Enbrel (etanercept) Important Information, How to Take and Side Effects


 

3. Important Information. A rare fast-growing lymphoma (cancer) type was recorded in some people using Enbrel. It affects the spleen, bone marrow, liver, and can be lethal. That condition has occurred mostly in young adults/teenagers who used Enbrel or similar medications for ulcerative colitis or Crohn’s disease treatment.