Drug

CrCl >50 mL/min

CrCl 10 - 50 mL/min

CrCl <10 mL/min

(ESRD not on HD)

HD dosing

 

Acyclovir

 

Dose on ideal body weight

 

ID approval: VASF(IV)

Herpes simplex infections

5 mg/kg/dose IV Q8h

 

HSV encephalitis/ Herpes zoster

10 mg/kg/dose IV Q8h

 

5 mg/kg/dose IV Q12 - 24h

 

 

 

10 mg/kg/dose IV Q12 - 24h

 

2.5 mg/kg IV Q24h

 

 

5 mg/kg IV

Q24h

Amoxicillin

500-1000 mg po TID

250-500mg po BID

250-500mg po QD

 

Amphotericin B

Dose on total body weight

0.6 - 1.0 mg/kg IV Q24h

    No Change                       No Change

Dosage reductions in renal disease are not necessary.  However, due to the nephrotoxic potential of the drug, reducing the dose or holding the drug in the setting of a rising serum creatinine may be warranted.

Amphotericin B Lipid

Preparations

 

ID approval: UCSF SFGH VASF

 

Dose on total body weight

Invasive fungal infections

3-5 mg/kg IV Q24h

 

Prophylaxis (heme-onc)

1 mg/kg IV Q24h

 

 No Change                       No Change

Dosage reductions in renal disease are not necessary.  However, due to the nephrotoxic potential of the drug, reducing the dose or holding the drug in the setting of a rising serum creatinine may be warranted.

 

Amikacin 

See Aminoglycoside Dosing & Monitoring section

 

Consultation with ID/ID pharmacy recommended before use. Dose is based on ideal body weight (IBW) except in obese patients or those under their ideal body weight. Use actual body weight if patient weight is less than IBW. Use adjusted body weight (ABW) in patients who are obese. Amikacin is generally used as a second-line aminoglycoside because of its increased cost and need to send out levels

 

 

≥ 60 mL/min

15-20 mg/kg/dose IV Q24h

The total daily dose of amikacin can be administered as a single daily dose in patients with normal renal function (CrCl ³ 60 mL/min).  Patients with decreased renal function or abnormal body composition should have their doses adjusted according to the recommendations adjacent.  Turnaround time for amikacin levels is usually 2-4 days.  Peak levels are not useful with this dosing regimen; trough levels are recommended and should be <5mg/L. 

40-60 mL/min  20-40 mL/min        5-7.5                5  

     mg/kg            mg/kg

    IV Q12h      IV Q12-24h

 

 

With traditional dosing of amikacin, peak (20-30 mg/L) and trough (<8mg/L) levels are recommended in patients anticipated to receive aminoglycosides for severe Gram (-) infection.  Those patients with CrCl <60 mL/min, obesity or increased fluid volume should be monitored with serum amikacin levels.

< 20 mL/min

5 mg/kg loading dose (Consult pharmacy for maintenance dose)

Ampicillin

Meningitis or endovascular infection

2 g IV Q4h

 

Uncomplicated Infection

2 g IV Q6h

 

 

2 g IV Q6h

1g IV Q6h

 

1g IV Q8h

1 g IV Q12h

Ampicillin/sulbactam

ID approval: VASF

 

1.5-3 g IV Q6h 1.5 g IV Q6-8h 1.5 g IV Q12h

Aztreonam

ID approval: SFGH VASF

 

2 g IV Q8h 2 g IV Q12h 1 g IV Q12h

Cefazolin

Gram Negative or Complicated Gram-Positive

2 g IV Q8h

 

 

Uncomplicated Gram-Positive

1-2g IV Q8h

 

 

 

1 - 2 g IV Q12h

 

 

1 g IV Q24h

Caspofungin

ID approval: UCSF SFGH VASF

 

For severe hepatic dysfunction give 70mg IV x1 then 35mg IV daily. 

