U.S. health regulators are telling drugmakers to immediately pull their popular heartburn drugs off the market after determining that a contamination issue with the medications poses a greater risk than previously thought. The move from the Food and Drug Administration Wednesday applies to all prescription and over-the-counter versions of ranitidine, best known by the brand name Zantac. Patients should stop taking any of the medications they currently have and throw them away, the FDA said.
