# Ankylosing spondylitis (referral & NSAID symptom control)

- Category: chronic
- Review status: reviewed (every claim checked against a document named on this page)
- Sources: Naproxen 500 mg Tablets SmPC section 4.2 (eMC product 2639) · eMC SmPC, Arcoxia 90 mg film-coated tablets (Organon), sections 4.1 and 4.2 · Celecoxib US prescribing information, Dosage and Administration (DailyMed SetID 2c86ece8-1cf5-4688-91b1-8aef5d60b7e4) · Wenker KJ, Quint JM. Ankylosing Spondylitis. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Bookshelf ID: NBK470173. PMID: 29261996. · Humira 40 mg solution for injection in pre-filled pen SmPC sections 4.1, 4.2 and 4.4 (eMC product 7986) · Enbrel 50mg solution for injection in pre-filled syringe SmPC sections 4.1, 4.2 and 4.3 (eMC product 273) · Remsima 100 mg powder for concentrate for solution for infusion (infliximab) SmPC sections 4.1, 4.2, 4.3 and 4.4 (eMC product 3709) · Ankylosing Spondylitis - disease-level clinical article (ankylosing-spondylitis-referral-clinical.txt)
- Verified date: 2026-08

## Verified against

- Naproxen 500 mg Tablets SmPC section 4.2 (eMC product 2639)
- eMC SmPC, Arcoxia 90 mg film-coated tablets (Organon), sections 4.1 and 4.2
- Celecoxib US prescribing information, Dosage and Administration (DailyMed SetID 2c86ece8-1cf5-4688-91b1-8aef5d60b7e4)
- Humira 40 mg solution for injection in pre-filled pen SmPC sections 4.1, 4.2 and 4.4 (eMC product 7986)
- Enbrel 50mg solution for injection in pre-filled syringe SmPC sections 4.1, 4.2 and 4.3 (eMC product 273)
- Wenker KJ, Quint JM. Ankylosing Spondylitis. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Bookshelf ID: NBK470173. PMID: 29261996.
- Remsima 100 mg powder for concentrate for solution for infusion (infliximab) SmPC sections 4.1, 4.2, 4.3 and 4.4 (eMC product 3709)
- Ankylosing Spondylitis - disease-level clinical article (ankylosing-spondylitis-referral-clinical.txt)

## Treatment metadata

- Celecoxib — 200 mg — oral.solid
- Naproxen — 500 mg — oral.solid
- Etoricoxib — 60 mg — oral.solid
- Adalimumab — injection
- Etanercept — injection
- Infliximab — injection

## Complete treatment card

```text
ANKYLOSING SPONDYLITIS (REFERRAL & NSAID SYMPTOM CONTROL)
Sources: Naproxen 500 mg Tablets SmPC section 4.2 (eMC product 2639) · eMC SmPC, Arcoxia 90 mg film-
         coated tablets (Organon), sections 4.1 and 4.2 · Celecoxib US prescribing information,
         Dosage and Administration (DailyMed SetID 2c86ece8-1cf5-4688-91b1-8aef5d60b7e4) · Wenker
         KJ, Quint JM. Ankylosing Spondylitis. In: StatPearls [Internet]. Treasure Island (FL):
         StatPearls Publishing; 2026 Jan-. Bookshelf ID: NBK470173. PMID: 29261996. · Humira 40 mg
         solution for injection in pre-filled pen SmPC sections 4.1, 4.2 and 4.4 (eMC product 7986)
         · Enbrel 50mg solution for injection in pre-filled syringe SmPC sections 4.1, 4.2 and 4.3
         (eMC product 273) · Remsima 100 mg powder for concentrate for solution for infusion
         (infliximab) SmPC sections 4.1, 4.2, 4.3 and 4.4 (eMC product 3709) · Ankylosing
         Spondylitis - disease-level clinical article (ankylosing-spondylitis-referral-clinical.txt)
Review status: REVIEWED against 8 sources listed above  (2026-08)

IS IT THIS? - reference only, to read alongside your own examination
  SYMPTOMS - what the patient reports (3)
    - Inflammatory back pain needs at least 4 of 5 features: onset before age 40, gradual onset,
      relief with exercise, no improvement with rest, and nocturnal pain that eases on arising
      [back pain]
    - Back pain is a common complaint, and its characteristic pattern is described as inflammatory
      [back pain]
    - History should also probe for psoriasis, inflammatory bowel disease, and uveitis, which can be
      linked to AS
  SIGNS - what you find (1)
    - Spinal stiffness, limited mobility, and postural change, notably hyperkyphosis, are often
      found
  TESTS (9)
    - About 50-70% of patients with active AS have raised ESR and CRP; normal levels do not rule out
      AS
    - Sacroiliitis on x-ray or MRI is a major inclusion criterion under the ASAS 2009 axial
      spondyloarthritis criteria
