Blood stream infection, bone and joint infections, gynecologic infections,intra-abdominal infection, health care-associated or high-risk community-acquired infection, intra-abdominal infections, pneumonia, skin and soft tissue infection, urinary tract infection (complicated and uncomplicated)
藥理
Antibiotic, Carbapenem
藥動學
Protein binding: Imipenem: ~20%; cilastatin: ~40% Metabolism: Imipenem is metabolized in the kidney by dehydropeptidase I; cilastatin prevents imipenem metabolism by this enzyme. Half-life elimination: IV: Both drugs: Prolonged with renal impairment: Neonates: Imipenem: 1.7 to 2.4 hours; Cilastatin: 3.9 to 6.3 hours (Freij 1985) Infants and Children: Imipenem: 1.2 hours (Blumer 1996) Adults: ~60 minutes Excretion: Both drugs: Urine (~70% as unchanged drug)
禁忌症
Hypersensitivity to imipenem/cilastatin or any component of the formulation Documentation of allergenic cross-reactivity for carbapenems, penicillins, and cephalosporins is limited. However, because of similarities in chemical structure and/or pharmacologic actions, the possibility of cross-sensitivity cannot be ruled out with certainty.
Traditional intermittent infusion method: IV 500 mg every 6 hours infused over 30 minutes or 1 g every 6 to 8 hours infused over 40 to 60 minutes.
Extended infusion method (off label): IV 500 mg to 1 g every 6 hours infused over 3 hours. May give a loading dose of 500 mg to 1 g over 30 minutes, especially when rapid attainment of therapeutic drug concentrations is desired (eg, sepsis).
小兒調整劑量
General dosing, susceptible infection; severe infections: IV 60-100 mg/kg/day divided every 6 hours; maximum 4,000 mg/day
Burkholderia pseudomallei (melioidosis): IV Initial 60 to 100 mg/kg/day divided every 6 to 8 hours for at least 10 days; maximum 4,000 mg/day; continue parenteral therapy until clinical improvement, then switch to oral therapy if tolerated and/or appropriate
Intra-abdominal infection, complicated: IV 60 to 100 mg/kg/day divided every 6 hours; maximum 500 mg
Non-tuberculosis mycobacterium, cystic fibrosis: IV 15 to 20 mg/kg/dose every 12 hours; maximum 1,000 mg/dose
Pulmonary exacerbation, cystic fibrosis: IV 100 mg/kg/day divided every 6 hours; maximum 4,000 mg/day; efficacy may be limited due to rapid development of resistance
腎功能調整劑量
Usual dosing regimen of 500 mg Q6H:
CrCl >90 mL/minute: No dosage adjustment necessary.
CrCl 60-90 mL/minute: 400 mg Q6H
CrCl 30-60 mL/minute: 300 mg Q6H
CrCl 15-30 mL/minute: 200 mg Q6H
CrCl <15 mL/minute: Do not administer unless hemodialysis is instituted within 48 hours.
Usual dosing regimen of 1,000 mg Q8H:
CrCl >90 mL/minute: No dosage adjustment necessary.
CrCl 60-90 mL/minute: 500 mg Q6H
CrCl 30-60 mL/minute: 500 mg Q8H
CrCl 15-30 mL/minute: 500 mg Q12H
CrCl <15 mL/minute: Do not administer unless hemodialysis is instituted within 48 hours.
Usual dosing regimen of 1,000 mg Q6H:
CrCl>90 mL/minute: No dosage adjustment necessary.
CrCl 60-90 mL/minute: 750 mg Q8H
CrCl 30-60 mL/minute: 500 mg Q6H
CrCl 15-30 mL/minute: 500 mg Q12H
CrCl <15 mL/minute: Do not administer imipenem/cilastatin unless hemodialysis is instituted within 48 hours.
End-stage renal disease (ESRD) on intermittent hemodialysis (IHD):
Use the dosing recommendation for patients with a CrCl 15-30 mL/minute; administer dose after dialysis session and at intervals timed from the end of that dialysis session or 250 to 500 mg Q12H.
Continuous renal replacement therapy (CRRT):
CVVH: Loading dose of 1 g followed by either 250 mg Q6H or 500 mgQ8H
CVVHD: Loading dose of 1 g followed by either 250 mg Q6H or 500 mg Q6-8H
CVVHDF: Loading dose of 1 g followed by either 250 mgQ6Hor 500 mg Q6H
肝功能調整劑量
There are no dosage adjustments provided in the manufacturer's labeling.