Sugihara H, Narita N, Takatsu R, Horiuchi M, Yonenami K, Hotta M, Shibahara K, Kamo T, Negishi Y
Second Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan.
J Clin Pharm Ther. 1998 Oct;23(5):375-9. doi: 10.1046/j.1365-2710.1998.00176.x.
To determine the appropriate method of administration of the cephem antibiotic cefpirome sulphate in elderly patients.
We studied cefpirome's pharmacokinetics in patients with urinary tract infections. Patients received cefpirome sulphate 0.5 g by intravenous drip infusion over 30 mins.
Patients with a creatinine clearance rate (Ccr) of 80 ml/min had an AUC of 96.7 microg.h/ml and a T1/2 of 2.36 h, whereas those with Ccr of 40-80 ml/min had an AUC of 172.0 microg.h/ml and a T1/2 of 3.45 h and those with Ccr of < 40 ml/min had an AUC of 152 microg.h/ ml and a T1/2 of 4.86 h.
These results indicate that decreased kidney function can cause increases in the AUC and T1/2 of cefpirome. Thus in elderly patients and perhaps also in other patients with decreased kidney function, cefpirome should be administered at an initial dose of 0.5 g.
确定老年患者中头孢菌素类抗生素硫酸头孢匹罗的合适给药方法。
我们研究了硫酸头孢匹罗在尿路感染患者中的药代动力学。患者接受0.5g硫酸头孢匹罗,在30分钟内静脉滴注。
肌酐清除率(Ccr)为80ml/分钟的患者的曲线下面积(AUC)为96.7μg·h/ml,半衰期(T1/2)为2.36小时;Ccr为40 - 80ml/分钟的患者的AUC为172.0μg·h/ml,T1/2为3.45小时;Ccr小于40ml/分钟的患者的AUC为152μg·h/ml,T1/2为4.86小时。
这些结果表明肾功能下降可导致硫酸头孢匹罗的AUC和T1/2增加。因此,在老年患者以及可能其他肾功能下降的患者中,硫酸头孢匹罗的初始剂量应为0.5g。