Nearly one million bottles of heart and kidney medication have been recalled nationwide over the possibility of a “foreign substance,” according to the US Food and Drug Administration. California-based Amgen, Inc. voluntarily recalled at least 944,142 bottles of Corlanor and Sensipar tablets after “unexpected foreign matter” was found “in the reserve sample of one of the identified lots,” the California state Board of Pharmacy said in an alert. “The unexpected foreign matter was localized on the exterior tablet surface, over the coating,” the board said. “Therefore, as a precautionary measure, all lots within expiry that were processed in AML Building 23 packaging area, where…