vidarabine

noun Pharmacology.

1. an antiviral substance, C10H15N5O4, produced by the bacterium Streptomyces antibioticus and used in immunosuppressed patients for the treatment of serious infections caused by herpesviruses.

n.

1. A purine nucleoside obtained from a species of Streptomyces and used in the treatment of herpes simplex infections.