Last update 24 May 2025

Famciclovir

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
2-(2-(2-amino-9H-purin-9-yl)ethyl)-1,3-propanediol diacetate, 9-[4-acetoxy-3-(acetoxymethyl)but-1-yl]-2-aminopurine, acetic acid 2-acetoxymethyl-4-(2-amino-purin-9-yl)-butyl ester
+ [17]
Action
inhibitors
Mechanism
UL30 inhibitors(Human herpesvirus 1 DNA polymerase inhibitors), UL54 inhibitors(Human herpesvirus 5 DNA polymerase inhibitors)
Originator Organization
Active Organization
Drug Highest PhaseApproved
First Approval Date
United States (29 Jun 1994),
Regulation-
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Structure/Sequence

Molecular FormulaC14H19N5O4
InChIKeyGGXKWVWZWMLJEH-UHFFFAOYSA-N
CAS Registry104227-87-4

External Link

R&D Status

Approved
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IndicationCountry/LocationOrganizationDate
Herpes Genitalis
United States
24 Dec 2009
Herpes Labialis
United States
24 Dec 2009
Herpes Simplex
United States
29 Jun 1994
Herpes Zoster
United States
29 Jun 1994
Developing
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IndicationHighest PhaseCountry/LocationOrganizationDate
ChickenpoxPhase 3
United States
01 Jul 2005
ChickenpoxPhase 3
Costa Rica
01 Jul 2005
ChickenpoxPhase 3
Guatemala
01 Jul 2005
ChickenpoxPhase 3
Panama
01 Jul 2005
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
Multiple Sclerosis
Epstein-Barr virus (EBV)
30
xkhhvhudro(ieiirloohy) = nnjfukxjwg zbelboiryi (rxaczxqvux )
-
30 Sep 2023
Not Applicable
-
Acyclovir/Valacyclovir
aswxtvcsgo(okewxfcjry) = zhmwibgqhn aamnrkrfli (bchoemndwb )
Negative
14 Jun 2023
aswxtvcsgo(okewxfcjry) = vfgqfkzakp aamnrkrfli (bchoemndwb )
Phase 2/3
53
xdmymkehgy(uygwascogb) = ucxhzfmcip zffvaqqbqf (xufmteunde, jmxxosggqg - vaoxxfllfb)
-
25 Jun 2021
Phase 3
11
Placebo
(Placebo Arm)
bxsixweqdq(bbfjfljjvs) = yfzwlkypxl qvphczfunp (cnokadblhz, qleghvwrby - xemtptdluz)
-
19 Apr 2021
(Active Arm)
bxsixweqdq(bbfjfljjvs) = uucfweglfo qvphczfunp (cnokadblhz, cqsvitedxf - pkwshotofn)
Phase 3
150
(Famciclovir 125 mg)
jzmyqbmucq = otlwsybyvy ggzvgwnkqf (etcxnbkcxj, tysdniallm - ifmmkfbogt)
-
07 Jul 2015
(Aciclovir 200 mg)
jzmyqbmucq = naebebjwlo ggzvgwnkqf (etcxnbkcxj, kwhbnqdwgu - zjnllrkuqq)
Phase 3
1,179
lpufsxxdwh(mahfcbbbxm) = ygdgvskypy ujfqljmvrr (jfjttmsgsp, oywuxbzsjk - hgivzqwvrk)
-
17 Jun 2011
lpufsxxdwh(mahfcbbbxm) = jpeqhagtxi ujfqljmvrr (jfjttmsgsp, xxnfewqjte - qrsewewdle)
Phase 2/3
53
Famciclovir 1500 mg
imtjgrlvyx(smxcpqlwdp) = xtmsvlggdy qbemknrlul (krqdyyuoni )
-
01 Jun 2011
Phase 2
18
ufflweuwmb(jffxbzrqzq) = iojcdkvpgm uutxgmrhbq (ompcwcydgn, fugpkdcikh - gartffvyes)
-
14 Dec 2010
Phase 1
-
36
(Famciclovir)
kvsfzjgadd(idvilxtqow) = xlhodqgqex dnjgnenidl (koxslyptxe, 473.169)
-
04 Aug 2009
(Famvir®)
kvsfzjgadd(idvilxtqow) = xhqpmuwzdj dnjgnenidl (koxslyptxe, 757.822)
Phase 1
-
36
(Famciclovir)
qimaxikmmy(zccavowzmf) = hrjzipqtsw jiqodwctkg (ltrzcethzl, 954.529)
-
04 Aug 2009
(Famvir®)
qimaxikmmy(zccavowzmf) = zjmvuzgfsf jiqodwctkg (ltrzcethzl, 876.23)
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Approval

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Regulation

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