摘要目的:从药物转运体的角度分析含二甲双胍门诊处方合并其他用药的潜在药物相互作用。方法:收集海南省人民医院2019年7-12月门诊所有含二甲双胍处方，参照药品说明书、Drugbank、Pubmed等数据库分析处方中合并用药与二甲双胍的潜在相互作用。结果:共收集含二甲双胍门诊处方15 568张，其中男性患者、女性患者处方分别为9 146、6 422张。联合用药处方14 902张，联合用药种类主要包括其他降糖药、抗血小板药、降压药、降脂药、神经保护药。药物转运体层面与二甲双胍联用具有潜在相互作用的包括阿司匹林、阿托伐他汀钙、瑞格列奈、比索洛尔、美托洛尔、氯吡格雷，共11 614次。其中通过抑制有机阳离子转运体1（OCT1）共5 938次；通过抑制OCT2共5 676次。结论:该院含二甲双胍门诊处方与其常联用的慢性病治疗药不存在配伍禁忌，但门诊医生对潜在相互作用导致的剂量调整认识度不足。

abstractsObjective:To investigate the potential drug interactions of outpatient prescriptions containing metformin combined with other drugs from the perspective of drug transporters.Methods:The prescriptions containing metformin that were used in the Outpatient Department of Hainan General Hospital, China between July and December 2019 were collected. The potential interaction between drugs and metformin used in the prescriptions was analyzed according to drug instructions, Drugbank, PubMed databases.Results:A total of 15 568 outpatient prescriptions containing metformin were collected, including 9 146 prescriptions for male patients and 6 422 prescriptions for female patients. A total of 14 902 prescriptions contained combined medication. The drugs used in combination included other hypoglycemic drugs, antiplatelet drugs, antihypertensive drugs, lipid-lowering drugs, and neuroprotective drugs. The drug transporters including aspirin, atorvastatin calcium, repaglinide, bisoprolol, metoprolol and clopidogrel had a potential interaction with metformin. There were 11 614 prescriptions containing drug transporters and metformin, including 5 938 prescriptions inhibiting organic cation transporter 1 and 5676 prescriptions inhibiting organic cation transporter 2.Conclusion:There is no incompatibility between the outpatient prescriptions containing metformin and the commonly used drugs for chronic diseases, but the outpatient doctors do not have enough knowledge about dose adjustment caused by potential interaction.