Arizona's attorney general sued Insys Therapeutics Inc. on Thursday, accusing the drugmaker of engaging in a fraudulent marketing scheme aimed at increasing sales of a fentanyl-based cancer pain medicine.http://www.businessinsurance.com/article/20170831/NEWS06/912315569/Arizona-accuses-Insys-of-fraudulent-opioid-marketing-scheme?utm_campaign=BI20170831DailyBriefing&utm_medium=email&utm_source=ActiveCampaign