Roxifen is piroxicam 20 mg, a long-acting anti-inflammatory taken once daily for arthritis. Piroxicam also exists as a gel applied to the skin. The tablet and the gel are very different propositions in terms of risk, and the difference is worth understanding before using either.
What is Roxifen?
Roxifen is a Schedule 3 capsule containing piroxicam 20 mg, listed in the South African Medicine Price Registry.
Piroxicam is a long-acting NSAID — a non-steroidal anti-inflammatory. It blocks the cyclo-oxygenase enzymes that produce prostaglandins, the chemicals behind pain, swelling and fever.
Its distinguishing feature is how long it lasts. Piroxicam has a half-life of around 50 hours, far longer than most NSAIDs, so one capsule a day is enough. That convenience is real, particularly for daily arthritis treatment.
But the same long duration is the reason for the medicine’s central caution. Because piroxicam persists in the body, its effects — including on the stomach lining — persist too. Piroxicam carries a higher risk of serious gastrointestinal bleeding and of severe skin reactions than most other NSAIDs, and medicines regulators including the EMA have restricted its use for exactly that reason.
The current position is that piroxicam is not a first-line NSAID. It is intended for long-term symptomatic treatment of arthritis, prescribed by a doctor familiar with the risks, generally after safer options have been tried — and not for short-term acute pain, injuries or period pain, where an ordinary NSAID does the same job with less risk.
Piroxicam gel is a different matter, and it is what many searches are about. Applied to the skin over a painful joint, very little enters the bloodstream, so the stomach, kidney and cardiovascular risks are much lower. For a single accessible joint — knee, hand, ankle — a topical NSAID is frequently the better choice.
What is Roxifen commonly used for?
The capsules:
- Osteoarthritis, for long-term symptomatic relief.
- Rheumatoid arthritis.
- Ankylosing spondylitis.
- Chronic musculoskeletal pain with an inflammatory component, under medical supervision.
Piroxicam gel:
- Localised joint pain, particularly osteoarthritis of the knee or hand.
- Soft tissue injuries — sprains, strains, tendon pain.
- Localised muscular pain.
What piroxicam capsules should not be used for: headache, period pain, dental pain, a sprained ankle, or any short-lived problem. Ibuprofen, diclofenac or naproxen carry lower risk for those, and paracetamol lower still.
Use the lowest dose for the shortest time, and expect a doctor to review it regularly. Because it is once daily and works well, piroxicam is easy to keep taking indefinitely — and indefinite use is precisely where its risks accumulate.
How Roxifen fits into this medicine category
| Group | Examples | Notes |
|---|---|---|
| Long-acting NSAIDs | Piroxicam (Roxifen) | Once daily; higher GI and skin risk; not first-line |
| Standard NSAIDs | Ibuprofen, diclofenac, naproxen | First-line; shorter-acting |
| COX-2 selective | Celecoxib, etoricoxib | Gentler on the stomach; cardiovascular caution |
| Topical NSAIDs | Piroxicam gel, diclofenac gel | Localised pain; far lower systemic risk |
| Simple analgesics | Paracetamol (Donapan) | Gentlest; no anti-inflammatory effect |
| Corticosteroids | Prednisone | Powerful anti-inflammatory, in courses |
The fourth row deserves more attention than it usually gets: for one painful joint, a gel achieves much of the benefit with a fraction of the risk. See the pain, inflammation and musculoskeletal medicines hub.
What to check before using Roxifen
Stomach protection is usually prescribed alongside it. Because of the bleeding risk, piroxicam is commonly given with a proton pump inhibitor such as omeprazole. If you are on piroxicam capsules without stomach protection, ask your doctor whether you should be.
Tell your doctor or pharmacist if you:
- Have or have had a stomach ulcer, gastritis, or bleeding in the digestive tract — piroxicam is contraindicated with a history of GI bleeding on NSAIDs.
- Have inflammatory bowel disease.
- Have had a serious skin reaction to any medicine, or a rash on another NSAID — piroxicam is contraindicated.
- Have asthma, especially if NSAIDs have triggered symptoms.
- Have heart disease, heart failure, high blood pressure or a history of stroke.
- Have kidney or liver disease.
- Take blood thinners, aspirin, another NSAID, steroids, SSRIs, lithium, methotrexate, diuretics or ACE inhibitors.
- Are pregnant, particularly from 20 weeks, or breastfeeding.
- Are over 65, where GI and kidney risks rise substantially.
Practical points:
- Take it with or after food, with a full glass of water.
- Take it once daily, at the same time.
- Do not combine it with another NSAID.
- Stay well hydrated.
- For the gel, apply to intact skin only, wash your hands afterwards, avoid the eyes and broken skin, and keep the treated area out of strong sunlight — topical NSAIDs cause photosensitivity.
Possible cautions and when to ask a pharmacist or doctor
Common effects are indigestion, heartburn, nausea, abdominal pain, headache and dizziness. The gel commonly causes local redness, itching or a rash where applied.
Stop taking it and get emergency help for any rash. This is the warning to remember with piroxicam. It carries a higher risk than other NSAIDs of severe skin reactions — Stevens-Johnson syndrome and toxic epidermal necrolysis — which begin as an ordinary-looking rash. Warning signs:
- Any new rash, particularly spreading
- Blistering or peeling skin, or sores in the mouth, eyes or genitals
- Rash with fever or facial swelling
Most rashes turn out to be minor. Because the dangerous ones start identically, the safe response is always to stop and be seen.
Get emergency help also for:
- Vomiting blood, or material like coffee grounds.
- Black, tarry stools, or severe stomach pain.
- Chest pain, breathlessness, or signs of a stroke.
- Sudden worsening of asthma or wheezing.
- Swelling of the face, lips or tongue, or difficulty breathing.
Contact your doctor if you develop swollen ankles, reduced urine output or unusual tiredness, if indigestion persists, if you have been taking it long-term without review, or if you are on it without stomach protection and have not discussed that. And if your pain is from a single joint, ask whether a gel would do — it often will.
Related medicine guides
- Browse Pain, Inflammation & Musculoskeletal Medicines guides
- Read: Prednisone used for
- Read: Donapan used for
Frequently asked questions
What is Roxifen used for? Long-term symptomatic treatment of osteoarthritis, rheumatoid arthritis and ankylosing spondylitis. It contains piroxicam 20 mg.
What is piroxicam gel used for? Localised joint and soft tissue pain — knee or hand osteoarthritis, sprains and strains. Applied to the skin, it carries much lower stomach and kidney risk than the capsules.
Why is it taken only once a day? Piroxicam lasts far longer in the body than most NSAIDs — a half-life of around 50 hours.
Is it stronger than ibuprofen? Not necessarily stronger, but longer-acting and higher-risk. Regulators restrict it to long-term arthritis treatment rather than everyday pain.
Can I use it for a headache or period pain? No. Use a shorter-acting NSAID or paracetamol — piroxicam’s risk profile is not justified for short-term pain.
Why might I need omeprazole with it? Because of the raised risk of stomach bleeding. Stomach protection is commonly prescribed alongside piroxicam capsules.
What should I do if I get a rash? Stop taking it and seek medical attention the same day. Piroxicam carries a higher risk of serious skin reactions, and they start as ordinary rashes.
Can I use the gel in the sun? Keep the treated area out of strong sunlight — topical NSAIDs cause photosensitivity.