Federal health authorities have asked the manufacturers of four widely used immunosuppressive drugs to bolster safety warnings on the risk of developing opportunistic fungal infections.
The drugs, Humira, Cimzia, Enbrel and Remicade, belong to a class of medications known as tumor necrosis factor alpha blockers (TNF-alpha blockers), which suppress the immune system and are approved to treat several conditions including rheumatoid arthritis, juvenile idiopathic arthritis, psoriatic arthritis, plaque psoriasis, ankylosing spondylitis and Crohn's disease.