Foscavir
Brand names,
Foscavir
Analogs
Foscavir
Brand Names Mixture
Foscavir
Chemical_Formula
CH3O5P
Foscavir
RX_link
http://www.rxlist.com/cgi/generic2/foscarnet.htm
Foscavir
fda sheet
Foscavir
msds (material safety sheet)
Foscavir
Synthesis Reference
Noren, Jan O.; et al., J.Med.Chem. 26(2) 264-270(1983)
Foscavir
Molecular Weight
126.005 g/mol
Foscavir
Melting Point
88.06 oC
Foscavir
H2O Solubility
Complete
Foscavir
State
Solid
Foscavir
LogP
No information avaliable
Foscavir
Dosage Forms
Injection
Foscavir
Indication
For the treatment of CMV retinitis in patients with acquired immunodeficiency syndrome (AIDS) and for treatment of acyclovir-resistant mucocutaneous HSV infections in immunocompromised patients.
Foscavir
Pharmacology
Foscarnet is an organic analogue of inorganic pyrophosphate that inhibits replication of herpes viruses in vitro including cytomegalovirus (CMV) and herpes simplex virus types 1 and 2 (HSV-1 and HSV-2). Foscarnet does not require activation (phosphorylation) by thymidine kinase or other kinases and therefore is active in vitro against HSV TK deficient mutants and CMV UL97 mutants. Thus, HSV strains resistant to acyclovir or CMV strains resistant to ganciclovir may be sensitive to foscarnet. However, acyclovir or ganciclovir resistant mutants with alterations in the viral DNA polymerase may be resistant to foscarnet and may not respond to therapy with foscarnet. The combination of foscarnet and ganciclovir has been shown to have enhanced activity in vitro.
Foscavir
Absorption
Poorly absorbed after oral administration (bioavailability from 12 to 22%).
Foscavir
side effects and Toxicity
Oral, rat LD50: >2,000 mg/kg. Signs of overdose include renal impairment.
Foscavir
Patient Information
Foscavir
Organisms Affected
Human herpes viruses