经方中大黄煎服方式探析OA北大核心

The purpose of this paper is to explore the decoction and dosing methods of rhubarb root and rhizome in classical prescriptions and to provide a reference basis for the clinical use of rhubarb root and rhizome.By collating the relevant classical prescriptions of rhubarb root and rhizome in Shanghan Lun and Jingui Yaolüe,the relationship between its decoction and dosing methods and the syndrome was analyzed.The decoction of rhubarb root and rhizome in classical prescriptions can be divided into three categories:simultaneous decoction,decoction later,and other methods(impregnation in Mafei decoction,decoction with water from the well spring first taken in the morning,and pills).If it enters the blood level or wants to slow down,rhubarb root and rhizome should be decocted at the same time with other drugs.If it enters the qi level and wants to speed up,rhubarb root and rhizome should be decocted later.If it wants to upwardly move,rhubarb root and rhizome should be immersed in Mafei decoction.If it wants to suppress liver yang,rhubarb root and rhizome should be decocted with water from the well spring first taken in the morning.If the disease is prolonged,rhubarb root and rhizome should be taken in pill form.The dosing methods of rhubarb root and rhizome can be divided into five categories:draught,twice,three times,before meals,and unspecified.For acute and serious illnesses with excess of pathogenic qi and adequate vital qi,we choose draught.For gastrointestinal diseases,we choose to take the medicine twice.For achieving a moderate and long-lasting effect,we choose to take the medicine three times.If the disease is located in the lower part of the heart and abdomen,we choose to take it before meals.The use of rhubarb root and rhizome in clinical practice requires the selection of the appropriate decoction and dosing methods according to the location of the disease,the severity of the disease,the patient's constitution,and the condition after taking the medicine.