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famciclovir

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noun fam·ci·clo·vir \ˌfam-ˈsī-klō-ˌvir\

Medical Definition of famciclovir

: a precursor C₁₄H₁₉N₅O₄ of the antiviral agent penciclovir that after oral administration is converted to penciclovir by cellular kinases and that is used especially to treat shingles and herpes genitalis—see famvir

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