- The following procedures will be carried out after dosing: pharmacokinetic blood samples (total blood collected each day is 11cc) for determination of plasma levels of ganciclovir 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, and 12 hours post-dose (time windows of ± 5 minutes are allowed for all samples up to 4 hours and ± 20 minutes for samples between 6 and 12 hours)