Alkermes Public Limited Company is a biopharmaceutical company. The Company is engaged in researching, developing and commercializing, both with partners and on its own, pharmaceutical products that are designed to meet unmet medical needs of patients in major therapeutic areas. The Company has a portfolio of more than 20 products and a clinical pipeline of product candidates being developed for the treatment of central nervous system (CNS) disorders, such as addiction, schizophrenia and depression. The Company is conducting clinical studies on new pharmaceutical products. These include Aripiprazole Lauroxil, ALKS 5461, ALKS 3831, ALKS 8700 and RDB 1419. The Company's main marketed products include RISPERDAL CONSTA, INVEGA SUSTENNA/XEPLION, AMPYRA/FAMPYRA, BYDUREON and VIVITROL.