Alkermes to acquire Avadel for up to $2.1 billion
Oct 22 (Reuters) - Alkermes ALKS.O said on Wednesday it will acquire Avadel Pharmaceuticals AVDL.O for up to $2.1 billion gaining access to the company's approved excessive daytime sleepiness drug. (Reporting by Sriparna Roy in Bengaluru; Editing by Tasim Zahid) ((Sriparna.Roy@thomsonreuters.com;))