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合霉秦是1949年从放射菌属Streptomycesvenzuele培养物中提出的,苏联医学科学工作者首先用人工方法合成。合霉素是一种不纯制剂,它含有50%之左旋霉素,具有抗菌作用,另外50%为右旋霉素,无抗菌作用,故又称之为混旋氯霉素,其临床应用的剂量,一般应比左旋霉素大。合霉素对葡萄球菌,肺炎球菌、仿寒及痢疾杆菌与大肠杆菌,百日咳杆菌和致病性厌气菌等,均具有良好的抗菌作用,故临床用途十分广泛,又因此药在国内已能合成,价值较左旋霉素便宜,故目前应用颇广。一般认为,合霉素的毒性较小,常见之副作用有恶心,呕吐,皮疹,粘膜发炎等,但最近数年,文
Helicobacter pylori was introduced from a culture of Streptomycesvenzuele in 1949, and Soviet medical scientists first synthesized it by artificial means. Synthomycin is an impure preparation, which contains 50% of the left-thalidomide, with antibacterial activity, while the other 50% of the right-tamycin, no antibacterial effect, it is also known as the mixed chloramphenicol, its clinical application The dose should generally be greater than levomycin. Clindamycin Staphylococcus aureus, pneumococcal, imitation of cold and dysentery bacilli and Escherichia coli, Bordetella pertussis and pathogenic anaerobic bacteria, etc., have a good antibacterial effect, so the clinical use is very wide, and therefore the drug has been able to Synthesis, the value of more than levosimycin cheaper, it is quite wide range of applications. Generally believed that the toxicity of tetracycline smaller, common side effects are nausea, vomiting, rash, mucosal inflammation, but in recent years, the article