Crohn’s disease

Acute exacerbation of Crohn’s disease
Prednisolone
Prednisolone 5mg tablets

30mg-40mg daily for 2-4 weeks, reducing by 5mg weekly thereafter according to patient response.

Prednisolone sodium phosphate 5mg suppositories

5mg twice daily, to be inserted into the rectum morning and night, after a bowel movement.

Prednisolone 20mg/100ml rectal solution

20mg daily for 2–4 weeks, continued if response good, to be used at bedtime.

Budesonide
Budenofalk 3mg gastro-resistant capsules

3mg three times daily for up to 8 weeks, reduce dose for last two weeks of treatment.

Budenofalk 9mg gastro-resistant granules sachets

9mg in the morning for 8 weeks, reduce dose for last two weeks of treatment. Granules should be placed on the tongue and swallowed whole with plenty of liquid.

Budenofalk 2mg/application foam enema

1 metered application once daily via rectum for up to 8 weeks.

Prescribing Notes:

  • Specialist advice should be sought if diagnosis is unclear.
  • Treatment should not be stopped abruptly and should be tapered down over the last 2 weeks. A suggested regimen for the capsule formulation is to reduce to 3mg twice daily for one week, then 3mg once daily for one week. For the granule formulation, administration can be reduced to alternate days for the last two weeks of treatment.
  • Due to the potential for erratic absorption from the gastrointestinal tract enteric coated tablets of prednisolone should be avoided.
  • Budesonide oral capsules may be used for inducing remission in ileo-caecal Crohn’s disease and microscopic colitis but patients should be reviewed by a specialist before maintenance therapy is considered.
  • For patients on long term oral steroids, the risk of osteoporosis should be considered
  • Acute exacerbation of extensive disease requires systemic corticosteroids.
  • The most cost effective choice of enema should be selected.

History Notes

15/12/2021

East Region Formulary content agreed.

Maintenance of remission of Crohn’s disease
Azathioprine
Azathioprine 25mg tablets

2–2.5mg/kg daily.

Azathioprine 50mg tablets

2–2.5mg/kg daily.

Mercaptopurine
Mercaptopurine 50mg tablets

1–1.5mg/kg daily.

Folic acid should be prescribed to reduce methotrexate toxicity.

Methotrexate
Metoject PEN 7.5mg/0.15ml solution for injection pre-filled pens

10-25mg once weekly dose titrated according to response and toxicity.

Metoject PEN 10mg/0.2ml solution for injection pre-filled pens

10-25mg once weekly dose titrated according to response and toxicity.

Metoject PEN 12.5mg/0.25ml solution for injection pre-filled pens

10-25mg once weekly dose titrated according to response and toxicity.

Metoject PEN 15mg/0.3ml solution for injection pre-filled pens

10-25mg once weekly dose titrated according to response and toxicity.

Metoject PEN 17.5mg/0.35ml solution for injection pre-filled pens

10-25mg once weekly dose titrated according to response and toxicity.

Metoject PEN 20mg/0.4ml solution for injection pre-filled pens

10-25mg once weekly dose titrated according to response and toxicity.

Metoject PEN 22.5mg/0.45ml solution for injection pre-filled pens

10-25mg once weekly dose titrated according to response and toxicity.

Metoject PEN 25mg/0.5ml solution for injection pre-filled pens

10-25mg once weekly dose titrated according to response and toxicity.

Folic acid
Folic acid 5mg tablets

5mg once a day, on the day following methotrexate therapy.

Prescribing Notes:

  • Azathioprine and mercaptopurine are used on specialist advice in selected patients with steroid dependent inflammatory bowel disease as a steroid sparing agent. It is appropriate for a shared care arrangement to facilitate the seamless transfer of individual patient care from secondary care to general practice.
  • Methotrexate should only be used under specialist supervision of a consultant gastroenterologist. It is appropriate for a shared care arrangement to facilitate the seamless transfer of individual patient care from secondary care to general practice.
  • Mesalazine should not be used as maintenance therapy in patients with Crohn’s disease.
  • New measures have been implemented to prompt healthcare professionals to record the day of the week for intake of methotrexate and to remind patients of the dosing schedule and the risks of overdose due to continued reports of inadvertent overdose. For further advice see MHRA Drug Safety Update September 2020.

History Notes

27/10/2022

Methotrexate prefilled syringes changed from generic to brand.

15/12/2021

East Region Formulary content agreed.

Severe active or active fistulising Crohn’s disease

Adalimumab should be prescribed by brand name.

Adalimumab
Imraldi 40mg/0.8ml solution for injection pre-filled syringes

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Imraldi 40mg/0.8ml solution for injection pre-filled pens

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Amgevita 20mg/0.2ml solution for injection pre-filled syringes

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response withing 12 weeks.

