Antiviral Medications

Zovirax® (acyclovir), Cytovene® (ganciclovir), and Valcyte® (valganciclovir)


Used to prevent or treat viral (herpes) infections often found in the mouth or genital area.


Zovirax is available in capsules of 200mg or 800mg. Available in liquid formulation at a 200mg/5cc concentration.

Adult dosage is typically 200 to 800mg taken 3 to 4 times per day for 3 months following transplantation.

Pediatric dosage is based on body weight.


If you miss a dose of any of these medications, take it as soon as you can. Do not double dose.

Common Side Effects

Side effects are rare but can include lowered white blood cell count.