Vidarabin
Brand names,
Vidarabin
Analogs
Vidarabin
Brand Names Mixture
Vidarabin
Chemical_Formula
C10H15N5O5
Vidarabin
RX_link
http://www.rxlist.com/cgi/generic3/vidarabine.htm
Vidarabin
fda sheet
Vidarabin
msds (material safety sheet)
Vidarabin
Synthesis Reference
No information avaliable
Vidarabin
Molecular Weight
285.257 g/mol
Vidarabin
Melting Point
No information avaliable
Vidarabin
H2O Solubility
No information avaliable
Vidarabin
State
Solid
Vidarabin
LogP
-2.115
Vidarabin
Dosage Forms
No information avaliable
Vidarabin
Indication
For treatment of chickenpox - varicella, herpes zoster and herpes simplex
Vidarabin
Pharmacology
Vidarabine is a synthetic purine nucleoside analogue with 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 Vidarabine is highly selective due to its affinity for the enzyme thymidine kinase (TK) encoded by HSV and VZV. This viral enzyme converts Vidarabine into Vidarabine 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, Vidarabine triphosphate stops replication of herpes viral DNA. When used as a substrate for viral DNA polymerase, Vidarabine triphosphate competitively inhibits dATP leading to the formation of 'faulty' DNA. This is where Vidarabine triphosphate is incorporated into the DNA strand replacing many of the adenosine bases. This results in the prevention of DNA synthesis, as phosphodiester bridges can longer to be built, destabilizing the strand.
Vidarabin
Absorption
No information avaliable
Vidarabin
side effects and Toxicity
No information avaliable
Vidarabin
Patient Information
No information avaliable
Vidarabin
Organisms Affected
Human Herpes Viruses