LD=70 mg x1,                                 No Change                  No Change

then 50 mg Q24h

Increase maintenance dose to 70mg when given with phenytoin, rifampin, carbamezapine, dexamethasone, nevirapine, or efavirenz.

Cefepime

ID approval: VASF

> 60 mL/min

2 g IV Q12h

30-60 mL/min  10-30 mL/min

        2g IV           1 g IV

       Q24h            Q24h

0.5 g IV Q24h 

Febrile Neutropenia, Meningitis, Pseudomonas infections, Critically ill patients

2 g IV Q8h

      2 g IV          2 g IV    

     Q12h             Q24h

 1 g IV Q24h 

Ceftazidime

ID approval: VASF

2 g IV Q8h

2 g IV Q12 - 24h

0.5 g IV Q24h

Ceftriaxone

ID approval: VASF

1 g IV Q24h

 

No Change

 

No Change

 

Meningitis:

ID approval: SFGH

2 g IV Q12h

Endocarditis & Osteomyelitis:

ID approval: SFGH

2 g IV q24h

Cefuroxime

0.75 - 1.5 g IV Q8h

0.75 - 1.5 g IV Q12 - 24h

0.5 g IV Q24h

Ciprofloxacin

ID approval: SFGH(IV) VASF

.

400 mg IV Q12h

 

500 - 750 mg po Q12h

 

30-50 mL/min  10-30 mL/min

  No Change    200-400 mg IV

                                Q12h

 

  No Change    250-500 mg po

                                Q12h

200 mg IV Q12h

250 mg po Q12h

Pseudomonas infections

400mg IV q8h

750mg po Q12h

30-50 mL/min  10-30 mL/min

  No Change        200-400 mg IV

                                Q12h

 

  No Change        250-500 mg po

                                Q12h

200 mg IV Q12h

250 mg po Q12h

 

Clindamycin

ID approval: VASF

600 - 900 mg IV Q8h

300-450mg po TID-QID

No Change

No Change

Colistin

Dose on ideal body weight

5mg/kg IV x1 loading dose, then contact ID Pharmacy for maintenance dosing recommendations

Daptomycin

 

Dose on total body weight

 

Not effective for treatment of pneumonia

 

ID approval: UCSF SFGH VASF

 

 

6-10 mg/kg IV Q24h

Dose depends on indication & pathogen.

 

 

<30 ml/min

6-10 mg/kg IV Q48h

Doxycycline 100 mg po/IV Q 12h No Change No Change

Ethambutol

15-20 mg/kg po daily

<30 ml/min

15 - 25 mg/kg po three times per week

 

Ertapenem

ID approval: VASF

 

1g IV Q24h

<30 ml/min

500mg IV Q24h

Fluconazole

ID approval: SFGH(IV) VASF

 

Oral formulation is 100% bioavailable.  IV use should be restricted to patients unable to take oral medications.

 

100 - 400 mg po/IV Q24h

Oropharyngeal Candidiasis: 100mg daily

Esophageal Candidiasis: 200mg daily

Severe Infections : 400mg daily

 

50 - 200 mg po/IV Q24h

50 - 100 mg po/IV Q24h

Flucytosine (5FC)

 

Dose on ideal body weight

 

Steady-state serum 5-FC level measurements are difficult to obtain.  However, they may be useful in guiding dosing of 5-FC in anuria.  Bone marrow suppression has been associated with 2 hour post dose 5-FC peaks of >100 mg/L

 

25mg/kg

 po Q6h

25-50 mL/min    10-25mL/min

    25 mg/kg       25mg/kg   

     po Q12h        po Q24h

12.5 mg/kg

   po Q24h

Ganciclovir

ID approval: VASF

> 70mL/min       50-69mL/min

5mg/kg/dose  2.5mg/kg/dose    IV Q12h       IV Q12h

25-49 mL/min                   10-24 mL/min        

       2.5                             1.25  

     mg/kg                          mg/kg

    IV Q24h                        IV Q24h

Gentamicin 

See Aminoglycoside Dosing & Monitoring section

 

For underweight patients, use total body weight to calculate dose. For patients whose weight is 1-1.2 times their ideal body weight, use ideal body weight. For patients weighing >1.2 times ideal body weight, use adjusted body weight. Those patients with CrCl <60 mL/min, obesity or increased fluid volume should be monitored with serum gentamicin levels.

