Ranbaxy Pharmaceuticals Canada Inc. is recalling six lots of its prescription RAN-Metformin drug from the Canadian market. Company testing identified two lots (#AJY8006A and #AJY8007A) with levels of NDMA above what is considered acceptable if the drug were to be taken over a lifetime. The company is recalling an additional four lots (#AJY8005A, #AJY8005B, #AJY8008A...