Several drugs containing valsartan being recalled due to contamination with a potential carcinogen

Several drugs containing the ingredient valsartan are being recalled by their manufacturers. An impurity, N-nitrosodimethylamine (NDMA), was found in the valsartan used in these products. The valsartan was supplied by Zhejiang Huahai Pharmaceuticals. NDMA is a potential human carcinogen, which means that it could cause cancer with long-term exposure. Five companies have affected products, which are being recalled (identified in table below).