Humira (generic: adalimumab) is a prescription medication used to treat certain kinds of arthritis, ankylosing spondylitis, Crohn's disease, plaque psoriasis, and ulcerative colitis in adults and children.  Humira belongs to a group of drugs called tumor necrosis factor (TNF) blockers, which help prevent inflammation.

This medication comes in an injectable form in prefilled syringes.  Humira is injected just under the skin usually once every other week.

Common side effects of Humira include reaction at the injection site, sinus infections, and headaches.