VALACYCLOVIR

Details

Stereochemistry	ABSOLUTE
Molecular Formula	C13H20N6O4
Molecular Weight	324.3357
Optical Activity	UNSPECIFIED
Defined Stereocenters	1 / 1
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

CC(C)[C@H](N)C(=O)OCCOCN1C=NC2=C1N=C(N)NC2=O

InChI

InChIKey=HDOVUKNUBWVHOX-QMMMGPOBSA-N

InChI=1S/C13H20N6O4/c1-7(2)8(14)12(21)23-4-3-22-6-19-5-16-9-10(19)17-13(15)18-11(9)20/h5,7-8H,3-4,6,14H2,1-2H3,(H3,15,17,18,20)/t8-/m0/s1

HIDE SMILES / InChI

Molecular Formula	C13H20N6O4
Molecular Weight	324.3357
Charge	0
Count

Stereochemistry	ABSOLUTE
Additional Stereochemistry	No
Defined Stereocenters	1 / 1
E/Z Centers	0
Optical Activity	UNSPECIFIED

Description
Sources: https://www.ncbi.nlm.nih.gov/pubmed/3680558 | https://www.ncbi.nlm.nih.gov/pubmed/3790156 | https://www.ncbi.nlm.nih.gov/pubmed/2159990 | Leoung, G.S. (1989) Opportunistic Infections in Patients with the Acquired Immunodeficiency Syndrome, page 207, retrieved from: https://books.google.ru/books?id=As56gGv7E_YChttp://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020487s016lbl.pdfhttps://www.accessdata.fda.gov/drugsatfda_docs/label/2005/018828s030,020089s019,019909s020lbl.pdf
Curator's Comment: Description was created based on several sources, including https://www.ncbi.nlm.nih.gov/pubmed/6313598 | https://www.ncbi.nlm.nih.gov/pubmed/2828440 | https://www.ncbi.nlm.nih.gov/pubmed/202961

Acyclovir is a synthetic antiviral nucleoside analogue. A screening program for antiviral drugs begun at Burroughs Wellcome in the 1960s resulted in the discovery of acyclovir in 1974. Preclinical investigation brought the drug to clinical trials in 1977 and the first form of the drug (topical) was available to physicians in 1982. Activity of acyclovir is greatest against herpes 1 and herpes 2, less against varicella zoster, still less against Epstein-Barr, and very little against cytomegalovirus. Acyclovir is an antiviral agent only after it is phosphorylated in infected cells by a viral-induced thymidine kinase. Acyclovir monophosphate is phosphorylated to diphosphate and triphosphate forms by cellular enzymes in the infected host cell where the drug is concentrated. Acyclovir triphosphate inactivates viral deoxyribonucleic acid polymerase.

CNS Activity

Originator

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Thymidine kinase 17 Target ID: CHEMBL1820 Sources: http://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020487s016lbl.pdf	Inhibitor 8297
Human herpesvirus 1 DNA polymerase 19 Target ID: CHEMBL1872 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2005/018828s030,020089s019,019909s020lbl.pdf	Inhibitor 8297		0.08 µM [Ki]

