腎臟,排除體內不必要物質的一個重要器官,當腎臟功能變差後,服用的藥物可能會有排除降低的可能,過多的藥物會蓄積在體內,造成不良反應產生的風險大為提高,因此,當腎功能不佳時,服用某些藥物時,有必要調整其劑量。
腎功能變差了,藥物要怎麼調整呢?
閒來把院內抗生素的腎功能不佳需調整的劑量與頻次整理一下
參考的是uptodate的lexi camp database、熱病、臨床使用抗生素手冊-張進祿著、藥品仿單
腎功能不良(含透析患者)之藥物劑量調整
商品名 |
學名 |
劑量調整 |
Phel |
Cephalexin (1g) |
CrCl >30 mL/minute: 500 mg-1 g every 6 hours CrCl 10-29: 500 mg-1 g every 8-12 hours CrCl <10: 500 mg-1 g every 24 hours
Hemodialysis: 500 mg-1 g every 24 hours; moderately dialyzable (20% to 50%); give dose after dialysis session (以透析完時間點為基準,1/2-1 vial QD) (非只有透析當天給) |
Cefa |
Cephazolin (1g) |
CrCl 35-54 mL/minute: Administer full dose in intervals of ≥8 hours CrCl 11-34 mL/minute: Administer 50% of usual dose every 12 hours CrCl ≤10 mL/minute: Administer 50% of usual dose every 18-24 hours
Intermittent hemodialysis (IHD) (administer after hemodialysis on dialysis days): Dialyzable (20% to 50%): 500 mg to 1 g QD or 1-2 g every 48-72 hours or 15-20 mg/kg (maximum dose: 2 g) after dialysis 3 times weekly or 2 g after dialysis if next dialysis expected in 48 hours or 3 g after dialysis if next dialysis is expected in 72 hours |
Lofadine |
Cephradine (1g) |
Lack information |
Gibicef |
Cefuroxime (1g) |
CrCl >20 mL/minute: No dosage adjustment necessary. CrCl 10-20 mL/minute: Administer every 12 hours. CrCl <10 mL/minute: Administer every 24 hours
(以透析完時間點為基準,1-1.5 vial QD) (非只有透析當天給) |
Cetalin |
Ceftriaxone (1g) |
No dosage adjustment is generally necessary in renal impairment; Note: Concurrent renal and hepatic dysfunction: Maximum dose: ≤2 g daily Poorly dialyzed; no supplemental dose or dosage adjustment necessary |
Cefulin |
Ceftazidime (1g) |
CrCl > 50 mL/minute: 2g every 8 hours CrCl 30 to 49 mL/minute: 2 g every 12 hours CrCl 10 to 29 mL/minute: 2 g every 24 hours CrCl <10 mL/minute: 1 g every 24 hours
Intermittent hemodialysis (IHD) (administer after hemodialysis on dialysis days): Dialyzable (50% to 100%): 1 g every 24 hours (以透析完時間點為基準,1 vial QD) (非只有透析當天給) |
Anbicyn |
Amoxicillin/Clavulanate (1.2g) |
Dose is based on the amoxicillin component CrCl <30 mL/minute: Do not use 875 mg tablet or extended release tablets. CrCl 10-29 mL/minute: 1.2 g every 12 hours or initial 1.2 g then 0.6 g Q12H CrCl <10 mL/minute: 1.2 g every 24 hours or initial 1.2 g Q24H
Hemodialysis: Moderately dialyzable (20% to 50%) 1.2 g every 24 hours; administer dose during and after dialysis. (以透析完時間點為基準,1 vial QD) (非只有透析當天給) |
Asullina |
Ampicillin/Sulbactam (1.5g) |
Dose is based on the complete Ansullina CrCl 10 to 29 mL/minute/1.73 m2: 1.5-3 g every 12 hours CrCl <10 mL/minute/1.73 m2: 1.5-3 g every 24 hours
Intermittent hemodialysis (IHD) (administer after hemodialysis on dialysis days): 1.5 to 3 g every 24 hours (以透析完時間點為基準,1 vial QD) (非只有透析當天給) |
Betamycin |
Piperacillin/Tazobactam (2.25g; 4.5g) |
CrCl 20-40 mL/minute: 2.25 g Q6H or 4.5 g Q8H (3.375 g Q6H for nosocomial pneumonia) CrCl <20 mL/minute: 2.25 g Q8H or 4.5 g Q12H (2.25 g Q6H for nosocomial pneumonia)
