Korzeniowski O M, Scheld W M, Sande M A
Antimicrob Agents Chemother. 1977 Aug;12(2):157-62. doi: 10.1128/AAC.12.2.157.
Two cephalosporin antibiotics, cefaclor and cephalexin, were administered orally to healthy, adult male volunteers for comparison of their pharmacological properties. In doses of 250 mg orally, cefaclor produced a peak serum concentration of 6.01 +/- 0.55 (standard deviation [SD]) mug/ml compared with 9.43 +/- 2.36 mug/ml for cephalexin (P < 0.01). The half-lives were 0.58 +/- 0.07 (SD) h and 0.80 +/- 0.12 (SD) h, and elimination constants were 1.22 +/- 0.15 and 0.88 +/- 0.13 h(-1) for cefaclor and cephalexin, respectively (P < 0.001). Neither drug showed accumulation over the dosing period, and both were well tolerated.
给健康成年男性志愿者口服两种头孢菌素抗生素——头孢克洛和头孢氨苄,以比较它们的药理特性。口服250毫克剂量时,头孢克洛的血清峰值浓度为6.01±0.55(标准差[SD])微克/毫升,而头孢氨苄为9.43±2.36微克/毫升(P<0.01)。头孢克洛和头孢氨苄的半衰期分别为0.58±0.07(SD)小时和0.80±0.12(SD)小时,消除常数分别为1.22±0.15和0.88±0.13小时-1(P<0.001)。两种药物在给药期间均未显示出蓄积现象,且耐受性良好。