Conditions

Condition	Modality	Highest Phase	Product
Herpes zoster infections 15 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2004/18603slr027_zovirax_lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2005/018828s030,020089s019,019909s020lbl.pdf	Primary	Approved 8429	ZOVIRAX Approved Use Oral ZOVIRAX® (acyclovir) is indicated for the treatment: Herpes Zoster Infections: ZOVIRAX is indicated for the acute treatment of herpes zoster (shingles). Genital Herpes: ZOVIRAX is indicated for the treatment of initial episodes and the management of recurrent episodes of genital herpes. Chickenpox: ZOVIRAX is indicated for the treatment of chickenpox (varicella). Injectable ZOVIRAX® (acyclovir) is indicated for the treatment: Herpes Simplex Infections in Immunocompromised Patients: ZOVIRAX for Injection is indicated for the treatment of initial and recurrent mucosal and cutaneous herpes simplex (HSV-1 and HSV-2) in immunocompromised patients. Initial Episodes of Herpes Genitalis: ZOVIRAX for Injection is indicated for the treatment of severe initial clinical episodes of herpes genitalis in immunocompetent patients. Herpes Simplex Encephalitis: ZOVIRAX for Injection is indicated for the treatment of herpessimplex encephalitis. Neonatal Herpes Simplex Virus Infection: ZOVIRAX for Injection is indicated for the treatmentof neonatal herpes infections. Varicella-Zoster Infections in Immunocompromised Patients: ZOVIRAX for Injection is indicated for the treatment of varicella-zoster (shingles) infections in immunocompromised patients. Launch Date 1982
Herpes simplex infection 28 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2004/18603slr027_zovirax_lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2005/018828s030,020089s019,019909s020lbl.pdf	Primary	Approved 8429	ZOVIRAX Approved Use Oral ZOVIRAX® (acyclovir) is indicated for the treatment: Herpes Zoster Infections: ZOVIRAX is indicated for the acute treatment of herpes zoster (shingles). Genital Herpes: ZOVIRAX is indicated for the treatment of initial episodes and the management of recurrent episodes of genital herpes. Chickenpox: ZOVIRAX is indicated for the treatment of chickenpox (varicella). Injectable ZOVIRAX® (acyclovir) is indicated for the treatment: Herpes Simplex Infections in Immunocompromised Patients: ZOVIRAX for Injection is indicated for the treatment of initial and recurrent mucosal and cutaneous herpes simplex (HSV-1 and HSV-2) in immunocompromised patients. Initial Episodes of Herpes Genitalis: ZOVIRAX for Injection is indicated for the treatment of severe initial clinical episodes of herpes genitalis in immunocompetent patients. Herpes Simplex Encephalitis: ZOVIRAX for Injection is indicated for the treatment of herpessimplex encephalitis. Neonatal Herpes Simplex Virus Infection: ZOVIRAX for Injection is indicated for the treatmentof neonatal herpes infections. Varicella-Zoster Infections in Immunocompromised Patients: ZOVIRAX for Injection is indicated for the treatment of varicella-zoster (shingles) infections in immunocompromised patients. Launch Date 1982
Cold sores 11 Sources: http://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020487s016lbl.pdf	Primary	Approved 8429	VALTREX Approved Use INDICATIONS AND USAGE. VALTREX is a nucleoside analogue DNA polymerase inhibitor indicated for: Adult Patients Cold Sores (Herpes Labialis), Genital Herpes, Treatment in immunocompetent patients (initial or recurrent episode), Suppression in immunocompetent or HIV-infected patients, Reduction of transmission, Herpes Zoster. Pediatric Patients Cold Sores (Herpes Labialis), Chickenpox Limitations of Use. The efficacy and safety of VALTREX have not been established in immunocompromised patients other than for the suppression of genital herpes in HIV-infected patients. Launch Date 2004
Genital herpes 13 Sources: http://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020487s016lbl.pdf	Primary	Approved 8429	VALTREX Approved Use INDICATIONS AND USAGE. VALTREX is a nucleoside analogue DNA polymerase inhibitor indicated for: Adult Patients Cold Sores (Herpes Labialis), Genital Herpes, Treatment in immunocompetent patients (initial or recurrent episode), Suppression in immunocompetent or HIV-infected patients, Reduction of transmission, Herpes Zoster. Pediatric Patients Cold Sores (Herpes Labialis), Chickenpox Limitations of Use. The efficacy and safety of VALTREX have not been established in immunocompromised patients other than for the suppression of genital herpes in HIV-infected patients. Launch Date 2004
Herpes zoster infections 15 Sources: http://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020487s016lbl.pdf	Primary	Approved 8429	VALTRE Approved Use INDICATIONS AND USAGE. VALTREX is a nucleoside analogue DNA polymerase inhibitor indicated for: Adult Patients Cold Sores (Herpes Labialis), Genital Herpes, Treatment in immunocompetent patients (initial or recurrent episode), Suppression in immunocompetent or HIV-infected patients, Reduction of transmission, Herpes Zoster. Pediatric Patients Cold Sores (Herpes Labialis), Chickenpox Limitations of Use. The efficacy and safety of VALTREX have not been established in immunocompromised patients other than for the suppression of genital herpes in HIV-infected patients. Launch Date 2004

