title: In vitro activity of penciclovir against clinical isolates of acyclovir-resistant and foscarnet-resistant herpes simplex virus.
abstract: We tested 23 clinical isolates of acyclovir-susceptible, acyclovir-resistant, and foscarnet-resistant herpes simplex virus for susceptibility to penciclovir. Isolates showed cross-resistance to penciclovir and acyclovir, but penciclovir retained a relative activity against foscarnet-resistant isolates. Its clinical utility for the treatment of resistant herpes simplex virus infections remains to be studied.
authors.affiliation: Department of Medicine, University of California-San Francisco.
authors.forename: S
authors.initials: S
authors.lastname: Safrin
authors.forename: L
authors.initials: L
authors.lastname: Phan
mesh_terms: D000212:Acyclovir / Q000031:analogs & derivatives* / Q000494:pharmacology*; D000998:Antiviral Agents / Q000494:pharmacology*; D004259:DNA-Directed DNA Polymerase / Q000235:genetics; D004352:Drug Resistance, Microbial; D017245:Foscarnet / Q000494:pharmacology*; D006147:Guanine; D006207:Half-Life; D006801:Humans; D008826:Microbial Sensitivity Tests; D009154:Mutation / Q000235:genetics; D018139:Simplexvirus / Q000187:drug effects*; D013937:Thymidine Kinase / Q000235:genetics
chemical_list: D000998:Antiviral Agents; C053539:penciclovir; D017245:Foscarnet; D006147:Guanine; D013937:Thymidine Kinase; D004259:DNA-Directed DNA Polymerase; D000212:Acyclovir