    - Plain film grading for sacroiliitis runs 0 (normal) to IV (complete ankylosis); grade II shows
      sclerosis with some erosions and grade III shows severe erosions with partial ankylosis
    - The most noticeable radiographic abnormalities are subchondral erosions, sclerosis, and joint
      fusion, typically symmetric on both sides
    - Early disease can show squaring of the vertebral bodies, best seen on lateral x-ray
    - Early films may show Romanus lesions, or shiny corner signs: small erosions with reactive
      sclerosis at the vertebral body corners
    - Late-stage spinal ligament calcification can appear as the dagger sign - one radiodense line
      down the spine on frontal films
    - The classic late finding is the bamboo spine sign: vertebral fusion by syndesmophytes,
      typically at the thoracolumbar or lumbosacral junction
    - MRI can catch subtler disease than x-ray, showing sacroiliac inflammation as bone marrow edema
      on STIR or fat-suppressed T2 imaging, also seen in some healthy people
  IF NOT THIS - what else fits (4)
    - Mechanical low back pain: any age of onset, improves with rest, and only mild, short-lived
      morning stiffness
    - Lumbar spinal stenosis: usually over age 60, no peripheral arthritis or extraskeletal
      features, variable NSAID response
    - Rheumatoid arthritis: peripheral arthritis is common, and rheumatoid nodules are pathognomonic
      - not seen in AS
    - DISH is not inflammatory, lacks morning stiffness or exercise-related relief, and shows no
      sacroiliitis on imaging
  Source  StatPearls "Ankylosing Spondylitis" - disease-level clinical article
  Status  traced to the source above

Rx: Main treatment  |  TNF inhibitor when NSAIDs fail - rheumatology-initiated

MAIN TREATMENT - choose one
1. CELECOXIB                                              [1st line]
   Adult    200 mg once daily (or 100 mg twice daily); may increase to 200 mg twice daily if
            symptoms persist
   Peds     2 years and over: For juvenile idiopathic arthritis: 50 mg twice daily (10 to 25 kg) or
            100 mg twice daily (over 25 kg).
            (Child >=2 years for juvenile idiopathic arthritis: 50 mg BID (10-25 kg) or 100 mg BID
            (>25 kg))
   Choice   Sourced preference. The entry's own rationale names celecoxib first-line pharmacological
            therapy for inflammatory back pain, with naproxen kept for when cardiovascular risk
            argues against a coxib.
   Source   Celecoxib US prescribing information, Dosage and Administration (DailyMed SetID
            2c86ece8-1cf5-4688-91b1-8aef5d60b7e4)
   Why      First-line pharmacological therapy for inflammatory back pain and stiffness in axial
            spondyloarthritis
   Caution  Celecoxib is a COX-2 inhibitor: the GI bleeding risk is lower than with non-selective
            NSAIDs, but cardiovascular caution is mandatory.
            Avoid in severe hepatic or renal impairment.
            Avoid the use of celecoxib capsules in patients with severe heart failure unless the
            benefits are expected to outweigh the risk of worsening heart failure.
   Egypt    RHEUMAMAX 200MG 20 CAPS.         HI-PHARM            52.00 EGP (2.60/unit)
            CELOXIB 200MG 10 CAPS.           SEDICO              28.80 EGP (2.88/unit)
            ARYTHREX 200MG 20 CAPS.          AMOUN               94.00 EGP (4.70/unit)
            CELECOX 200MG 10 CAPS.           MEMPHIS             49.00 EGP (4.90/unit)
            CELEBORG 200 MG 20 CAPS.         BORG                99.00 EGP (4.95/unit)
            EUROCOX 200MG 10 TAB.            EUROPEAN EGYP...    67.00 EGP (6.70/unit)
            CELEBREX 200MG 10 CAPS.          PFIZER > VIAT...   132.00 EGP (13.20/unit)
            CELEBREX 200MG 15 CAPS.          PFIZER > VIAT...   198.00 EGP (13.20/unit)

2. NAPROXEN                                               [1st line]
   Adult    500 mg twice daily with food continuously while inflammatory symptoms persist
   Peds     Not recommended under 16 years for this indication - the product label restricts
            paediatric naproxen to juvenile idiopathic arthritis (10 mg/kg/day in two divided doses,
            child over 5 years). Use paracetamol or ibuprofen instead.