C_max

Value	Dose	Co-administered	Analyte	Population
599.2 ng/mL EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/17692728	400 mg single, oral dose: 400 mg route of administration: Oral experiment type: SINGLE co-administered:		ACYCLOVIR plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: FASTED

AUC

Value	Dose	Co-administered	Analyte	Population
3015.7 ng × h/mL EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/17692728	400 mg single, oral dose: 400 mg route of administration: Oral experiment type: SINGLE co-administered:		ACYCLOVIR plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: FASTED

T_1/2

Value	Dose	Co-administered	Analyte	Population
3.9 h EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/17692728	400 mg single, oral dose: 400 mg route of administration: Oral experiment type: SINGLE co-administered:		ACYCLOVIR plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: FASTED

F_unbound

Value	Dose	Co-administered	Analyte	Population
79% EXPERIMENT https://www.accessdata.fda.gov/drugsatfda_docs/label/2005/018828s030,020089s019,019909s020lbl.pdf			ACYCLOVIR plasma	Homo sapiens population: UNKNOWN age: UNKNOWN sex: UNKNOWN food status: UNKNOWN

Overview

CYP3A4	CYP2C9	CYP2D6	hERG

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer
OAT1 599 OAT2 145 OAT3 642 OAT4 146 OCT1 512 OCT2 647 OATP1B1 788 OATP1B3 706 OATP2B1 123 CYP1A2 1524	OAT1 326 OAT2 115 OAT3 339 OAT4 78 OCT1 327 OCT2 355 MRP2 205 MATE1 135 MATE2 96 BCRP 561

Drug as perpetrator

Target	Modality	Activity
OAT2 147	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	no
OAT4 146	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	no
OATP1B1 803	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/22541068/	no
OATP1B3 715	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/22541068/	no
OATP2B1 126	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/22541068/	no
OCT2 648	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	no
CYP1A2 1692	inhibitor 3277 Sources: https://www.fda.gov/drugs/drug-interactions-labeling/drug-development-and-drug-interactions-table-substrates-inhibitors-and-inducers	weak
OAT1 603	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	yes
OAT3 644	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	yes
OCT1 543	inhibitor 3277 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	yes

Drug as victim

Target	Modality	Activity
OAT2 115	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	no
OAT3 339	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	no
OAT4 78	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	no
OCT2 355	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	no
BCRP 561	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/21859328/	yes
MATE1 135	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/17509534/	yes
MATE2 96	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/17509534/	yes
MRP2 205	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/31341258/	yes
OAT1 326	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/\|https://pubmed.ncbi.nlm.nih.gov/31341258/	yes
OCT1 327	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/11861798/	yes

Sourcing

Vendor/Aggregator	ID	URL
ChEBI	CHEBI:2453	https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:2453
ChemicalBook	CB7126677	https://www.chemicalbook.com/ChemicalProductProperty_EN_CB7126677
MolPort	MolPort-000-768-994	https://www.molport.com/shop/molecule-link/MolPort-000-768-994
MolPort	MolPort-001-889-834	https://www.molport.com/shop/molecule-link/MolPort-001-889-834
MolPort	MolPort-003-940-063	https://www.molport.com/shop/molecule-link/MolPort-003-940-063
Selleck Chemicals	Acyclovir(Aciclovir)	http://www.selleckchem.com/products/Acyclovir(Aciclovir).html
ZINC	ZINC000001530555	http://zinc15.docking.org/substances/ZINC000001530555
eMolecules	29702921	https://www.emolecules.com/cgi-bin/more?vid=29702921
eMolecules	768732	https://www.emolecules.com/cgi-bin/more?vid=768732
eMolecules	901331	https://www.emolecules.com/cgi-bin/more?vid=901331

