BACKGROUND Acyclovir is acyclic guanosine derivative. Benzylpenicillin (PCG) is a β-lactam antibiotic. The purpose of this study was to investigate the pharmacokinetic drug-drug interaction (DDI) between PCG and acyclovir. METHOD When acyclovir and PCG were co-administered, plasma concentration of acyclovir, urinary excretion of acyclovir in vivo, uptake of acyclovir in kidney slices and upta...

The prevalence and molecular characteristics of isolates from 173 immunocompetent patients with herpetic keratitis (HK) who were infected with acyclovir (ACV)-resistant (ACV(R)) corneal herpes simplex virus (HSV)-1 was determined. Isolates from 11 (6.4%) of the patients were ACV(R), and 9 of these 11 patients were refractory to therapy with ACV; the ACV(R) isolates from 5 and 1 of these 9 patie...

Although the virus yield reduction assay is a powerful technique for evaluating the efficacy of antiviral compounds, it is not routinely utilized due to its labor-intensive nature. This procedure was modified, developed, thereby reducing greatly the time and effort required to perform yield reduction assays. Monolayer cultures of mammalian cells were grown in 96-well microtiter tissue culture p...

Optimal acyclovir dosing under continuous renal replacement therapy (CRRT) in neonates is unknown. We monitored serum acyclovir levels and herpes simplex virus 1 (HSV-1) DNA levels in a neonate with disseminated HSV-1 infection and renal failure undergoing CRRT. A full-term, 5-day-old female presented with a 2-day history of lethargy and fever. She developed fulminant hepatitis and was diagnose...

PURPOSE The most common external ocular viral infections are caused by several human adenovirus (HAdV) types. Ganciclovir has been reported to inhibit cytomegalovirus, herpes simplex virus types 1 and 2, varicella zoster virus, and Epstein-Barr virus. Ganciclovir ophthalmic gel, 0.15% (Virgan®) is commercially available for cytomegalovirus or herpes virus keratitis. However its inhibitory activ...

Acyclovir is an effective antiviral agent in herpes simplex and varicella-zoster infections treatments. However, it may cause serious side effects. This case study reports a patient who developed both acute tubular necrosis neurotoxicity induced by intravenous acyclovir recovered promptly after hemodialysis. Caution needed monitoring patients receiving acyclovir. Eliminating with early diagnosi...

The purpose of the present study was to examine the emergence of ganciclovir-resistant virus in the contralateral eyes of patients who received treatment for cytomegalovirus retinitis with either a ganciclovir implant plus oral placebo, a ganciclovir implant plus oral ganciclovir, or intravenous (iv) ganciclovir. Viral DNA was amplified from vitreous specimens and was assayed for UL97 and UL54 ...

Background: Acyclovir, a specific and selective inhibitor of replication of herpesviridae family, has well documented efficacy for speedy rash healing and decreasing pain of herpes zoster. Limited oral bioavailability of acyclovir requires frequent dosing. Valacyclovir is rapidly and almost completely converted to acyclovir in vivo and gives three to fivefold increase in acyclovir bioavailabili...

Background: Acyclovir (9-(2-hydroxyethoxymethyl) guanine) (ACV) is an acyclic nucleoside analogue that has shown a potent antiviral activity, and it is known to inhibit the replication of herpesviruses including herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2), varicella- zoster virus (VZV), and Epstein-Barr virus (EBV) in cell cultures and in animals. ACV is khown to be toxic to gonads,t...