Before using sarilumab, tell your doctor or pharmacist if you are allergic to it; 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, past/current/returning infections, liver problems, blood/bleeding problems, stomach/abdominal problems (such as ulcers, diverticulitis).

Sarilumab 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 sarilumab 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 sarilumab) 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.