Based on data mining, the study on the medication rule of Chinese patent medicine for constipation

To analyze the medication rule of Chinese patent medicine compound for constipation by data mining,and to provide reference for the treatment of constipation.Methods:The Chinese patent medicines for constipation in the Pharmacopoeia of the People’s Republic of China(2020)and Chinese patent medicine prescription database of yaozhi.com(https://db.yaozh.com/chufang)were collected and sorted.The prescriptions and drug composition were input into Excel2010.ategories,nature,flavour and channel tropism of drugs were analyzed by using ancient and modern medical case cloud platform(V2.3.5).The cluster analysis of high-frequency drugs was carried out by SPSS 22.0,and rules of high-frequency drugs were analyzed by Apriori algorithm provided by SPSS modeler 18.0.Results:Two hundred and thirty-six Chinese patent medicine prescriptions that met the requirements were collected,containing 349 Chinese medicines in total,with a total frequency of 2,277.The drugs with frequency≥25 times were high-frequency drugs,with a total of 24 flavours,and the top 5 were Dahuang(Rhei radix et rhizoma),Huangqin(Scutellariae radix),Gancao(Glycyrrhizae radix et rhizoma),Huanglian(Coptidis rhizoma)and Bohe(Menthae haplocalycis herba).The top 3 frequency of efficacy of high-frequency drugs were“Heat-Clearing(remove heat from the body surface and inside)”drugs,“Purgating(to promote excretion of stools)”drugs and“Reinforcing”(to supplement the body’s lack of“Qi,Blood,Yin and Yang”)drugs.The nature of high-frequency drugs were cold,warm and flat.The top 3 flavour of the high frequency drugs were bitter,spicy and sweet.The top 4 channel tropism of high-frequency drugs were“Spleen”,“Stomach”,“Lung”,“Large intestine”.According to the association rule,11 drug pairs were obtained,and the core drug pairs were Zhizi(Gardeniae fructus)-Rhei radix et rhizoma,Huangbo(Phellodendri chinensis cortex)-Rhei radix et rhizoma.Four new methods were obtained based on cluster analysis.Conclusion:Chinese patent medicine has a certain regularity in the treatment of constipation.This paper can provide some references for the clinical treatment of constipation with Chinese medicine.