Tocilizumab

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Warning

This medication may lower your ability to fight an infection. This may make you more likely to get a serious (rarely fatal) infection or make any infection you have worse. Your risk may be increased if you are also taking other drugs that can lower your ability to fight an infection (such as methotrexate or corticosteroids). Before using tocilizumab, tell your doctor your medical history, especially of any kind of infection. During treatment, get medical help right away if you have any signs of infection (such as sore throat that doesn't go away, fever, swollen lymph nodes, chills, cough, pain when urinating).

Before and during treatment with this medication, your doctor will test you for tuberculosis (TB). Your doctor should also monitor you for symptoms of TB during and after treatment with this drug. If needed, treatment for tuberculosis or other infections should be given before receiving this medication.

Precautions

Before using tocilizumab, tell your doctor or pharmacist if you are allergic to it; or to any tocilizumab products; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: diabetes, infections (including past/current/returning), liver problems, low blood cell count, nervous system problems (such as multiple sclerosis), stomach/abdominal problems (such as ulcers, diverticulitis).

Tocilizumab can make you more likely to get infections or may make current infections worse. Stay away from anyone who has an infection that may easily spread (such as chickenpox, COVID-19, measles, tuberculosis, flu). Tell your doctor if you live in, have lived in, or have traveled to certain areas where there is an increased chance of getting certain kinds of fungal infections (blastomycosis, coccidioidomycosis, histoplasmosis). Talk to your doctor if you have been exposed to an infection or for more details.

Tell your health care professional that you are using tocilizumab before having any immunizations/vaccinations. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose).

Drugs that affect the immune system (such as tocilizumab) may increase your risk of certain cancers. Tell your doctor if you have ever had any type of cancer.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is unknown if this drug passes into breast milk. Consult your doctor before breastfeeding.

Side Effects

See also Warning section.

Headache or irritation/redness/pain at the injection site may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor right away if you have any serious side effects, including: stomach/abdominal pain.

Tocilizumab has rarely caused very serious (possibly fatal) liver disease. This effect may occur months to years after starting this medication. Tell your doctor right away if you develop symptoms of liver disease, such as nausea/vomiting that doesn't stop, loss of appetite, yellowing eyes/skin, dark urine.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

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Drug information is selected from data included with permission and copyrighted by First DataBank, Inc. This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional. Always seek the advice of your healthcare professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your healthcare professional. This information does not contain any assurances that this product is safe, effective or appropriate for you.

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Information expires December 2025.

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