Patient Leaflet Updated 29-Jul-2026 | Celltrion Healthcare UK Limited
Steqeyma 45 mg solution for injection in pre-filled pen
STEQEYMA 45 mg solution for injection in pre-filled pen
ustekinumab
▼This medicine is subject to additional monitoring. This will allow quick identification of new safety information. You can help by reporting any side effects you may get. See the end of section 4 for how to report side effects.
This leaflet has been written for the person taking the medicine.
1. What Steqeyma is and what it is used for
2. What you need to know before you use Steqeyma
3. How to use Steqeyma
4. Possible side effects
5. How to store Steqeyma
6. Contents of the pack and other information
Steqeyma contains the active substance ‘ustekinumab’, a monoclonal antibody. Monoclonal antibodies are proteins that recognise and bind specifically to certain proteins in the body.
Steqeyma belongs to a group of medicines called ‘immunosuppressants’. These medicines work by weakening part of the immune system.
Steqeyma administered using the pre-filled pen is used to treat the following inflammatory diseases:
Plaque psoriasis is a skin condition that causes inflammation affecting the skin and nails. Steqeyma will reduce the inflammation and other signs of the disease.
Steqeyma administered using the pre-filled pen is used in adults with moderate to severe plaque psoriasis, who cannot use ciclosporin, methotrexate or phototherapy, or where these treatments did not work.
Psoriatic arthritis is an inflammatory disease of the joints, usually accompanied by psoriasis. If you have active psoriatic arthritis you will first be given other medicines. If you do not respond well enough to these medicines, you may be given Steqeyma to:
Crohn’s disease is an inflammatory disease of the bowel. If you have Crohn’s disease you will first be given other medicines. If you do not respond well enough or are intolerant to these medicines, you may be given Steqeyma to reduce the signs and symptoms of your disease.
Ulcerative colitis is an inflammatory disease of the bowel. If you have ulcerative colitis you will first be given other medicines. If you do not respond well enough or are intolerant to these medicines, you may be given Steqeyma to reduce the signs and symptoms of your disease.
If you are not sure if any of the above applies to you, talk to your doctor or pharmacist before using Steqeyma.
Talk to your doctor or pharmacist before using Steqeyma. Your doctor will check how well you are before each treatment. Make sure you tell your doctor about any illness you have before each treatment. Also tell your doctor if you have recently been near anyone who might have tuberculosis. Your doctor will examine you and do a test for tuberculosis, before you have Steqeyma. If your doctor thinks you are at risk of tuberculosis, you may be given medicines to treat it.
Look out for serious side effects
Steqeyma can cause serious side effects, including allergic reactions and infections. You must look out for certain signs of illness while you are taking Steqeyma. See ‘Serious side effects’ in section 4 for a full list of these side effects.
Before you use Steqeyma tell your doctor:
If you are not sure if any of the above applies to you, talk to your doctor or pharmacist before using Steqeyma.
Some patients have experienced lupus-like reactions including skin lupus or lupus-like syndrome during treatment with ustekinumab. Talk to your doctor right away if you experience a red, raised, scaly rash sometimes with a darker border, in areas of the skin that are exposed to the sun or with joint pains.
Heart attack and strokes have been observed in a study in patients with psoriasis treated with ustekinumab. Your doctor will regularly check your risk factors for heart disease and stroke in order to ensure that they are appropriately treated. Seek medical attention right away if you develop chest pain, weakness or abnormal sensation on one side of your body, facial droop, or speech or visual abnormalities.
The Steqeyma pre-filled pen is not recommended for use in children and adolescents under 18 years of age with psoriasis or Crohn’s disease because it has not been studied in this age group. The pre-filled syringe or vial should be used instead for children 6 years of age and older and adolescents with psoriasis. The solution for infusion, pre-filled syringe or vial should be used instead for children weighing at least 40 kg with Crohn's disease.
Steqeyma is not recommended for use in children and adolescents under 18 years of age with psoriatic arthritis, or ulcerative colitis or children with Crohn's disease who weigh less than 40 kg because it has not been studied in this age group.
Tell your doctor or pharmacist:
Steqeyma has no or negligible influence on the ability to drive and use machines.
Steqeyma contains 0.02 mg of polysorbate 80 (E433) in each dosage unit which is equivalent to 0.04 mg/mL. Polysorbates may cause allergic reactions. Tell your doctor if you have any known allergies.
Steqeyma is intended for use under the guidance and supervision of a doctor experienced in treating conditions for which Steqeyma is intended.
Always use this medicine exactly as your doctor has told you. Check with your doctor if you are not sure. Talk to your doctor about when you will have your injections and follow-up appointments.
Your doctor will decide how much Steqeyma you need to use and for how long.
Psoriasis or Psoriatic Arthritis
Crohn’s disease or Ulcerative Colitis
How Steqeyma is given
Talk to your doctor if you have any questions about giving yourself an injection.
If you have used or been given too much Steqeyma, talk to a doctor or pharmacist straight away.
Always have the outer carton of the medicine with you, even if it is empty.
If you forget a dose, contact your doctor or pharmacist. Do not take a double dose to make up for a forgotten dose.
It is not dangerous to stop using Steqeyma. However, if you stop, your symptoms may come back.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Some patients may have serious side effects that may need urgent treatment.
Allergic reactions – these may need urgent treatment. Tell your doctor or get emergency medical help straight away if you notice any of the following signs.
In rare cases, allergic lung reactions and lung inflammation have been reported in patients who receive ustekinumab. Tell your doctor right away if you develop symptoms such as cough, shortness of breath, and fever.
