IMPORTANT WARNING:
Certolizumab injection may decrease your ability to fight infection and increase the risk that you will get a serious or life-threatening infection including severe fungal, bacterial, and viral infections that may spread through the body. These infections may need to be treated in a hospital and may cause death. Tell your doctor if you often get any type of infection or if you have or think you may have any type of infection now. This includes minor infections (such as open cuts or sores), infections that come and go (such as cold sores), and chronic infections that do not go away. Also tell your doctor if you have or have ever had diabetes, hepatitis B (a viral infection that affects the liver), human immunodeficiency virus (HIV), or any condition that affects your immune system, and if you live or have ever lived in areas such as the Ohio and Mississippi River valleys where severe fungal infections are more common. Ask your doctor if you do not know if these infections are common in your area. Tell your doctor if you are taking medications that decrease the activity of the immune system.
Your doctor will monitor you for signs of infection during and after your treatment. If you have any of the following symptoms before you begin your treatment or if you experience any of the following symptoms during or shortly after your treatment, call your doctor immediately: sore throat; cough; coughing up bloody mucus; fever; stomach pain; diarrhea; flu-like symptoms; open cuts or sores; weight loss; weakness; sweating; difficulty breathing; difficult, frequent, or painful urination; or other signs of infection.
You may already be infected with tuberculosis (TB; a serious lung infection) or hepatitis B (a virus that affects the liver) but not have any symptoms of the disease. In this case, using certolizumab injection may make your infection more serious and cause you to develop symptoms. Your doctor will perform a skin test to see if you have an inactive TB infection and may order a blood test to see if you have an inactive hepatitis B infection. If necessary, your doctor will give you medication to treat this infection before you start using certolizumab. Tell your doctor if you have or have ever had TB, if you have lived in or visited a country where TB is common, or if you have been around someone who has TB. If you have any of the following symptoms of TB, or if you develop any of these symptoms during your treatment, call your doctor immediately: cough, weight loss, loss of muscle tone, or fever. Also call your doctor immediately if you have any of these symptoms of hepatitis B or if you develop any of these symptoms during or after your treatment: excessive tiredness, yellowing of the skin or eyes, loss of appetite, nausea or vomiting, muscle aches, dark urine, clay-colored bowel movements, fever, chills, stomach pain, or rash.
Some children and teenagers who received medications similar to certolizumab injection developed severe or life-threatening cancers including lymphoma (cancer that begins in the cells that fight infection). Some teenage and young adult males who took certolizumab or similar medications developed hepatosplenic T-cell lymphoma (HSTCL), a very serious form of cancer that often causes death within a short period of time. Most of the people who developed HSTCL were being treated for Crohn's disease (a condition in which the body attacks the lining of the digestive tract, causing pain, diarrhea, weight loss, and fever) or ulcerative colitis (a condition which causes swelling and sores in the lining of the colon [large intestine] and rectum) with certolizumab or a similar medication along with another medication called azathioprine or 6-mercaptopurine. Adults who use certolizumab injection may also be at greater risk of developing certain types of cancer, including skin cancer. Tell your doctor if you or your child have ever had any type of cancer. If you or your child develop any of these symptoms during treatment, call your doctor immediately: unexplained weight loss; swollen glands in the neck, underarms, or groin; easy bruising or bleeding; a new skin lesion or bump; or a change in the size or color of a mole. Your doctor will also check your skin for any changes during your treatment. Talk to your doctor about the risks of using certolizumab injection
Your doctor or pharmacist will give you the manufacturer's patient information sheet (Medication Guide) when you begin treatment with certolizumab injection and each time you refill your prescription. Read the information carefully and ask your doctor or pharmacist if you have any questions. You can also visit the Food and Drug Administration (FDA) website (https://www.fda.gov/Drugs/DrugSafety/ucm085729.htm) or the manufacturer's website to obtain the Medication Guide.
Talk to your doctor about the risks of using certolizumab injection.