A District of Massachusetts court certified a class of state and city plaintiffs bringing a class complaint alleging that McKesson Corp., a large drug distributer, organized a scheme to increase the posted average wholesale prices for drugs, which is used to calculate payments to pharmacies. The 2008 complaint alleges that the scheme affected prices from August 2001 to June 2005. In 2008, McKesson settled for $350 million a class action raising similar claims that was filed by consumers and health insurers.