Home/Terminology/Antivirals/Famciclovir

How to Pronounce Famciclovir (Famvir)

Q: What does Famciclovir mean?

Famciclovir is an oral antiviral prodrug that is rapidly converted to penciclovir after absorption. It is used to treat herpes zoster (shingles), recurrent genital herpes, and recurrent orolabial herpes in immunocompetent adults.

fam-SYE-kloe-vir

IPA: /fæm.ˈsaɪ.kloʊ.vɪr/

Brand name: Famvir

fam SYE kloe vir

How do you pronounce Famciclovir?

Famciclovir is pronounced “fam-SYE-kloe-vir”. It has 4 syllables: fam – sye – kloe – vir. The stress falls on the second syllable, “sye”. The “-ciclovir” suffix follows the same pattern as acyclovir and valacyclovir.

How many syllables are in Famciclovir?

Famciclovir has 4 syllables: fam – sye – kloe – vir.

What does Famciclovir mean?

Famciclovir is an oral antiviral prodrug that is rapidly deacetylated and oxidized to penciclovir after absorption. It is used to treat herpes zoster (shingles), recurrent genital herpes (HSV-2), and recurrent orolabial herpes (cold sores) in immunocompetent adults. Penciclovir inhibits viral DNA polymerase after phosphorylation by viral thymidine kinase.

Word Parts

fam- famciclovir prodrug prefix (FAMily of penciclovir)

-ciclovir antiviral nucleoside analog class suffix

Common Mispronunciations

Often said “fam-SIK-lo-vir” — the correct stress pattern is fam-SYE-kloe-vir, matching acyclovir’s “-SYE-kloe-vir” ending.

Where You’ll Encounter This

Famciclovir is used in primary care, infectious disease, and dermatology for herpes zoster treatment (shingles), recurrent genital HSV suppression, and orolabial herpes. It offers dosing convenience (500 mg TID for 7 days for zoster) compared to acyclovir’s 5×/day regimen. Contraindicated in severe renal impairment without dose adjustment.