The number

12 percent

China's drug watchdog said random sample tests have revealed that 12 percent of traditional Chinese medicine is substandard. The China Food and Drug Administration also said on Tuesday that the likelihood of improving the quality of TCM is "not optimistic". Irregularities, including artificial coloring and contamination from the addition of fake or substandard ingredients, were found in 93 of 772 batches of TCM, the administration said.