Emergent BioSolutions Inc. is a biopharmaceutical company developing vaccines and antibody therapeutics for infectious diseases and opioid overdoses, and providing medical devices for biodefense purposes. Among the company's products are the controversial BioThrax (Anthrax Vaccine Adsorbed) and Narcan (naloxone) for the emergency treatment of opioid overdose. The company also manufactures pharmaceuticals addressing infectious diseases like cholera and typhoid. Emergent BioSolutions was founded on 1998 and is headquartered in Gaithersburg, MD.