Do not take this medicine with any of the following medications:

-live virus vaccines
This medicine may also interact with the following medications:

-cyclosporine
-biologic medicines such as abatacept, adalimumab, anakinra, certolizumab, etanercept, golimumab, infliximab, rituximab, secukinumab, tocilizumab
-warfarin

They need to know if you have any of these conditions:

-cancer
-diabetes
-history of skin cancer
-immune system problems
-infection (especially a virus infection such as chickenpox, cold sores, or herpes) or history of infections
-new or changing lesions on your skin
-receiving or have received allergy shots
-receive or have received phototherapy for the skin
-recently received or scheduled to receive a vaccine
-tuberculosis, a positive skin test for tuberculosis, or have recently been in close contact with someone who has tuberculosis
-an unusual reaction to ustekinumab, latex, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Your condition will be monitored carefully while you are receiving this medicine. Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.
You will be tested for tuberculosis (TB) before you start this medicine. If your doctor prescribes any medicine for TB, you should start taking the TB medicine before starting this medicine. Make sure to finish the full course of TB medicine.
Call your doctor or health care professional if you get a cold or other infection while receiving this medicine. Do not treat yourself. This medicine may decrease your body''s ability to fight infection.
Talk to your doctor about your risk of cancer. You may be more at risk for certain types of cancers if you take this medicine.

Keep out of the reach of children.
Store the prefilled syringes or vials in a refrigerator between 2 to 8 degrees C (36 to 46 degrees F). Keep in the original carton. Protect from light. Do not freeze. Do not shake. The vials should be stored upright. Throw away any unused medicine that has been stored in the refrigerator after the expiration date.
If needed, a prefilled syringe may be stored at room temperature up to 30 degrees C (86 degrees F) for a maximum of 30 days. Keep it in the original carton to protect from light. Record the date when it is removed from the refrigerator on the carton. Once a syringe has been stored at room temperature, do not put it back in the refrigerator. Throw the syringe away after 30 days at room temperature, even if it still has medicine in it.