adulterants. Furthermore, it could cause GMP certificate to be cancelled. In Taiwan, those main manufacturer in order to export products abroad, few of them has passed PIC/S GMP audition. For example: Sun-Ten (), Chuang Song Zong Pharmaceutical Co., Ltd. (Chinese: 莊松榮). In China As with more traditional formulae, standards for Chinese patent medicine are found in Volume 1 of Chinese Pharmacopoeia. Some of the resultant medications require a prescription to purchase, while others are considered over-the-counter drugs. Heavy metal limits are present for a few herbs, although they tend to be laxer than those defined for foods. As listed above, intentionally added heavy metals and drug adulterants are found in many products. References Fratkin, Jake (2001). Chinese Herbal Patent Medicines. Shya Publications. . Taylor, Mark (1998). Chinese Patent Medicines: A Beginner's Guide. Global Eyes International Press. . Taiwan herb pharmacopeia See also Kampo (Japanese adaptation of Chinese medicine) Kampo list (list of Japanese versions of Chinese patent medicines) Traditional Chinese medicine