The California Supreme Court has reinstated a lawsuit filed by pharmacies against Pfizer Inc. that accuses the company of price fixing. The lawsuit claims that Pfizer and other drug companies conspired together to keep cheaper medications from Canada out of the U.S.  The suit was dismissed by  a lower court in 2008 after Pfizer argued that the pharmacies weren’t harmed because the higher prices were passed on to customers. That argument was rejected earlier this week and the case was sent back down to an Oakland, Calif., trial court.