Last month a major Chinese manufacturer of rabies vaccines was found to have fabricated records and was ordered to cease production. This month two more Chinese drugmakers have announced that a blood-pressure medication they exported to Taiwan contained a potentially cancer-causing impurity. The name of the two manufacturers is Tianyu Pharm and Rundu Pharma. According to rappler.com they said the batches of valsartan an active ingredient widely used in medications for high blood pressure and congestive heart failure contained N-nitrosodimethylamine (NDMA) which is believed to potentially cause cancer through long-term use. On August 6 Tianyu Pharm made its announcement in
