Objective: Gegen Qinlian decoction is a traditional Chinese classical formula for diarrhea of damp-heat syndrome.Professor Tong Xiao-lin used this formula to treat type 2 diabetes with damp-heat syndrome according to "treating different diseases with the same therapy" thought in traditional chinese medicine.The result showed it had good effect on type 2 diabetes with damp-heat syndrome.Not only the herbs in this formula affect the effect

the dose of the herbs had sigificant influences on the effect.In this article

four clinical examples were chosen to explain the clinical use of different doses of Gegen Qinlian decoction.When treating type 2 diabetic disease with high level blood glucose

the large doses should be used

and when the blood glucose were controlled

the small doses should be used to keep the patient's condition and the blood glucose stable.When the formula was used to treat diseased

the appropriate dose should be selected to fit for different status of the illness to get the best effect.