools, marked swelling of the legs or face, significantly reduced urine, yellowing of the skin or eyes, or a blistering or peeling rash.
Related medicine guides
- Browse Pain, Inflammation & Musculoskeletal Medicines guides
- Read: Prednisone used for
- Read: Donapan used for
Frequently asked questions
What is Celebrex 200 mg used for? Osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, acute pain and period pain. It contains celecoxib.
Is it easier on the stomach than ibuprofen? Yes, meaningfully so — it largely spares the enzyme that protects the stomach lining. The risk is reduced rather than eliminated.
Why is it prescription-only if it is gentler? Because the stomach advantage comes with a cardiovascular consideration, so the choice depends on your individual heart and stomach risk.
Can I take it if I am allergic to sulfa medicines? Tell your prescriber. Celecoxib contains a sulfonamide group and this is a specific caution.
Can I take it with ibuprofen? No. Combining two anti-inflammatories removes the stomach advantage and adds risk without improving relief.
Does it stop arthritis getting worse? No. It relieves pain and stiffness. In rheumatoid arthritis, preventing joint damage needs disease-modifying medicines such as methotrexate.