Acyclovir in hepatitis B antigen—positive chronic liver disease: inhibition of viral replication and transient renal impairment with iv bolus administration

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Abstract
Six patients with hepatitis B virus (HBV) related chronic liver disease were treated with acyclovir, 5–15 mg/kg 8 hourly, given as an iv bolus or iv infusion over 1 h for up to 7 days. Two patients treated with 10 and 15 mg/kg 8 hourly showed a decrease in HBV-DNA polymerase and HBV-DNA when mean trough acyclovir plasma concentrations of 5.0±0.6 and 13.2±3.0 μM were attained. Inhibition of viral replication was not seen in patients treated with lower doses. Transient renal impairment was seen in two patients who received high dosage by the iv bolus mode of administration. This complication may be prevented by a high oral fluid intake or iv infusion of the drug over 1 h. Further study with acyclovir 15 mg/kg 8-hourly given as an iv infusion for longer periods is warranted.