BW 348U87 is an inhibitor for ribonucleotide reductase, which exhibits synergistic effect with Acyclovir , potentiate the antiviral activity of Acyclovir against herpes simplex virus (HSV) in atmic nude mouse model.
References:
[1]. Spector T, et al., Inactivators of herpes simplex virus ribonucleotide reductase: hematological profiles and in vivo potentiation of the antiviral activity of acyclovir. Antimicrob Agents Chemother. 1992 May;36(5):934-7.