   Source   Naproxen 500 mg Tablets SmPC section 4.2 (eMC product 2639)
   Why      Non-selective NSAID alternative preferred when cardiovascular risk is a concern
   Caution  Co-prescribe PPI gastroprotection for continuous long-term use.
            Urgent rheumatology referral is required for biologic disease-modifying anti-rheumatic
            drugs (TNF inhibitors / IL-17 inhibitors).
   Egypt    ORGOPROXEN 500 MG 20 TAB.        ORGANOPHARMA ...    16.00 EGP (0.80/unit)
            NAPROSYN 500 MG 10 TAB.          MISR > F.HOFF...     8.05 EGP (0.81/unit)
            NAPROFEN 500MG 10 TAB.           EL NILE.            12.00 EGP (1.20/unit)
            NAPROFEN 500MG 20 TAB.           EL NILE.            24.00 EGP (1.20/unit)

3. ETORICOXIB                                             [2nd line]
   Adult    60 mg once daily; may be increased to 90 mg once daily if 60 mg gives insufficient
            relief. The dose for ankylosing spondylitis must not exceed 90 mg daily - Use the lowest
            effective dose for the shortest time consistent with symptom control, and review the
            need to continue at every visit
   Peds     Contraindicated in children and adolescents under 16 years of age.
   Source   eMC SmPC, Arcoxia 90 mg film-coated tablets (Organon), sections 4.1 and 4.2
   Why      67 live products - the second-largest orphan on the list after esomeprazole. Ankylosing
            spondylitis is a named SmPC indication with its own dose ceiling, and this condition had
            two free slots. A COX-2 inhibitor causes less gastroduodenal injury than the naproxen
            already listed, which matters when an NSAID is taken continuously for years.
   Caution  CONTRAINDICATED in established ischaemic heart disease, peripheral arterial disease or
            cerebrovascular disease.
            CONTRAINDICATED in uncontrolled hypertension - blood pressure persistently above 140/90
            mmHg. Measure it before starting and again within two weeks, and treat the hypertension
            before the arthritis.
            Contraindicated in active peptic ulceration or gastrointestinal bleeding, and in severe
            hepatic dysfunction.
            Do not combine with the celecoxib or naproxen already in this row, and do not add to
            low-dose aspirin without a PPI.
            The reduced gastrointestinal risk versus a traditional NSAID does not come with any
            cardiovascular advantage - thrombotic risk rises with dose and duration.
            Nephrotoxicity including interstitial nephritis and nephrotic syndrome - check renal
            function in an older patient or one on an ACE inhibitor or diuretic.
   Egypt    RECOXITRO 60 MG 30 F.C. TABS.    MARCYRL PHARM...   147.00 EGP (4.90/unit)
            RUMAXIMAP 60 MG 30 F.C.TABS.     APEX PHARMA        147.00 EGP (4.90/unit)
            ETICOXIA 60 MG 14 F.C.TABS.      HIKMA PHARMA        69.00 EGP (4.93/unit)
            WINZOXIB 60 MG 30 F.C.TABS.      AL ESRAA PHAR...   189.00 EGP (6.30/unit)
            ROCOXAR 60 MG 21 TABS.           EL DELTA FOR ...   159.00 EGP (7.57/unit)
            COXRITOR 60 MG 30 F.C.TABS.      GLOBAL NAPI P...   282.00 EGP (9.40/unit)
            TORIXAVA 60 MG 10 F.C. TABS.     EUROPEAN EGYP...   108.00 EGP (10.80/unit)
            ARCOXIA 60 MG 14 F.C.TABS.       MERCK SHARP &...   224.00 EGP (16.00/unit)


TNF INHIBITOR WHEN NSAIDS FAIL - RHEUMATOLOGY-INITIATED - choose one
4. ADALIMUMAB                                             [3rd line]
   Adult    Subcutaneous, one standard dose. SmPC verbatim: "The recommended dose of Humira for
            patients with ankylosing spondylitis, axial spondyloarthritis without radiographic
            evidence of AS and for patients with psoriatic arthritis is 40 mg adalimumab
            administered every other week as a single dose via subcutaneous injection." - Reviewed
            at 12 weeks. SmPC verbatim: "Available data suggest that the clinical response is
            usually achieved within 12 weeks of treatment. Continued therapy should be reconsidered
            in a patient not responding within this time period." The disease article sets the same
            clock: "the response to TNF-Is should be evaluated after 12 weeks."
   Peds     Not a paediatric prescription in this disease. Humira's paediatric spondyloarthritis
            licence is enthesitis-related arthritis from 6 years, which is a different indication
            with its own weight-based dose - a child with inflammatory back pain goes to paediatric
            rheumatology, not onto an adult regimen.
