This information is for you if you’re considering or have been prescribed treatment with ustekinumab (Stelera) for Crohn’s Disease or Ulcerative Colitis. It looks at:

- what you can expect from treatment
- how the medicine works
- possible side effects.

Our information can support you to make an informed decision about treatment that is right for you.

Other names for this medicine
Why am I being treated with ustekinumab?
How does it work?
How long will it take to work?
How long will I be taking ustekinumab?
How and when do I take ustekinumab?
Tips on injecting ustekinumab
What is the normal dosage?
How effective is ustekinumab?
Will I need any checks before taking ustekinumab
Will I need ongoing checks?
What are the most likely side effects of taking ustekinumab?
Will I need to take any special precautions while taking ustekinumab?
Is it safe to take other medicines along with ustekinumab?
Is ustekinumab used in combination with other drug treatments for IBD?
Can I have vaccinations while taking ustekinumab?
Can I drink alcohol while taking ustekinumab?
Does ustekinumab affect fertility or pregnancy?
What about breastfeeding?
Who should I talk to if I am worried?
Help and support from Crohn's & Colitis UK
How we write our information

Last reviewed: May 2018

Last amended: June 2020