进食对口服甲磺酸左氧氟沙星片药动学的影响

目的:研究进食对口服甲磺酸左氧氟沙星片药动学的影响。方法:10名男性健康受试者,分别于进食和空腹随机交叉口服甲磺酸左氧氟沙星片200mg后用高效液相色谱法测定血药浓度,采用3p97软件进行数据处理,求出药动学参数。结果:受试者分别给药后,药-时曲线符合二室模型,进食组与空服组Cmax分别为(1.91±0.36)、(2.16±0.69)mg/L,AUC0～t分别为(14.14±2.32)、(14.40±3.11)(mg·h)/L,t1/2β分别为(6.59±1.66)、(6.94±0.81)h。结论:空腹或进食对口服甲磺酸左氧氟沙星片的药动学无影响。

Effect of Eating on Pharmacokinetics of Ethanesulfonic Acid Levofloxacin Tablets

OBJECTIVE: To investigate the effect of eating on pharmacokinetics of ethanesulfonic acid levofloxacin tablets.METHODS: The blood concentration of 10 healthy male subjects were determined by HPLC after receiving single oral dose of 200mg ethanesulfonic acid levofloxacin both before and after eating by randomized crossover way.The data processing was conducted with 3p97 software so as to figure out the pharmacokinetic parameters.RESULTS: The plasma concentration-time curves of the subjects after administration of drugs were in conformity with two-compartment model.The respective main pharmacokinetic parameters of the eating group and the empty stomach group were as follows: Cmax were (1.91±0.36)mg/L and(2.16±0.69) mg/L; AUC0～t were (14.14±2.32)(mg·h)/L and(14.40±3.11)(mg·h)/L; t1/2β were(6.59±1.66)h and(6.94±0.81 )h.CONCLUSION: Neither eating nor empty stomach has effect on the pharmacokinetics of ethanesulfonic acid levofloxacin tablets.