Fluoroquinolone類抗生素 Treatment of urinary tract infections, chronic bronchitis, community-acquired pneumonia (including penicillin-resistant Streptococcus pneumoniae), skin and skin structure infections, and maxillary sinusitis.
藥理
Levofloxavin is the active L-isomer of ofloxacin that allow higher dosages of the active form to be given with fewer side effects.
藥動學
Bioavailability: 99%, Oral and intravenous routes of administration are considered interchangeable; Distribution: high concentrations are achieved in prostate, lung, and gynecological tissues, sinus, saliva; primarily excreted from urine as unchanged drug (87%); Elimination half-life: 6-8 hrs.
禁忌症
Hypersensitivity to levofloxacin, other fluoroquinolones
懷孕分類
C
哺乳分類
Excretion in breast milk unknown/not recommended
副作用
Nausea, headache, diarrhea, insomnia, dizziness, and constipation.
劑量和給藥方法
Adults: IV for chronic bronchitis-500 mg QD for at least 7 days. IV for pneumonia,sinusitis, and skin infections-750 mg QD for 5 days ( 7-14 days, if nosocomial pneumonia).
IV for UTI-250 mg QD for 3-10 days OR 750 mg QD for 5 days. IV for prostatitis-500 mg QD for 28 days.
Safety and efficacy in children under 18 years of age have not been established (oral/IV).
小兒調整劑量
腎功能調整劑量
After an initial dose of 750mg QD,
Clcr 20~49 ml/min: 750 mg Q48 H; Clcr up to 19 ml/min (including HD/CAPD): 500 mg Q48 H.
After an initial dose of 500mg QD,
Clcr 20~49 ml/min: 250mg QD; Clcr up to 19 ml/min (including HD/CAPD): 250mg Q48H.
After an initial dose of 250mg QD, Clcr 10~19 ml/min: 250mg Q48H