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|<center><img src=https://gimg2img2.baidu.com/image_searchit/srcu=http%3A%2F%2Fwww.178yy.com%2FUpload%2FImages%2F2008%2F09%2F2008090215390737562.jpg&refer=http%3A%2F%2Fwww.178yy.com&app=2002&size=f99993072464826,100001345140069&qfm=a80253&nfmt=0auto&gapp=0n138&fmtf=autoJPEG?secw=1665126535750&th=dd406a104f18df25144e9dab72db0ee5 500 width="300"></center><small>[https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%A4%B4%E5%AD%A2%E8%A5%BF%E4%B8%81&step_word=&hs=0&pn=94&spn=0&di=7117150749552803841&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=41940247172755629338%2C22331690552C1833398503&os=3306696200252793053%2C7163813042C604366077&simid=34433816733495814590%2C5975948512C465050337&adpicid=0&lpn=0&ln=642&fr=&fmq=1662534563963_R1662535129948_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined&copyright=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fwww.178yy2Fkfyy8.com%2FUpload%2FImages2Fuploadfile%2F2008%2F09%2F20080902153907375622F20180528101010448.jpg%26refer%3Dhttp%3A%2F%2Fwww.178yy2Fkfyy8.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Dauto%3Fsec%3D16651265353D1665127101%26t%3Ddd406a104f18df25144e9dab72db0ee53D063f909e40b7cdcdc194068519d328dc&fromurl=ippr_z2C%24qAzdH3FAzdH3Fw14tg_z24qAzdH3FAzdH3Fhuyyb_z%26e3Bv54AzdH3FjgAzdH3Fviwggjs_z%26e3B80byy_z26e3Bwfr%26e3Bv54AzdH3FIgejfp4jgpAzdH3FdaabAzdH3FalAzdH3Faa890dnl_z3Ft1%26e3Bfip4s3Dn&gsm=a5&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined&dyTabStr=MCwzLDUsNiw0LDIsMSw3LDgsOQ%3D%3D 来自 呢图网 的图片]</small>

'''头孢西丁'''（cefoxitin），化学名为3-氨基甲酰基氧甲基-7-甲氧基-7-(2-噻吩乙酰胺基)-8-氧代-5-硫-1-杂氮双环[4.2.0]辛-2-烯-2-甲酸，分子式为C16H17N3O7S2，是头霉素类抗生素。它是由链霉菌StreptomycesLactamdurans产生的头霉素（CephamycinC），经半合成制得的一种新型抗生素。其母核与头孢菌素相似，具抗菌性能也类似，习惯上被列入第二代头孢菌素类中。头孢西丁抗菌作用机制是通过与细菌细胞一个或多个青霉素结合蛋白（PBPs）结合，抑制细菌分裂活跃细胞的胞壁合成，从而起抗菌作用。<ref>[https://www.youlai.cn/ask/346B9FMUSqc.html https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%A4%B4%E5%AD%A2%E8%A5%BF%E4%B8%81&step_word=&hs=0&pn=9&spn=0&di=7117150749552803841&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=4194024717%2C2233169055&os=3306696200%2C716381304&simid=3443381673%2C597594851&adpicid=0&lpn=0&ln=642&fr=&fmq=1662534563963_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined&copyright=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fwww.178yy.com%2FUpload%2FImages%2F2008%2F09%2F2008090215390737562.jpg%26refer%3Dhttp%3A%2F%2Fwww.178yy.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Dauto%3Fsec%3D1665126535%26t%3Ddd406a104f18df25144e9dab72db0ee5&fromurl=ippr_z2C%24qAzdH3FAzdH3Fw14tg_z%26e3B80byy_z%26e3Bv54AzdH3FIgejfp4jgpAzdH3FdaabAzdH3FalAzdH3Faa890dnl_z%26e3Bfip4s&gsm=a&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined&dyTabStr=MCwzLDUsNiw0LDIsMSw3LDgsOQ%3D%3D头孢西丁是什么药], 有来医生 , --2020年11月11日</ref>