Ganciclovir

Ganciclovir is a potent antiviral medication structurally related to acyclovir. It works by inhibiting cytomegalovirus (CMV) DNA polymerase, halting viral replication. Due to risks of severe hematological toxicities like granulocytopenia and thrombocytopenia, its systemic use is restricted to serious CMV infections under close medical supervision.

Dosage by Body Weight

Adult standard intravenous dose for CMV treatment is 5 mg/kg every 12 hours for 14 to 21 days (induction), followed by 5 mg/kg once daily (maintenance). Ophthalmic gel (0.15%) is applied 5 times daily for active keratitis. Pediatric dosing is based on body weight, typically 6 mg/kg every 12 hours for congenital CMV, requiring precise calculation and renal adjustment.

  1. Body Weight
    Below 5 kg
    Dose
    6 mg/kg (e.g., 12 to 24 mg)
    Frequency
    Every 12 hours
    Tracking Notes
    Standard congenital CMV pediatric dosing. Requires strict monitoring of renal function and absolute neutrophil count. Infuse slowly over 1 hour.
  2. Body Weight
    5-7 kg
    Dose
    30 to 42 mg
    Frequency
    Every 12 hours
    Tracking Notes
    Based on 6 mg/kg. Ensure optimal hydration before and during infusion to minimize renal toxicity.
  3. Body Weight
    8-10 kg
    Dose
    48 to 60 mg
    Frequency
    Every 12 hours
    Tracking Notes
    Based on 6 mg/kg. Complete blood counts (CBC) must be checked frequently due to potential bone marrow suppression.
  4. Body Weight
    11-15 kg
    Dose
    66 to 90 mg
    Frequency
    Every 12 hours
    Tracking Notes
    Based on 6 mg/kg. Dose reduction is mandatory if creatinine clearance drops.
  5. Body Weight
    16-20 kg
    Dose
    96 to 120 mg
    Frequency
    Every 12 hours
    Tracking Notes
    Based on 6 mg/kg. Pediatric therapy must be initiated and guided by an infectious disease specialist.

Formulation

Intravenous InjectionOphthalmic Gel

Purpose

Treatment of cytomegalovirus (CMV) retinitis in immunocompromised patients and prevention of CMV disease in transplant recipients.

Generic Name

Ganciclovir

Branded Drug Names

Ganciclovir is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:

Scheduled Drug

Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.