tuberculosis, lymphoma other cancers, nervous system and blood disorders and allergic reactions have occurred. tell your doctor if you've been someplace where fungal infections are common. or if you're prone to infections, have cuts or sores, have had hepatitis b, have been treated for heart failure or if you have persistent fever, bruising, bleeding or paleness. don't start enbrel if you have an infection like the flu. since enbrel, my mom's back to being my mom. visit enbrel.com... and use the joint damage simulator to see how joint damage could progress. ask about enbrel. enbrel. fda approved for over 18 years.