Avadel Pharmaceuticals PLC is a specialty pharmaceutical company. It identifies, develops, and commercializes branded pharmaceutical products including controlled-release therapeutic products based on its proprietary drug delivery technologies in the United States. The company is engaged in development of differentiated drug products for administration in various forms such as capsules, tablets, injectables etc. Its commercialized product LUMRYZ is an extended-release formulation of sodium oxybate indicated to be taken once at bedtime for the treatment of cataplexy or EDS in adults with narcolepsy.