Amgevita 40mg/0.4ml solution for injection pre-filled syringes

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Amgevita 40mg/0.4ml solution for injection pre-filled pens

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Amgevita 80mg/0.8ml solution for injection pre-filled pens

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Amgevita 80mg/0.8ml solution for injection pre-filled syringes

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Amgevita 20mg/0.4ml solution for injection pre-filled syringes

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Amgevita 40mg/0.8ml solution for injection pre-filled syringes

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Amgevita 40mg/0.8ml solution for injection pre-filled pens

By subcutaneous injection, initially 80mg, then 40mg after 2 weeks; maintenance 40mg every 2 weeks, increased if necessary to 40mg once weekly, alternatively 80mg every 2 weeks, review treatment if no response within 12 weeks.

Infliximab should be prescribed by brand name.

Infliximab
Remsima 120mg/1ml solution for injection pre-filled pens

Initially 5mg/kg, then (by intravenous infusion) 5mg/kg after 2 weeks; (by subcutaneous injection) maintenance 120mg every 2 weeks, subcutaneous maintenance dosing to be started 4 weeks after the second of the initial intravenous infusions if a response has been seen. Discontinue if no response within 6 weeks of the initial infusion (after 2 doses).

Remsima 100mg powder for concentrate for solution for infusion vials

Initially 5mg/kg, then (by intravenous infusion) 5mg/kg after 2 weeks; (by subcutaneous injection) maintenance 120mg every 2 weeks, subcutaneous maintenance dosing to be started 4 weeks after the second of the initial intravenous infusions if a response has been seen. Discontinue if no response within 6 weeks of the initial infusion (after 2 doses).

Ustekinumab should be prescribed by brand name

Ustekinumab
Pyzchiva 45mg/0.5ml solution for injection pre-filled syringes

Consult product literature.

Pyzchiva 90mg/1ml solution for injection pre-filled syringes

Consult product literature.

Pyzchiva 130mg/26ml concentrate for solution for infusion vials

Consult product literature.

Wezenla 45mg/0.5ml solution for injection vials

Consult product literature.

Wezenla 45mg/0.5ml solution for injection pre-filled syringes

Consult product literature.

Wezenla 90mg/1ml solution for injection pre-filled syringes

Consult product literature.

Wezenla 130mg/26ml concentrate for solution for infusion vials

Consult product literature.

Upadacitinib
Rinvoq 15mg modified-release tablets

Consult product literature.

Rinvoq 30mg modified-release tablets

Consult product literature.

Rinvoq 45mg modified-release tablets

Consult product literature.

Risankizumab
Skyrizi 600mg/10ml concentrate for solution for infusion vials

Consult product literature.

Skyrizi 360mg/2.4ml solution for injection cartridges

Consult product literature.

Vedolizumab
Entyvio 300mg powder for concentrate for solution for infusion vials

Consult product literature.

Entyvio 108mg/0.68ml solution for injection pre-filled pens

Consult product literature.

Entyvio 108mg/0.68ml solution for injection pre-filled syringes

Consult product literature.

Prescribing Notes:

  • Adalimumab and infliximab are approved for Specialist use only in severe active Crohn’s disease or active fistulising Crohn’s disease.  
  • Each Health Board will have a preferred brand of adalimumab, infliximab and ustekinumab– check to ensure the preferred one is chosen.
  • All biological medicines, including biosimilars, should be prescribed by brand name.
  • They should only be used in patients who have not responded to conventional therapy or who are intolerant of or have contraindications to conventional therapy.
  • Ustekinumab is approved for the treatment of adult patients with moderately to severely active Crohn's disease who have had an inadequate response with, lost response to, or were intolerant to either conventional therapy or a tumour necrosis factor-alpha (TNFα) antagonist or have medical contraindications to such therapies. 
  • Upadacitinib is approved for the treatment of adult patients with moderately to severely active Crohn's disease (CD) who have had an inadequate response, lost response or were intolerant to either conventional therapy or a biological agent, or for whom such therapies are not advisable.
  • Refer to local board prescribing guidelines and MHRA guidance on Janus Kinase (JAK) Inhibitors.
  • Risankizumab is approved for the treatment of patients 16 years and older with moderately to severely active Crohn's disease who have had an inadequate response to, lost response to, or were intolerant to conventional therapy or a biologic therapy, or if such therapies are not advisable. 
  • Risankizumab may be utilised in preference to upadacitinib in older patients. 
  • Vedolizumab is approved for the treatment of adult patients with moderately to severely active Crohn's disease who have had an inadequate response with, lost response to, or were intolerant to a TNFα antagonist. 
  • Further information for patients, regarding condition and treatments can be found at Crohn’s & Colitis UK.
  • In NHS Fife, refer to IBD: use of Biological Agents and Small molecules in adult patients

History Notes

06/02/2025

Addition of new amgevita formulations, ERWG Jan 24.