PubMed

Title	Date	PubMed
Selection of an oral prodrug (BRL 42810; famciclovir) for the antiherpesvirus agent BRL 39123 [9-(4-hydroxy-3-hydroxymethylbut-l-yl)guanine; penciclovir].	1989 Oct	2589844
Hepatic and renal effects of azidothymidine and acyclovir on pregnant rats.	2000	11214960
Guanosine analogues as anti-herpesvirus agents.	2000 Oct-Dec	11200257
Interventions for herpes simplex virus epithelial keratitis.	2001	11279774
Management of neonatal herpes simplex virus infection.	2001	11269641
Recent advances in imaging endogenous or transferred gene expression utilizing radionuclide technologies in living subjects: applications to breast cancer.	2001	11250742
Acyclovir treatment in 2 patients with benign trigeminal sensory neuropathy.	2001 Apr	11289180
Herpes simplex virus-1 thymidine kinase mutants created by semi-random sequence mutagenesis improve prodrug-mediated tumor cell killing.	2001 Apr 1	11306482
Practice parameter: Steroids, acyclovir, and surgery for Bell's palsy (an evidence-based review): report of the Quality Standards Subcommittee of the American Academy of Neurology.	2001 Apr 10	11294918
Postherpetic neuralgia. Pathogenesis of postherpetic neuralgia should be determined.	2001 Apr 7	11290628
[Photoallergy to Zovirax cream].	2001 Feb	11275608
Painful skin erosions and fever in an infant. Eczema herpeticum.	2001 Feb	11272689
Pretransplant varicella vaccination is cost-effective in pediatric renal transplantation.	2001 Feb	11260488
Anti-herpesvirus activity of (1'S,2'R)-9-[[1',2'-bis(hydroxymethyl)-cycloprop-1'-yl]methyl] x guanine (A-5021) in vitro and in vivo.	2001 Feb	11248363
Genetic risks of antiviral nucleoside analogues--a survey.	2001 Feb	11248359
Viral etiologies of encephalitis in Thai children.	2001 Feb	11224846
Eczema herpeticum in parthenium dermatitis.	2001 Feb	11205385
Persistent verrucous varicella as the initial manifestation of HIV infection.	2001 Feb	11174425
Meta-analysis of prophylaxis of CMV disease in solid organ transplantation: is Ganciclovir a superior agent to Acyclovir?	2001 Feb-Mar	11267547
Prophylactic antiviral therapy in CMV high-risk liver transplant recipients.	2001 Feb-Mar	11267523
Antiviral drugs can inhibit lymphocyte apoptosis induced by cytomegalovirus antigens.	2001 Feb-Mar	11267517
Recurrent herpes labialis: efficacy of topical therapy with penciclovir compared with acyclovir (aciclovir).	2001 Jan	11354919
Aerobic bacterial and fungal infections in peripheral blood stem cell transplants.	2001 Jan	11281391
[Valaciclovir in the treatment of initial infection by genital herpes virus: comparative study].	2001 Jan	11256241
Epstein-Barr virus-related lymphoproliferative disease complicating childhood acute lymphoblastic leukemia: no recurrence after unrelated donor bone marrow transplantation.	2001 Jan	11244444
Substantially improved in vivo radiosensitization of rat glioma with mutant HSV-TK and acyclovir.	2001 Jan	11219491
Recurrent lumbosacral herpes simplex in the bedridden hospitalized patient.	2001 Jan	11204597
8-[18F]Fluoropenciclovir: an improved reporter probe for imaging HSV1-tk reporter gene expression in vivo using PET.	2001 Jan	11197989
Reporter genes and imagene.	2001 Jan	11197957
Aseptic meningitis related to valacyclovir.	2001 Jan	11197578
Herpetic folliculitis and syringitis simulating acne excoriée.	2001 Jan	11176676
Management of the neonate whose mother received suppressive acyclovir therapy during late pregnancy.	2001 Jan	11176581
Isolation and analysis of an aciclovir-resistant murine cytomegalovirus mutant.	2001 Jan	11166858
Successful outcome with a "quintuple approach" of posttransplant lymphoproliferative disorder.	2001 Jan 15	11211194
Virological, clinical, and ophthalmologic features of cytomegalovirus retinitis after hematopoietic stem cell transplantation.	2001 Jan 15	11170910
Neonatal herpes simplex and incontinentia pigmenti.	2001 Jan-Feb	11207986
Crossing diagnostic borders: herpes encephalitis complicated by cultural and language barriers.	2001 Jan-Feb	11206692
Progressive outer retinal necrosis in a patient with nephrotic syndrome.	2001 Jan-Feb	11195746
[Highly active antiviral and immunosuppressive combination therapy with acyclovir and mycophenolate mofetil following keratoplasty in patients with herpetic eye disease].	2001 Mar	11322055
[Neurologic toxicity caused by zelitrex (valaciclovir) in 3 patients with renal failure. Is overdose associated with improvement of product bioavailability improvement?].	2001 Mar	11270274
A 35-year-old man with recurrent aseptic meningitis.	2001 Mar	11263848
Predictors of recurrent herpes simplex virus keratitis. Herpetic Eye Disease Study Group.	2001 Mar	11248812
Investigation of aciclovir-resistant herpes simplex virus I infection in a bone marrow transplantation unit: genotyping shows that different strains are involved.	2001 Mar	11247677
Predictive modeling and heterogeneity of baseline risk in meta-analysis of individual patient data.	2001 Mar	11223322
Ocular tolerability and in vivo bioavailability of poly(ethylene glycol) (PEG)-coated polyethyl-2-cyanoacrylate nanosphere-encapsulated acyclovir.	2001 Mar	11170022
Long-term high-dose acyclovir and AIDS-related non-Hodgkins lymphoma.	2001 Mar 15	11247725
The management of varicella-zoster virus exposure and infection in pregnancy and the newborn period. Australasian Subgroup in Paediatric Infectious Diseases of the Australasian Society for Infectious Diseases.	2001 Mar 19	11297117
Neurotoxicity of valacyclovir in peritoneal dialysis: a pharmacokinetic study.	2001 Mar-Apr	11359026
Coexpression of guanylate kinase with thymidine kinase enhances prodrug cell killing in vitro and suppresses vascular smooth muscle cell proliferation in vivo.	2001 May	11356082
Chemical stability, enzymatic hydrolysis, and nasal uptake of amino acid ester prodrugs of acyclovir.	2001 May	11288106

