Assertio Therapeutics is an American specialty pharmaceutical company, which mainly markets products for treatment in neurology, pain and diseases of the central nervous system. The drug company makes proprietary drug therapies using its patented AcuForm, an extended-release technology. Some of its best known products include Gralise, CAMBIA, Zipsor and Lazanda nasal spray. The company was founded in 1995 and is headquartered in Newark, California.