   Choice   The disease article names it first among the three TNF inhibitors it lists, and of the
            two Egypt registers it has the wider choice of products - nine adalimumab presentations
            against four etanercept. Etanercept beside it is a genuine alternative, and the cheaper
            one.
   Source   Humira 40 mg solution for injection in pre-filled pen SmPC sections 4.1, 4.2 and 4.4
            (eMC product 7986)
   Why      The disease article names the step and the drug, verbatim: "If NSAIDs do not provide
            adequate relief, they can be combined with or substituted for tumor necrosis factor
            inhibitors (TNF-Is) such as adalimumab, infliximab, or etanercept." The SmPC's
            indication section names the disease, verbatim: "Humira is indicated for the treatment
            of adults with severe active ankylosing spondylitis who have had an inadequate response
            to conventional therapy." Rheumatology starts it; the card carried NSAIDs alone, which
            is the first half of the article's own sentence. Nine Egyptian adalimumab products are
            registered.
   Caution  Screen for tuberculosis and treat active infection before the first dose. Anyone on a
            TNF antagonist catches serious infection more readily than they otherwise would, and the
            SmPC therefore wants a close watch kept for infection - tuberculosis included - ahead of
            treatment, while it runs, and once it has finished. Egypt is a country where latent
            tuberculosis is common, so this screen is not a formality.
            Contraindicated outright in some patients: tuberculosis that is active, any other severe
            infection - sepsis among them - and the opportunistic infections; also heart failure at
            NYHA class III or IV, that is moderate through to severe.
            Hold during an acute infection. Do NOT start Humira while an infection is active - a
            chronic or a localised one counts - and wait until that infection is under control.
            Systemic steroids are not the alternative here. A glucocorticoid given systemically is
            NOT advised for ankylosing spondylitis; injecting a steroid locally is a different
            matter, and in particular cases it can be weighed up.
   Egypt    ADALIMAB-EIPICO 40 MG/0.8ML PREFILLED SYRINGE RELIANCE LIFE SCIENCES > E...  4675.00 EGP
            ADALIMAB-EVA 40 MG/0.4ML 2 PREFILLED SYRINGE ALVOTECH > EVA PHARMA           7000.00 EGP
            HYRIMOZ 40MG/0.8ML 2 PREF. SYRINGES SANDOZ > NOVARTIS PHARMA SANDOZ DIVI...  8435.00 EGP
            AMGEVITA 40MG/0.8ML 2 PREF. SYRINGES AMGEN MANUFACTURING LIMITED > AMGEN... 11680.00 EGP
            HULIO 40MG/0.8ML 2 PREF. SYRINGES TERUMO > ONE PHARMA MEDICS                11680.00 EGP
            HUMIRA 40MG/0.4ML 2 PREF. SYRINGES ABBVIE LTD. > MULTIPHARMA                14113.00 EGP

5. ETANERCEPT                                             [3rd line]
   Adult    Subcutaneous. SmPC verbatim, for "Psoriatic arthritis, ankylosing spondylitis and non-
            radiographic axial spondyloarthritis": "The recommended dose is 25 mg Enbrel
            administered twice weekly, or 50 mg administered once weekly." - Reviewed at 12 weeks.
            SmPC verbatim: "For all of the above indications, available data suggest that a clinical
            response is usually achieved within 12 weeks of treatment. Continued therapy should be
            carefully reconsidered in a patient not responding within this time period."
   Peds     Not a paediatric prescription in this disease. Enbrel's paediatric licences are juvenile
            idiopathic arthritis, adolescent psoriatic arthritis, enthesitis-related arthritis and
            paediatric plaque psoriasis; ankylosing spondylitis is written for adults.
   Source   Enbrel 50mg solution for injection in pre-filled syringe SmPC sections 4.1, 4.2 and 4.3
            (eMC product 273)
   Why      The disease article names it, verbatim: "If NSAIDs do not provide adequate relief, they
            can be combined with or substituted for tumor necrosis factor inhibitors (TNF-Is) such
            as adalimumab, infliximab, or etanercept." The SmPC's indication section names the
            disease, verbatim: "Treatment of adults with severe active ankylosing spondylitis who
            have had an inadequate response to conventional therapy." Etanercept sits beside
            adalimumab as an equal option, which is how the article writes it. Egypt registers four
            products - ENBREL 25 mg and 50 mg, and the biosimilar ERELZI at roughly a third of the
            price.
   Caution  Screen for infection before and during treatment. The SmPC wants every patient assessed
            for infection ahead of Enbrel, throughout it, and afterwards - bearing in mind that
            etanercept takes a mean of roughly 70 hours to be eliminated by half. Latent
            tuberculosis is common in Egypt and must be excluded first.
