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Medicines famciclovirQuestion & answer

famciclovir · Medicine question

How does probenecid affect the active metabolite of famciclovir?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Probenecid may increase plasma concentrations of penciclovir, the active metabolite of famciclovir, by competing for elimination.

Sources for this answer

Famciclovir 250 mg film-coated tabletsViatris (formerly Mylan or Upjohn) · emc · SmPC §4.5 Interaction with other medicinal products · Version 1Document updated 4 September 2018

Sources checked 8 November 2026

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Why can raloxifene affect the efficacy of famciclovir?How does famciclovir inhibit viral replication?How much sodium is in each famciclovir 250 mg film-coated tablet in the Viatris (formerly Mylan or Upjohn) product?Is famciclovir contraindicated in people allergic to penciclovir?What do clinical data show about famciclovir's effect on male fertility?Which gastrointestinal side effects have been reported with famciclovir?

famciclovir

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