Intermittent hemodialysis (IHD)/peritoneal dialysis (PD): 2.25-4.5 g Q12H (2.25 g every 8 hours for nosocomial pneumonia) |
Vanco |
Vancomycin (500mg) |
CrCl >50 mL/minute: Start with 15-20 mg/kg/dose (usual: 750-1500 mg) every 8-12 hours CrCl 20-49 mL/minute: Start with 15-20 mg/kg/dose (usual: 750-1500 mg) every 24 hours CrCl <20 mL/minute: Will need longer intervals; determine by serum concentration monitoring
Note: In the critically-ill patient with renal insufficiency, the initial loading dose (25-30 mg/kg) should not be reduced. However, subsequent dosage adjustments should be made based on renal function and trough serum concentrations.
Intermittent hemodialysis (IHD) (administer after hemodialysis on dialysis days): Following loading dose of 15-25 mg/kg, give either 500-1000 mg or 5-10 mg/kg after each dialysis session
or CrCl >65: 1g or 15mg/kg every 12 hours CrCl 35-64: 1g or 15mg/kg every 24 hours CrCl 21-34: 1g or 15mg/kg every 2 days CrCl 10-20: 1g or 15mg/kg every 3 days CrCl <10: 1g or 15mg/kg every 4-7 days HD/PD: 1g or 15mg/kg every 4-7 days
Redosing based on pre-HD concentrations: <10 mg/L: Administer 1000 mg after HD 10-25 mg/L: Administer 500-750 mg after HD >25 mg/L: Hold vancomycin
Redosing based on post-HD concentrations: <10-15 mg/L: Administer 500-1000 mg |
Levox |
Levofloxacin (5mg/ml, 100ml) |
Normal renal function dosing of 500 mg daily: CrCl 20-49 mL/minute: Administer 500 mg initial dose, followed by 250 mg every 24 hours CrCl 10-19 mL/minute: Administer 500 mg initial dose, followed by 250 mg every 48 hours Hemodialysis/chronic ambulatory peritoneal dialysis (CAPD): Administer 500 mg initial dose, followed by 250 mg every 48 hours; supplemental doses are not required following either hemodialysis or CAPD
Normal renal function dosing of 750 mg daily: CrCl 20-49 mL/minute: Administer 750 mg every 48 hours. CrCl 10-19 mL/minute: Administer 750 mg initial dose, followed by 500 mg every 48 hours. Hemodialysis/chronic ambulatory peritoneal dialysis (CAPD): Administer 750 mg initial dose, followed by 500 mg every 48 hours; supplemental doses are not required following either hemodialysis or CAPD.
|
Tienam |
Imipenem/Cilastatin (500mg/500mg) |
Dose base on Imipenem Patients with a CrCl ≤5 mL/minute/1.73 m2 should not receive imipenem/cilastatin unless hemodialysis is instituted within 48 hours. Patients weighing <30 kg with impaired renal function should not receive imipenem/cilastatin
Intermittent hemodialysis (IHD) (administer after hemodialysis on dialysis days): Use the dosing recommendation for patients with a CrCl 6-20 mL/minute; administer dose after dialysis session and every 12 hours thereafter or 250-500 mg every 12 hours
Severe infections: I.V.: Fully-susceptible organisms: 500 mg every 6 hours Moderately-susceptible organisms: 1 g every 6-8 hours Maximum daily dose should not exceed 50 mg/kg or 4 g/day, whichever is lower Reduced I.V. dosage regimen based on creatinine clearance and/or body weight: See table. |
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