头孢唑啉是第一代头孢菌素,临床中通常称之为先锋V号。其特点是耐酶、高效、低毒,对革兰阳性菌及阴性菌一般均有效,临床适应症非常广泛,主要用于敏感菌所致的呼吸道感染、泌尿生殖系、胆囊炎、肝脓肿、心内膜炎、败血症、软组织及耳部感染等。由于本品对大肠杆菌作用较强,且大部以原形药 Cefazolin is the first generation cephalosporins, commonly referred to in clinical vanguard V number. Its characteristics are resistant to enzymes, high efficiency, low toxicity, Gram-positive bacteria and negative bacteria are generally effective, a wide range of clinical indications, mainly for respiratory tract infections caused by susceptible strains, genitourinary system, cholecystitis, liver abscess, Endocarditis, septicemia, soft tissue and ear infections. Because of the strong role of Escherichia coli, and most of the prototype drugs