 

≥ 60 mL/min

7 mg/kg/dose IV Q24h

or

1.6 mg/kg/dose IV Q8h (total 5mg/kg/day)

The total daily dose of gentamicin can be administered as a single daily dose in patients with normal renal function (CrCl ³ 60 mL/min).  See Aminoglycoside Dosing & Monitoring section for monitoring recommendations. Divided dosing is recommended for patients with decreased renal function or abnormal body composition.

 

40-60 mL/min  20-40 mL/min       1.2-1.5          1.2-1.5  

     mg/kg            mg/kg

    IV Q12h      IV Q12-24h

 

With traditional dosing of gentamicin, peak (5-8 mg/L) and trough (<2mg/L) levels are recommended in patients anticipated to receive aminoglycosides for ³7 days for severe Gram (-) infection.  Lower doses (1mg/kg/dose Q8h) are suggested when aminoglycosides are used synergistically in Gram (+) infections. Goals for Gram (+) synergy dosing are peak 3-4mg/L and trough <1 mg/L.

< 20 mL/min

2 mg/kg loading dose (Consult pharmacy for maintenance dose)

Imipenem

ID approval: UCSF SFGH VASF

 

500 mg IV Q6-8h

 max 50 mg/kg/day

500 mg IV Q8h

< 20 mL/min

250-500 mg IV Q12h

Isoniazid

300 mg po daily

No Change

No Change

Levofloxacin

ID approval: SFGH(IV)

VASF (IV)

250 - 500 mg po/IV Q24h

LD=500 mg x1, then 250 mg po/IV Q24h

LD=500 mg x1, then 250 mg po/IV Q48h

 

Nosocomial pneumonia/ Pseudomonas infections

750mg po/IV Q24h

LD=750 mg x1, then 750 mg po/IV Q48h

LD=750 mg x1, then 500 mg po/IV Q48h

 

Linezolid

ID approval: UCSF SFGH VASF

 

600mg IV/po Q12h

No Change

No Change

Meropenem

ID approval: SFGH VASF

 

0.5-1 g IV Q8h

25-50 mL/min  10-25 mL/min

  0.5 - 1 g           0.5g

   IV Q12h         IV Q12h

 

  2g IV Q12h     1g IV Q12h

0.5 g IV Q24h

 

 

 

1 g IV Q24h

 

 

 

Meningitis, documented or suspected Pseudomonas infections, critical illness

 

2 g IV Q8h

Metronidazole

 

 

500 mg po/IV Q8h

500 mg po/IV Q8h

500 mg po/IV Q12h

Adjustment for ESRD only for patients not receiving hemodialysis.

Moxifloxacin

400mg po/IV Q24h

No Change

No Change

Nafcillin

Meningitis, osteomyelitis, or endovascular infection

2 g IV Q4h

 

Uncomplicated infection

1-2g IV Q6h

 

 

No Change

 

No Change

Penicillin G

Meningitis or endovascular infection

3 MU IV Q4h

 

Uncomplicated infection

2-3 MU IV Q4-6h

 

 

1 - 2 MU IV Q4 - 6h

 

1 MU IV Q6h

Piperacillin/Tazobactam (ZosynÒ)

3.375g  IV Q6h

3.375g IV Q6-8h

 

2.25g IV  Q8h

 

Documented/suspected Pseudomonas infections

4.5g IV Q6h for ClCr > 20 mL/min

Posaconazole

ID approval: UCSF SFGH VASF

Must be administered with a high-fat meal or nutritional shake (e.g. Ensure)

 

Treatment of invasive fungal infections

400 mg po Q12h or 200mg po Q6h

Neutropenia/GVHD prophylaixis

200mg po Q8h

 

No Change

No Change

Pyrazinamide

20 - 25 mg/kg po daily

<30 ml/min

25 - 35 mg/kg po three times per week

 

Quinupristin/dalfopristin (Synercid)

ID approval: UCSF SFGH VASF

 

Dose varies by indication.