If you have a serious allergic reaction, your doctor may decide that you should not use Steqeyma again.
Infections – these may need urgent treatment. Tell your doctor straight away if you notice any of the following signs.
Steqeyma may make you less able to fight infections. Some infections could become serious and may include infections caused by viruses, fungi, bacteria (including tuberculosis), or parasites, including infections that mainly occur in people with a weakened immune system (opportunistic infections). Opportunistic infections of the brain (encephalitis, meningitis), lungs, and eye have been reported in patients receiving treatment with ustekinumab.
You must look out for signs of infection while you are using Steqeyma. These include:
Tell your doctor straight away if you notice any of these signs of infection. These may be signs of infections such as chest infections, skin infections, shingles or opportunistic infections that could have serious complications. Tell your doctor if you have any kind of infection that will not go away or keeps coming back. Your doctor may decide that you should not use Steqeyma until the infection goes away. Also tell your doctor if you have any open cuts or sores as they might get infected.
Shedding of skin – increase in redness and shedding of skin over a larger area of the body may be symptoms of erythrodermic psoriasis or exfoliative dermatitis, which are serious skin conditions. You should tell your doctor straight away if you notice any of these signs.
Common side effects (may affect up to 1 in 10 people):
Uncommon side effects (may affect up to 1 in 100 people):
Rare side effects (may affect up to 1 in 1 000 people)
Very rare side effects (may affect up to 1 in 10 000 people)
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects, you can help provide more information on the safety of this medicine.
Steqeyma is for single use only. Any unused product remaining in the pre-filled pen should be thrown away. Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.
Steqeyma is a clear to slightly opalescent (having a pearl-like shine), colourless to pale yellow solution for injection. The solution may contain a few small translucent or white particles of protein. It is supplied as a carton pack containing 1 single-dose, glass 1 mL pre-filled pen. Each pre-filled pen contains 45 mg ustekinumab in 0.5 mL of solution for injection.
For any information about this medicine, please contact the Marketing Authorisation Holder:
United Kingdom
This leaflet was last revised in 05/2026.
At the start of treatment, your healthcare provider will assist you with your first injection. However, you and your doctor may decide that you may inject Steqeyma yourself. If this happens, you will get training on how to inject Steqeyma. Talk to your doctor if you have any questions about giving yourself an injection.
1. Gather the supplies for the injection.
a. Prepare a clean, flat surface, such as a table or countertop, in a well-lit area.
b. Remove the carton(s) containing the pre-filled pen(s) from your refrigerator.
c. Make sure you have the following supplies (see Figure B):
Not included in the carton:
2. Check the expiration date on the carton (see Figure C).
3. Wait 30 minutes.
a. Open the carton and remove the pre-filled pen.
b. Leave the pre-filled pen at room temperature (20°C to 25°C) for about 30 minutes to allow it to warm up (see Figure D).
a. Look at the pre-filled pen and make sure you have the correct medicine (Steqeyma) and dosage.
b. Check the pre-filled pen(s) to make sure the number of pre-filled pens is correct:
c. Look at the pre-filled pen and make sure it is not cracked or damaged.
d. Check the expiration date on the label of the pre-filled pen (see Figure E).
5. Inspect the medicine.
a. Look at the medicine and confirm that the liquid is clear to slightly opalescent, colourless to pale yellow (see Figure F).
6. Choose an injection site (see Figure G):
a. You may inject into:
b. Choose a different injection site for each new injection at least 2.5 cm away from the area used for the last injection.
7. Wash your hands.
a. Wash your hands with soap and water and dry them thoroughly (see Figure H).
8. Clean the injection site.
a. Clean the injection site with an alcohol swab using a circular motion (see Figure I).
b. Let the skin dry before injecting.
9. Remove the cap
a. Hold the pre-filled pen in one hand by the injector body with the cap on top. Gently pull the cap straight off with the other hand (see Figure J).
b. Dispose of the cap right away in a sharps disposal container (see Step 15 and Figure J).
10. Place the pre-filled pen on the injection site.
a. Hold the pre-filled pen so that you can see the window.
b. Without pinching or stretching the skin, place the pre-filled pen over the injection site at a 90-degree angle (see Figure K).
11. Give the injection.
a. Press the pre-filled pen firmly against the skin. When the injection starts you will hear the 1st “click” and the light lila plunger rod will begin to fill the window (see Figure L).
b. Keep holding the pre-filled pen firmly against the skin and listen for the 2nd “click” (see Figure L).
c. After you hear the 2nd “click,” continue to hold the pre-filled pen firmly against the skin and count slowly to 5 to make sure you inject the full dose.
12. Remove the pre-filled pen from the injection site.
a. Look at the pre-filled pen and make sure that the light lila plunger rod with the grey stopper is filling the window completely.
b. Remove the pre-filled pen from your skin (see Figure M).
13. If your dose requires 2 injections, inject second dose.
a. If you receive two 45 mg pre-filled pens for a 90 mg dose, immediately repeat Steps 5-12.
14. Care for the injection site.
a. If some bleeding occurs, treat the injection site by gently pressing, not rubbing, a cotton ball or gauze to the site and apply an adhesive bandage if needed.
15. Dispose of the pre-filled pen.
a. Throw away the used pre-filled pen in a sharps disposal container as instructed by your doctor, nurse or pharmacist (see Figure O).
b. The alcohol swab and packaging may be put in your household trash.
Celltrion Healthcare UK Limited, The Charter Building, Charter Place, Uxbridge, UB8 1JG, UK
01753 983 500
http://www.celltrionhealthcare.co.uk/
01753 983 500
01753 983 500