Riff L J, Moreschi G
Antimicrob Agents Chemother. 1977 Apr;11(4):609-14. doi: 10.1128/AAC.11.4.609.
Thirteen male subjects received 1 mg of either gentamicin or netilmicin per kg, first intramuscularly and then intravenously. After the intramuscular dose, concentrations of gentamicin in the serum were more variable than those of netilmicin. After the intravenous dose, the distribution phase of netilmicin was twice as rapid as gentamicin. The average half-times of the elimination phase were similar, but there was marked variability among the subjects receiving gentamicin. Serum clearance of netilmicin was more rapid than that of gentamicin and could not be attributed to renal elimination. The data indicate that, after intramuscular administration, netilmicin may produce more predictable blood levels than gentamicin and suggest that the body distribution of netilmicin may differ from that of gentamicin.
13名男性受试者每千克体重接受1毫克庆大霉素或奈替米星,先肌肉注射,然后静脉注射。肌肉注射剂量后,血清中庆大霉素的浓度比奈替米星的浓度变化更大。静脉注射剂量后,奈替米星的分布阶段比庆大霉素快两倍。消除阶段的平均半衰期相似,但接受庆大霉素的受试者之间存在明显差异。奈替米星的血清清除率比庆大霉素更快,且不能归因于肾脏清除。数据表明,肌肉注射后,奈替米星可能比庆大霉素产生更可预测的血药浓度,并提示奈替米星的体内分布可能与庆大霉素不同。