Objective To promote rational use of traditional Chinese medicine ( TCM ) decoction pieces by rational drug use monitoring sys-tem.Methods Adopting rule builder system of clinical rational drug use system to build rational use TCM decoction pieces rules.The prescription quality of TCM decoction pieces will be placed in the four stages of PDCA cycle.By means of prescription analysis ( P ) to find the problem , rule builder(D) to carry out problem, prescription intervention(C) to check problem, prescription comment(A) to summarize problem.The prescrip-tion quality continuous improvement with cycling continuously of PDCA.Results Intervention of alertting , warning and intercepting through the doctor ’ s prescribed interface , the number of irrational TCM decoction pieces prescriptions dropped from 6.91%to 5.35%after intervening ,but the overdose prescriptions are still widespread.Conclusion The comment and intervention system of TCM decoction pieces prescriptions based on in-telligence inference engine obviously improved the prescription quality.It can be widyly used in TCM decoction pieces prescriptions quality management.

A male patient aged 26 years received intramuscular infusion of ketorolac tromethamine 30 mg for abdominal pain.About 5 minutes after injection finish,the patient felt dizziness and weakness.Meanwhile,he developed generalised sweating and syncope.His blood pressure was 65/40 mm Hg and heart rate was 108 beats/min.He was immediately given oxygen inhalation,intravenous infusion of epinephrine,dexamethasone,and metaraminol,and intramuscular promethazine.About 30 minutes later,the patient came to his senses and his symptoms gradually improved with a blood pressure of 105/75 mm Hg and a heart rate of 80 beats/min.Thereafter,no discomfort recurred.

A male patient aged 26 years received intramuscular infusion of ketorolac tromethamine 30 mg for abdominal pain.About 5 minutes after injection finish,the patient felt dizziness and weakness.Meanwhile,he developed generalised sweating and syncope.His blood pressure was 65/40 mm Hg and heart rate was 108 beats/min.He was immediately given oxygen inhalation,intravenous infusion of epinephrine,dexamethasone,and metaraminol,and intramuscular promethazine.About 30 minutes later,the patient came to his senses and his symptoms gradually improved with a blood pressure of 105/75 mm Hg and a heart rate of 80 beats/min.Thereafter,no discomfort recurred.