Biologics are a type of medicine that affects your immune system. They can lower the ability of your immune system to fight infections. Serious infections have happened in patients taking anti-TNF biologics. These infections include tuberculosis (TB) and infections caused by viruses, fungi, or bacteria that have spread throughout the body. Some patients have died from these infections.
- Your doctor should test you for TB before starting biologic therapy.
- Your doctor should monitor you closely for signs and symptoms of TB during treatment with a biologic.
Before starting with a biologic, tell your doctor if you live or have lived in certain parts of the country (such as the Ohio and Mississippi River valleys) where there is an increased risk for getting certain kinds of fungal infections (histoplasmosis, coccidioidomycosis, or blastomycosis). If you do not know if you have lived in an area where histoplasmosis, coccidioidomycosis, or blastomycosis is common, ask your doctor.