Phosphonoformic Acid
Brand names,
Phosphonoformic Acid
Analogs
Phosphonoformic Acid
Brand Names Mixture
Phosphonoformic Acid
Chemical_Formula
CH3O5P
Phosphonoformic Acid
RX_link
http://www.rxlist.com/cgi/generic2/foscarnet.htm
Phosphonoformic Acid
fda sheet
Phosphonoformic Acid
msds (material safety sheet)
Phosphonoformic Acid
Synthesis Reference
Noren, Jan O.; et al., J.Med.Chem. 26(2) 264-270(1983)
Phosphonoformic Acid
Molecular Weight
126.005 g/mol
Phosphonoformic Acid
Melting Point
88.06 oC
Phosphonoformic Acid
H2O Solubility
Complete
Phosphonoformic Acid
State
Solid
Phosphonoformic Acid
LogP
No information avaliable
Phosphonoformic Acid
Dosage Forms
Injection
Phosphonoformic Acid
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.
Phosphonoformic Acid
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.
Phosphonoformic Acid
Absorption
Poorly absorbed after oral administration (bioavailability from 12 to 22%).
Phosphonoformic Acid
side effects and Toxicity
Oral, rat LD50: >2,000 mg/kg. Signs of overdose include renal impairment.
Phosphonoformic Acid
Patient Information
Phosphonoformic Acid
Organisms Affected
Human herpes viruses