Assertio Holdings, Inc., a commercial pharmaceutical company, provides medicines in the areas of neurology, rheumatology, and pain and inflammation.

Its pharmaceutical products include INDOCIN, an oral and suppository solution for the treatment of moderate to severe rheumatoid arthritis, including acute flares of chronic disease; ankylosing spondylitis and osteoarthritis; and acute painful shoulder and gouty arthritis.

It also provides Sympazan, a benzodiazepine for the adjunctive treatment of seizures related with lennox-gastaut syndrome in patients aged two years of age or older; CAMBIA, a non steroidal anti inflammatory drug (NSAID) for the treatment of migraine pain, nausea, photophobia, and phonophobia; Zipsor, a NSAID for relief of mild to moderate pain in adults; SPRIX, a NSAID for the short term management of moderate to moderately severe pain that requires analgesia at the opioid level; and Otrexup, a single-dose auto-injector containing a prescription medicine and methotrexate that is used to treat patients with severe, active rheumatoid arthritis, and active polyarticular juvenile idiopathic arthritis, as well as treat adult with severe, recalcitrant, and disabling psoriasis.

The company was formerly known as Assertio Therapeutics, Inc. and changed its name to Assertio Holdings, Inc. in May 2020.

Assertio Holdings, Inc. was incorporated in 1995 and is headquartered in Lake Forest, Illinois.