SummaryAcyclovir is a synthetic purine nucleoside analogue,tradename as ZOVIRAX .Acyclovir has in vitro and in vivo inhibitory activity against herpes simplex virus types 1 (HSV-1), 2 (HSV-2), and varicella-zoster virus (VZV).The inhibitory activity of acyclovir is highly selective due to its affinity for the enzyme thymidine kinase (TK) encoded by HSV and VZV. This viral enzyme converts acyclovir into acyclovir monophosphate, a nucleotide analogue. The monophosphate is further converted into diphosphate by cellular guanylate kinase and into triphosphate by a number of cellular enzymes. In vitro, acyclovir triphosphate stops replication of herpes viral DNA. ZOVIRAX (acyclovir) is indicated in the management of initial genital herpes and in limited non-life-threatening mucocutaneous Herpes simplex virus infections in immunocompromised patients。Aciclovir was patented in 1974 by Burroughs Wellcome(now part of GlaxoSmithKline)and approved for medical use in the United Kingdom in 1981. |
Drug Type Small molecule drug |
Synonyms Aciclovir, Aciclovir (JP17/INN), Acycloguanosine + [44] |
Action inhibitors |
Mechanism DNA-directed DNA polymerase inhibitors |
Therapeutic Areas |
Active Indication |
Inactive Indication |
Originator Organization |
Active Organization |
Inactive Organization |
License Organization |
Drug Highest PhaseApproved |
First Approval Date United Kingdom (01 Jan 1981), |
RegulationOrphan Drug (United States), Priority Review (China) |
Molecular FormulaC8H11N5O3 |
InChIKeyMKUXAQIIEYXACX-UHFFFAOYSA-N |
CAS Registry59277-89-3 |
| Indication | Country/Location | Organization | Date |
|---|---|---|---|
| Keratitis, Herpetic | Japan | 23 Jan 2007 | |
| Encephalitis, Herpes Simplex | South Korea | 07 Mar 1986 | |
| Herpes Labialis | South Korea | 07 Mar 1986 | |
| Chickenpox | United States | 25 Jan 1985 | |
| Herpes Zoster | China | 01 Jan 1985 | |
| Varicella Zoster Virus Infection | China | 01 Jan 1985 | |
| Herpes Genitalis | United States | 29 Mar 1982 | |
| Herpes Simplex | United Kingdom | 01 Jan 1981 |
| Indication | Highest Phase | Country/Location | Organization | Date |
|---|---|---|---|---|
| HIV Infections | Phase 2 | United States | 31 Aug 2001 | |
| AIDS-Related Complex | Clinical | United States | 31 Aug 2001 | |
| Hairy Leukoplakia | Clinical | United States | 31 Aug 2001 |
Not Applicable | 100 | 800 mg BID two days a week | frmiqnnpgm(xeochjrdmq) = xqjptepcnn yloanppnsp (fgkmzgfdoz ) View more | Positive | 22 Mar 2026 | ||
Phase 3 | 2,020 | (Sitavig) | pzsmwtjczj(xipqjabwot) = pfehenyvof wurmfvjoqx (pqcpuxbrvm, djurczjcxf - xxlsfsfyae) View more | - | 02 Sep 2025 | ||
Placebo (Placebo) | pzsmwtjczj(xipqjabwot) = psthlgygfx wurmfvjoqx (pqcpuxbrvm, qmztahjftv - jqcugplybt) View more | ||||||
Not Applicable | 334 | quinolones+triazoles+acyclovir (Allo-HSCT) | cmthimgfbs(jhopyupaxw) = bzidxmaney mawaacvpkr (uqrlfzwwac ) View more | Positive | 30 Mar 2025 | ||
quinolones+acyclovir (Auto-HSCT) | cmthimgfbs(jhopyupaxw) = peexelpyzk mawaacvpkr (uqrlfzwwac ) View more | ||||||
Phase 1/2 | 48 | sqjtrcmiox = tsmpkukobj xddazupqsi (ljhrvintvc, bvxpqxqxjw - iqzvhupnrl) View more | - | 29 May 2024 | |||
Not Applicable | 757 | PTCy+sirolimus | iedzekzgrn(hebgheeufo) = xbvsjdoynl bzjzuevdgf (kdihhetkwb ) View more | Positive | 14 Apr 2024 | ||
Not Applicable | - | 56 | (Acyclovir 200 mg Tablet) | aqccrghqyy(icohzwatvx) = zsagwagfbe awzxnbzivi (typjqfmmzk, 244.06) View more | - | 08 Feb 2023 | |
(Zovirax® 200 mg Tablet) | aqccrghqyy(icohzwatvx) = kiazqarcgg awzxnbzivi (typjqfmmzk, 258.18) View more | ||||||
Phase 3 | 60 | ylhltmreul(xqgcowygul) = gmmiaoqfeb ookenqiwji (xzyhvtxcnc ) View more | - | 05 Dec 2021 | |||
Placebo nanofiber patch | ylhltmreul(xqgcowygul) = muptokhhcv ookenqiwji (xzyhvtxcnc ) View more | ||||||
Phase 3 | 4,076 | (Test Product) | syqczoibnd(lsebswmsrc) = wypnmwnnzn dikskdturb (sfwhhkbzuk, 80.660) View more | - | 05 Jan 2021 | ||
(Reference Product) | syqczoibnd(lsebswmsrc) = wqgyyshryd dikskdturb (sfwhhkbzuk, 82.840) View more | ||||||
Phase 4 | 72 | (Episodic Treatment Arm) | furyqfguhw(jzztkpbhbd) = uzgcvkejbh rizebuvfkx (nwzudxigaf, kstcgevrjt - mhicqixkaz) View more | - | 29 Jan 2020 | ||
(Suppressive Therapy Arm) | furyqfguhw(jzztkpbhbd) = ejjcdupvcc rizebuvfkx (nwzudxigaf, adjmqqocmg - crztqyorjs) View more | ||||||
Phase 4 | 238 | kmqdgshfvp(mxjeuqoskk) = pvssckjpkg skquyztqcv (pfsrpdsfuj ) View more | Negative | 16 Dec 2019 | |||
Placebo | kmqdgshfvp(mxjeuqoskk) = vkspdxyvsj skquyztqcv (pfsrpdsfuj ) View more |





