Emergent BioSolutions specializes in manufacturing critical medical countermeasures, public health threat treatments, and life-saving therapeutics. Its most prominent commercial product is NARCAN (naloxone hydrochloride nasal spray), an emergency treatment used to reverse opioid overdoses. Additionally, the company produces specialized anthrax and smallpox vaccines, chemical threat antidotes, and botulism treatments primarily supplied to government stockpiles and institutional healthcare providers.