22/10/2024

Ustekinumab formulations added. ERFC Oct 2024.

06/06/2024

Addition of Risankizumab, ERFC DEC 23

16/11/2023

Addition of Upadactinib SMC2575, Ustekinumab SMC1250/17 and Vedolizumab SMC1064/15 and SMC2277, ERFC August 2023.

31/08/2023

Removed 'Remsima 120mg/1ml solution for injection pre-filled syringes' as product discontinued.

Acute exacerbation of Crohn’s disease

Prednisolone oral solution and soluble tablets are restricted to use in patients who are unable to swallow tablets.

Prednisolone
Prednisolone 5mg tablets

For dose, refer to BNF for Children.

Prednisolone 5mg soluble tablets sugar free

For dose, refer to BNF for Children.

Prednisolone 10mg/ml oral solution sugar free

For dose, refer to BNF for Children.

Prednisolone sodium phosphate 5mg suppositories

For dose, refer to BNF for Children.

Prednisolone 20mg/100ml rectal solution

For dose, refer to BNF for Children.

Budesonide
Entocort CR 3mg capsules

For dose, refer to BNF for Children.

Prescribing Notes:

  • Specialist advice should be sought for acute exacerbations and if diagnosis is unclear. Children presenting with a possible flare of inflammatory bowel disease should be discussed with the GI team.
  • Nutritional intervention (exclusive enteral nutrition (EEN)) may be required and is the preferred alternative in Crohn’s disease with steroids reserved for those unable to take or unresponsive to EEN.
  • Acute exacerbation of extensive disease often requires systemic corticosteroids.
  • Patients receiving prolonged courses of steroids should be given a steroid card.
  • Systemic corticosteroid treatment should not be stopped abruptly and should be tapered down slowly as directed by the GI specialist.
  • Due to the potential for erratic absorption from the gastrointestinal tract enteric coated tablets of prednisolone should be avoided.
  • Budesonide oral capsules may be used for inducing remission in ileo-caecal Crohn’s disease and microscopic colitis, but patients should be reviewed by a specialist before maintenance therapy is considered.
  • For patients on long term oral steroids, the risk of osteoporosis should be considered.
  • Combinations of antibiotics may be used as adjunctive treatment or as the initial treatment of an exacerbation. Course lengths can be prolonged.

History Notes

28/11/2024

Updating 'Prednisolone 5mg soluble tablets' to sugar free preparation - ERFC Dec 2024.

30/08/2023

East Region Formulary content agreed - ERFC 09/08/2023.

Maintenance of remission of Crohn’s disease
Azathioprine
Azathioprine 25mg tablets

For dose, refer to BNF for Children.

Azathioprine 50mg tablets

For dose, refer to BNF for Children.

Azathioprine 50mg/5ml oral suspension

For dose, refer to BNF for Children.

Mercaptopurine
Mercaptopurine 50mg tablets

For dose, refer to BNF for Children.

Mercaptopurine 20mg/ml oral suspension

For dose, refer to BNF for Children.

Folic acid should be prescribed to reduce methotrexate toxicity.

Methotrexate
Methotrexate 2.5mg tablets

For dose, refer to BNF for Children.

Methotrexate 10mg/5ml oral suspension

For dose, refer to BNF for Children.

Metoject PEN 7.5mg/0.15ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Metoject PEN 10mg/0.2ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Metoject PEN 12.5mg/0.25ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Metoject PEN 15mg/0.3ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Metoject PEN 17.5mg/0.35ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Metoject PEN 20mg/0.4ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Metoject PEN 22.5mg/0.45ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Metoject PEN 25mg/0.5ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Folic acid oral solution should only be used when patients cannot tolerate or use solid formulations.

Folic acid
Folic acid 5mg tablets

For dose, refer to BNF for Children.

Folic acid 2.5mg/5ml oral solution sugar free

For dose, refer to BNF for Children.