Patents

Sample Use Guides

In Vivo Use Guide

250 mg three times a day for 14 days

Route of Administration: Oral

In Vitro Use Guide

In uptake studies using valacyclovir, the extraction solution (water/methanol, 50:50) was added to the Caco-2 cells after the uptake period. After standing for 1 h at room temperature, the solutions were centrifuged and the supernatants were filtered. The filtrate was analyzed by highperformance liquid chromatography (HPLC). Valacyclovir showed a marked inhibitory effect (K=440 +/- 29mkM) on [14C]glycylsarcosine uptake via the apical PEPT1.

Substance Class	Chemical Created by `admin` on `Sat Dec 16 16:44:02 GMT 2023` Edited by `admin` on `Sat Dec 16 16:44:02 GMT 2023`
Record UNII	MZ1IW7Q79D
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

VALACYCLOVIR

Common Name

English

Valaciclovir [WHO-DD]

Common Name

English

L-VALINE 2-((2-AMINO-1,6-DIHYDRO-6-OXO-9H-PURIN-9-YL)METHOXY)ETHYL ESTER

Systematic Name

English

VALACICLOVIR

Official Name

English

VALACYCLOVIR [MI]

Common Name

English

VALACV

Common Name

English

valaciclovir [INN]

Common Name

English

L-VALINE, 2-((2-AMINO-1,6-DIHYDRO-6-OXO-9H-PURIN-9-YL)METHOXY)ETHYL ESTER

Common Name

English

L-VALINE, ESTER WITH 9-((2-HYDROXYETHOXY)METHYL)GUANINE

Common Name

English

VALACYCLOVIR [VANDF]

Common Name

English

L-VALINE ESTER WITH 9-((2-HYDROXYETHOXY)METHYL)GUANINE

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C281