The FDA has expanded a recall of a hypertension drug over concerns it may contain a carcinogen. The latest recall involves valsartan that was made by a Chinese pharmaceutical company. The recalled valsartan contains a potentially dangerous component, N-nitrosodimethylamine (NDMA), which laboratory studies have shown can cause cancer or liver damage in patients. The FDA says not all valsartan medications contain NDMA, and has provided a list of products included in the recall, as well as a list of non-impacted valsartan. Posted August 7, 2018. Via USA Today.