Hospira has issued a voluntary recall of ketorolac tromethamine injection, USP in the U.S. and Singapore due to potential particulate. The generic painkiller is widely used in hospitals and is now in short supply. The presence of particulate has been confirmed through a customer report of visible, floating particulate, identified as calcium-ketorolac crystals, in glass fliptop vials. More than 60 lots are impacted by this recall.    If particulates are not observed prior to administration, intra...