Ganciclovir: Difference between revisions

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==Pediatric Dosing==
==Pediatric Dosing==
*Off label use as pediatric medication
*CMV prophylaxis, solid organ transplant
**Induction: 5 mg/kg IV q12h x7-14 days
**Maintenance: 5 mg/kg IV q24h; Alt: 6 mg/kg IV 5x/wk
*CMV prophylaxis, HIV-assoc: 5 mg/kg IV q24h
*CMV infection
**Induction: 5 mg/kg IV q12h x14-21 days; Info: may incr. dose to 7.5 mg/kg IV q12h
**Maintenance: 5 mg/kg IV q24h; Alt: 6 mg/kg IV 5x/wk
*CMV infection, congenital (<1 mo): 6 mg/kg IV q12h x6wk


==Special Populations==
==Special Populations==

Revision as of 11:02, 20 January 2016

Administration

  • Type: Antiviral
  • Routes of Administration: IV, PO
  • Common Trade Names: Cytovene

Adult Dosing

  • CMV prophylaxis, solid organ transplant
    • IV route: 5 mg/kg IV q12h x7-14 days, then 5 mg/kg IV q24h or 6 mg/kg IV 5x/wk
    • PO route: 1000 mg PO tid, give w/ food
  • CMV prophylaxis, HIV-assoc.
    • IV route: 5 mg/kg IV 5-7x/wk; Info: not 1st-line agent
    • PO route: 1000 mg PO tid; Info: not 1st-line agent; give w/ food
  • CMV retinitis, immunocompromised pts
    • Induction tx: 5 mg/kg IV q12h x14-21 days; Info: not 1st-line agent
    • Maintenance tx, IV route: 5 mg/kg IV 5-7x/wk; Alt: 6 mg/kg IV 5x/wk; Info: not 1st-line agent
    • Maintenance tx, PO route: 1000 mg PO tid; Alt: 500 mg PO q3h while awake (6 doses/day); Info: not 1st-line agent; give w/ food

Pediatric Dosing

  • Off label use as pediatric medication
  • CMV prophylaxis, solid organ transplant
    • Induction: 5 mg/kg IV q12h x7-14 days
    • Maintenance: 5 mg/kg IV q24h; Alt: 6 mg/kg IV 5x/wk
  • CMV prophylaxis, HIV-assoc: 5 mg/kg IV q24h
  • CMV infection
    • Induction: 5 mg/kg IV q12h x14-21 days; Info: may incr. dose to 7.5 mg/kg IV q12h
    • Maintenance: 5 mg/kg IV q24h; Alt: 6 mg/kg IV 5x/wk
  • CMV infection, congenital (<1 mo): 6 mg/kg IV q12h x6wk

Special Populations

Renal Dosing

  • IV route, induction tx: CrCl 50-69: 2.5 mg/kg q12h; CrCl 25-49: 2.5 mg/kg q24h; CrCl 10-24: 1.25 mg/kg q24h; CrCl <10: 1.25 mg/kg 3x/wk; HD: give dose after dialysis, no supplement
  • IV route, maintenance tx: CrCl 50-69: 2.5 mg/kg q24h; CrCl 25-49: 1.25 mg/kg q24h; CrCl 10-24: 0.625 mg/kg q24h; CrCl <10: 0.625 mg/kg 3x/wk; HD: give dose after dialysis, no supplement
  • PO route: CrCl 50-69: 1500 mg/day divided qd-tid; CrCl 25-49: 1000 mg/day divided qd-bid; CrCl 10-24: 500 mg qd; CrCl <10: 500 mg 3x/wk; HD: give dose after dialysis, no supplement

Contraindications

  • Allergy to class/drug
  • hypersens. to acyclovir
  • ANC <500
  • Plt <25,000

Adverse Reactions

Serious

  • thrombocytopenia
  • neutropenia
  • pancytopenia
  • sepsis
  • nephrotoxicity
  • seizures
  • retinal detachment
  • HTN
  • pancreatitis

Common

  • diarrhea
  • fever
  • leukopenia
  • anorexia
  • vomiting

Pharmacology

  • Half-life: 3hr
  • Metabolism: CYP450
  • Excretion: Urine

Mechanism of Action

Inhibits DNA polymerase and incorporates into viral DNA

Comments

See Also

References

Epocrates, UpToDate