头孢吡肟盐酸盐为盐酸头孢吡肟加适量L-精氨酸制成的无菌混合物，为白色至淡黄色粉末，几乎无臭，有引湿性。体外试验表明，本品对革兰氏阳性菌和阴性菌均有作用。本品对细菌染色体编码的β-内酰胺酶的亲和力低，可高度耐受多数β-内酰胺酶的水解，并可迅速渗入革兰阴性菌的细胞内。在菌体细胞内，其靶分子为青霉素结合蛋白(PBP)。
Antibacterial
Cefepime is an extended-spectrum parenteral cephalosporin antibiotic active in vitro against a broad spectrum of gram-positive and gram-negative aerobic bacteria. Cefepime has a decreased propensity to induce beta-lactamases compared with other beta-lactam antibiotics.
Cefepime has a pharmacokinetic disposition similar to that of other renally eliminated cephalosporins, with a half-life of approximately 2 hours. Cefepime has demonstrated clinical efficacy against a variety of infections, including urinary tract infections, pneumonia, and skin and skin structure infections. Cefepime is generally well tolerated.