            Contraindicated outright in some patients: sepsis, or any risk of it. And Enbrel is NOT
            begun while an infection is active, whether that infection is chronic or confined to one
            place.
            Record the brand and batch at every injection. So that a biological can be traced, the
            SmPC asks for the product's brand name and its batch number to be written plainly into
            the notes each time one is given. Biosimilars are not interchangeable without a record
            of which was given.
            Systemic steroids are not the alternative here. A glucocorticoid given systemically is
            NOT advised for ankylosing spondylitis; injecting a steroid locally is a different
            matter, and in particular cases it can be weighed up.
   Egypt    ERELZI 25 MG 4 PREF. SYRINGES    NOVARTIS PHAR...  3277.00 EGP
            ERELZI 50 MG 4 PREF. SYRINGES    NOVARTIS PHAR...  5409.00 EGP
            ENBREL 25 MG 4 PREF. SYRINGES    PFIZER            8904.00 EGP
            ENBREL 50 MG 4 PREF. SYRINGES    PFIZER           14985.00 EGP

6. INFLIXIMAB                                             [3rd line]
   Adult    Intravenous infusion, dosed by body weight. SmPC verbatim: "5 mg/kg given as an
            intravenous infusion followed by additional 5 mg/kg infusion doses at 2 and 6 weeks
            after the first infusion, then every 6 to 8 weeks." - Stopped early if the first two
            doses do nothing. SmPC verbatim: "If a patient does not respond by 6 weeks (i.e. after 2
            doses), no additional treatment with infliximab should be given." The disease article
            sets a longer clock for the class - "the response to TNF-Is should be evaluated after 12
            weeks."
   Peds     Not a paediatric prescription in this disease. SmPC verbatim: "The safety and efficacy
            of infliximab in children and adolescents younger than 18 years for the indications of
            juvenile idiopathic arthritis, psoriatic arthritis and ankylosing spondylitis have not
            been established." A child with inflammatory back pain goes to paediatric rheumatology.
   Source   Remsima 100 mg powder for concentrate for solution for infusion (infliximab) SmPC
            sections 4.1, 4.2, 4.3 and 4.4 (eMC product 3709)
   Why      The disease article names the step and the drug, verbatim: "If NSAIDs do not provide
            adequate relief, they can be combined with or substituted for tumor necrosis factor
            inhibitors (TNF-Is) such as adalimumab, infliximab, or etanercept." The SmPC's
            indication section names the disease, verbatim: "Remsima is indicated for treatment of
            severe, active ankylosing spondylitis, in adult patients who have responded inadequately
            to conventional therapy." It is the third of the article's three named TNF inhibitors
            and the only one the card lacked. Rheumatology starts it. Egypt registers one infliximab
            product, REMICADE 100 mg powder for intravenous infusion at roughly 5,900 EGP a vial,
            and a course is several vials per infusion at adult body weights.
   Caution  RED FLAG - tuberculosis is excluded before the first infusion, not after it. Every
            patient is assessed for tuberculosis ahead of infliximab, the active disease and the
            dormant ('latent') kind alike, and the screening is done in all of them: a tuberculin
            skin test, a chest X-ray, an interferon gamma release assay, or some combination of
            those. The SmPC also warns that most of the cases reported sat outside the lungs. Latent
            tuberculosis is common in Egypt, so this is a real gate rather than a formality.
            Infection risk runs for months after the last infusion. Watch closely for infection,
            tuberculosis included, before infliximab, during it and afterwards; clearing the drug
            can take as long as six months, and the watching carries on that whole time. If a
            serious infection or sepsis develops, infliximab must NOT be given again. A blunted
            fever is part of the hazard - damping TNF down can hide the signs of infection, fever
            among them.
            Contraindicated outright in some patients: tuberculosis, or another severe infection -
            sepsis, an abscess, an opportunistic organism; and heart failure at NYHA class III or
            IV, moderate or severe.
            An intravenous hospital drug, not a prescription pad drug. The infusion is given by
            qualified staff trained to spot trouble arising from it, because infliximab has caused
            acute reactions during infusion - anaphylactic shock among them - as well as
            hypersensitivity that comes on late.
            Systemic steroids are not the alternative here. A glucocorticoid given systemically is
            NOT advised for ankylosing spondylitis; injecting a steroid locally is a different
            matter, and in particular cases it can be weighed up.
   Egypt    REMICADE 100 MG PD. VIAL FOR I.V. INF. 10 ML JANSSEN CILAG > SOFICOPHARM     5936.00 EGP

Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy.
```

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