AbbVie Inc. is a pharmaceutical company headquartered in North Chicago, Illinois. It is ranked 6th on the list of largest biomedical companies by revenue. Their primary product is Humira (adalimumab) ($21 billion in 2022 revenues, 37% of total), administered via injection. It is approved to treat autoimmune diseases including rheumatoid arthritis, Crohns disease, plaque psoriasis, and ulcerative colitis.