Prescribing Notes:

  • Azathioprine and mercaptopurine are used on specialist advice in selected patients with steroid dependent inflammatory bowel disease as a steroid sparing agent. These medicines are appropriate for shared care, refer to local board policies.
  • New measures have been implemented to prompt healthcare professionals to record the day of the week for intake of methotrexate and to remind patients of the dosing schedule and the risks of overdose due to continued reports of inadvertent overdose. For further advice see MHRA Drug Safety Update September 2020.
  • Initial choice of medicine is based on individual clinical factors.
  • For further information on the treatment of Crohn’s disease see NICE guideline NG129 Crohn’s disease management.
  • For oral methotrexate, only 2.5mg tablet strength or 10mg/5mL suspension strength should be prescribed / dispensed.
  • Folic acid 5mg should be prescribed for patients taking methotrexate. It should be taken the day after the methotrexate dose.
  • Bone marrow suppression is generally dose related and reversible. If the patient develops malaise, fever, bruising, bleeding, rash or a sore throat, check the white cell count and discuss with the hospital team.
  • Specialist advice should be sought if patients receiving immunosuppressants come into contact with infectious diseases such as chicken pox, if immunity status is unknown.
  • Severely immunosuppressed patients should not receive live vaccines. Live vaccines should be postponed until at least 6 months after stopping immunosuppressive drugs.
  • Do not crush or half azathioprine, mercaptopurine or methotrexate tablets.
  • Patients who fail to respond to azathioprine may be prescribed methotrexate by subcutaneous injection, each week for 16 weeks (or longer), on the advice of a consultant gastroenterologist. If the patient responds to and tolerates parenteral therapy, then they may be switched to oral methotrexate, which is appropriate for a shared care arrangement to facilitate the seamless transfer of individual patient care from secondary care to general practice.

History Notes

30/08/2023

East Region Formulary content agreed - ERFC 09/08/2023.

Severe active or active fistulising Crohn’s disease
Adalimumab
Amgevita 20mg/0.2ml solution for injection pre-filled syringes

For dose, refer to BNF for Children.

Amgevita 40mg/0.4ml solution for injection pre-filled syringes

For dose, refer to BNF for Children.

Amgevita 40mg/0.4ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Amgevita 80mg/0.8ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Amgevita 80mg/0.8ml solution for injection pre-filled syringes

For dose, refer to BNF for Children.

Amgevita 20mg/0.4ml solution for injection pre-filled syringes

For dose, refer to BNF for Children.

Amgevita 40mg/0.8ml solution for injection pre-filled syringes

For dose, refer to BNF for Children.

Amgevita 40mg/0.8ml solution for injection pre-filled pens

For dose, refer to BNF for Children.

Infliximab
Remsima 120mg/1ml solution for injection pre-filled pens

As per specialist.

Remsima 100mg powder for concentrate for solution for infusion vials

As per specialist.

Ustekinumab
Pyzchiva 45mg/0.5ml solution for injection pre-filled syringes

As per specialist.

Pyzchiva 90mg/1ml solution for injection pre-filled syringes

As per specialist.

Pyzchiva 130mg/26ml concentrate for solution for infusion vials

As per specialist.

Wezenla 45mg/0.5ml solution for injection vials

As per specialist.

Wezenla 45mg/0.5ml solution for injection pre-filled syringes

As per specialist.

Wezenla 90mg/1ml solution for injection pre-filled syringes

As per specialist.

Wezenla 130mg/26ml concentrate for solution for infusion vials

As per specialist.

Risankizumab
Skyrizi 600mg/10ml concentrate for solution for infusion vials

Consult product literature.

Skyrizi 360mg/2.4ml solution for injection cartridges

Consult product literature

Prescribing Notes:

  • Adalimumab, infliximab and ustekinumab are approved for Specialist use only in severe active Crohn’s disease or active fistulising Crohn’s disease.
  • They should only be used in patients who have not responded to conventional therapy or who are intolerant of or have contraindications to conventional therapy except for those with perianal fistulising disease.
  • If more than one treatment option is suitable then the least expensive should be chosen (taking into account administration costs, dosage and price per dose).
  • Each Health Board will have a preferred brand of adalimumab, infliximab and ustekinumab – check to ensure the preferred one is chosen.
  • All biological medicines, including biosimilars, should be prescribed by brand name.
  • Ustekinumab is approved for the treatment of patients with moderately to severely active Crohn's disease who have had an inadequate response with, lost response to, or were intolerant to either conventional therapy or a tumour necrosis factor-alpha (TNFα) antagonist or have medical contraindications to such therapies.
  • Risankizumab is approved for the treatment of patients 16 years and older with moderately to severely active Crohn's disease who have had an inadequate response to, lost response to, or were intolerant to conventional therapy or a biologic therapy, or if such therapies are not advisable. 

History Notes

06/02/2025

Addition of new amgevita formulations, ERWG Jan 24.

22/10/2024

Addition of Ustekinumab formulations, ERFC Oct 2024.

09/07/2024

Risankizumab SMC 2534. ERWG July 24.

30/08/2023

East Region Formulary content agreed - ERFC 09/08/2023.