Rifampin

ID approval: SFGH(IV)

Check for drug interactions

 

600 mg po daily

No Change

No Change

Prosthetic valve endocarditis

300 mg po Q8h

No Change

No Change

Prosthetic joint infections

450 mg po Q12h

No Change

No Change

Tigecycline

ID approval: UCSF SFGH VASF

Severe hepatic disease: 100mg IV x1, then 25mg IV q12h

 

100mg IV x1, then 50mg IV Q12h

No Change

No Change

Tobramycin

ID approval: SFGH

 

 See Gentamicin and Aminoglycoside Dosing Section

TMP/SMX

 

Dose on adjusted body weight

 

TMP/SMX is »90% bioavailable orally.  When switching to oral therapy, consider that a single-strength tablet has 80mg of TMP, a double-strength tablet 160mg of TMP.

 

Systemic GNR infections

10 mg TMP/kg/day IV

divided Q6 - 12h

 

Pneumocystis pneumonia

15 - 20 mg TMP/kg/day IV

divided Q6 - 12h

 

5 - 7.5 mg TMP/kg/day IV

divided Q12 - 24h

 

 

10 - 15 mg TMP/kg/day IV

divided Q12 - 24h

 

2.5 - 5.0 mg TMP/kg IV Q24h

 

 

5 - 10 mg TMP/kg IV Q24h

Voriconazole

ID approval: UCSF SFGH VASF

 

Check for drug interactions.

 

Dose on adjusted body weight.  In obese patients consider using a weight-based PO regimen (4mg/kg Q12h) using ABW, consult ID/ID-pharmacy for assistance.

 

PO should be used when possible, as oral bioavailability >95%.

 

May require dose adjustment in hepatic dysfunction. Consult ID pharmacy.

 

Oral

LD=400 mg po Q12h x 1 day,

then 200 mg po Q12h

 No Change

 No Change

IV dosing

LD=6 mg/kg/dose IV Q12h x 2 doses, then 4mg/kg/dose IV Q12h

The use of IV should be avoided if possible in patients with CrCl<50 mL/min due to the accumulation of the intravenous vehicle and is contraindicated in ESRD.

Vancomycin

ID approval: VASF

Uncomplicated infections

Serious infections

Round dose to 250mg, 500mg, 750mg, 1g, 1.25g, 1.5g, 1.75g, or 2g (maximum 2g/dose). 

For expanded information on dosing and monitoring, see Vancomycin Monitoring section.

>60 mL/min

 

Uncomplicated Infections

10 - 15 mg/kg  IV Q12h         

 

Serious Infections

Consider loading dose of 25mg/kg IV x1 followed by 15 - 20 mg/kg IV Q8-12h 

 

40-60mL/min

 

 

 

10 - 15mg/kg IV Q12-24h    

20-40 mL/min

 

 

 

5 - 10mg/kg 

IV Q24h

 10-20 mL/min

 

 

 

5 - 10 mg/kg

  IV Q24-48h

<10 mL/min

10 - 15 mg/kg IV

loading dose x1,  redose according  to serum levels

Trough levels should be obtained within 30 minutes before 4th dose or a new regimen or dosage change.  Vancomycin troughs are not recommended in patients in whom anticipated duration of therapy is less than 3 days.  For patients with uncomplicated infections, trough levels of 10-15 mcg/ml are recommended.  For patients with serious infections due to MRSA (central nervous system infections, endocarditis, ventilator-associated pneumonia, bacteremia, or osteomyelitis), trough levels of 15-20 mcg/ml are recommended.  ID CONSULT IS RECOMMENDED