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

-biologic medicines such as abatacept, adalimumab, anakinra, etanercept, golimumab, infliximab, natalizumab, rituximab, secukinumab, tocilizumab, ustekinumab
-live vaccines
-tofacitinib

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

-cancer
-diabetes
-Guillian-Barre syndrome
-heart failure
-hepatitis B or history of hepatitis B infection
-immune system problems
-infection or history of infections
-low blood counts, like low white cell, platelet, or red cell counts
-multiple sclerosis
-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 or allergic reaction to certolizumab, other medicines, latex, rubber, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Visit your doctor or health care professional for regular checks on your progress. Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse. Your condition will be monitored carefully while you are receiving this medicine.

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 for advice if you get a fever, chills, sore throat, or other symptoms of an infection. Do not treat yourself. This medicine may decrease your body''s ability to fight infection. Try to avoid being around people who are sick.

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.

If you are using this medicine at home, keep the syringes in the refrigerator between 2 to 8 degrees C (36 to 46 degrees F). Do not freeze. Protect from light. Keep this medicine in the original container. Throw away any unused medicine after the expiration date on the label.