Herbs	Formulation	adverse events	study ID
Bushen Huoxue No. 1	tablet	No adverse effects were observed.	Chen YB 1995
Composite radix Trichosanthin	tablet	No obvious adverse effects were observed.	Chen XH 1993
Ginseng	capsule	No adverse effects were observed.	Sotaniemi 1995
Holy basil leaves	herbal tea	No adverse effects were observed.	Agrawal 1996
Huoxue Jiangtang Pingzhi	decoction	No adverse effects were observed.	Wu YN 2003
Inolter	capsule	No adverse effects were observed.	Agrawal 2002
Jiangtang Tiaozhi Tang	decoction	No obvious adverse effects were observed.	Wei JL 2003
Kelening	capsule	Two patients developed nausea and two developed mild diarrhoea. While in glibenclamide group, five patients developed nausea, four had dizziness, and four had hypoglycaemic effect.	Zhou P 1997
Liuwei Dihuang Tang	decoction	No adverse effects were observed.	Wu YN 2003
Myrcia uniflora	herbal tea	No adverse effects were observed.	Russo 1990
Qidan Tongmai	tablet	No adverse effects were observed.	Zhang M 2001a
Shengqing Jiangtang recipe	decoction	No adverse effects were observed.	Cao FK 1997
Shenqi Yuxiao Tang	decoction	No adverse effects were observed.	Qing ZQ 2001
Tangfu Kang	pill	Twelve patients developed mild diarrhoea, and five had abdominal pain. While in gliclazide control group, 11 patients had nausea, eight had diarrhoea, and one appeared urticaria.	Xie CG 1996
Tangzhi Xiao	capsule	Four patients had diarrhoea, two had abdominal distension, and one had poor appetite. Similar adverse effects in gliclazide treated patients, including four with diarrhoea, one abdominal distension, one poor appetite, and one abdominal pain.	Li YM 2003
Tianyuan Jiangtang Wan	pill	One patient developed urticaria, and relieved by stopping the herbal treatment.	Guo GY 1998
TCT (traditional Chinese treatment)	capsule	Two patients stopped treatment due to adverse effects including one patient with diarrhoea and one with dry mouth. One patient from placebo group developed vertigo.	Vray 1995
Xiaoyao San	decoction	No hypoglycaemic effect was observed.	Deng QW 2003
Xianzhen Pian	tablet	No adverse effects were observed.	Pan MZ 1997
Yuquan Wan	pill	No obvious adverse effects were observed.	Chen XH 1993