Antivirals Flashcards
Inhibits viral RNA polymerase, DNA polymerase and HIV reverse transcriptase
Foscarnet
Activated by viral thymidine kinase to forms that inhibit viral DNA polymerase
Acyclovir
Acyclovir has no activity against strains of HSV with absent _
Thymidine kinase activity
For HSV infection in patients with AIDS
Foscarnet
Anti-HSV that inhibits fusuon between HSV envelope and plasma membranes
Docosanol
Uses of acyclovir
HSV 1 and 2
VZV
Binds to pyrophosphate binding site
Foscarnet
Causes nephrotoxicity (cystalluria)
Acyclovir
Inhibits viral DNA polymerase. Do not need thymidine kinase.
Ganciclovir
Cifodovir
Uses of ganciclovir
HSV 1 and 2
VZV
CMV
SE of cifoduvir
Nephrotoxicity
Causes leukopenia, trombocytopenia and neutropenia
Ganciclovir
For CMV retinitis
Cifodovir
Foscarnet
Causes electrolyte abnormality
Foscarnet (hypocalcemia)
Inhibit HIV reverse transcriptase after phosphorylation by cellular enzymes
Zidovudine (NRTI)
Inhibit HIV reverse transcriptase without requiing phosphorylation
Delavirdine (NNRTI)
For prevention of maternal-fetal HIV transmission
Zidovudine (NRTI)
Give to mother prior and during delivery
Give to baby after delivery
Causes lactic acidosis with hepatic steotosis
NRTI
NRTI that causes bone marrow suppression
Zidovudine
NRTI that causes hypersensitivity
Abacavir
NRTI that causes pancreatitis
Didanosine
NRTI that causes peripheral neuropathy
Stavudine
Zalcitabine
NNRTI that causes rash, inc AST/ALT
Delavirdine
Nevirapine
NNRTI with teratogenicity
Efavirenz
NNRTI with inc cholesterol and triglycerides
Etravirine
Noncompetitive inhibitors of reverse teanscriptase
NNRTI
Reverse transcriptase inhibitors that do not incorporate in chain
NNRTI
Inhibit movement of reverse transcriptase
NNRTI
Analogue of deoxynucleotides. Incorporate in growing DNA chain
NRTI
Protease inhibitor
Indinavir
Fusion inhibitor
Enfuvirtide
CCR5 receptor antagonist
Maraviroc
For influenza A
Amantadine
Inhibit viral processing
Indinavir
Enfuvirtide binds to _ subunit of viral envelop preventing fusion of viral and cellular membranes
Gp41
Causes fat redistribution, hyperglycemia, hyperlipidemia, insulin resistance
Protease inhibitors
Binds to gp41 subunit of viral envelop preventing fusion of viral and cellular membranes
Enfuvirtide
Prevents viral uncoating
Amantadine
Blocks viral attachment via transmembrane chemokine receptor CCR5
Maraviroc
No cross-resistance with other anti-HIV drugs
Enfuvirtide
Minimal cross-resistance with other anti-HIV drugs
Maraviroc
SE of indinavir
Hyperbilirubinemia and nephrolithiasis
SE of amprenavir
Rash
Causes cerebellar dysfunction
Amantadine
Inhibits guanosine triphosphate formation
Ribavirin
SE of atazanavir
Peripheral neuropathy
For influenza A and B
Oseltamivir
SE of saquinavir
GI distress and diarrhea
SE of oseltamivir
GI effects
SE of zanamivir
Bronchospasm in asthmatics
Presently the DOC for influenza
Oseltamivir
Uses of amantadine
Influenza A
Rubella
Blocks RNA-dependent RNA polymerases
Ribavirin
Causes livedo reticularis
Amantadine
Inhibits neuraminidase
Oseltamivir
Amantadine prevents uncoating by binding to _
M2 proton channels
Prevents capping of mRNA
Ribavirin
For hep B
Interferon a
Lamivudine
Use of lamivudine for HBV HCV coinfection can increase risk for _
Pancreatitis
Degrades viral RNA via activation of host cell RNAse
Interferon a
Use of interferon a
HBV
HCV
Kaposi sarcoma
Genital warts
Contraindications of interferon a
Autoimmune disease
Cardiac arrhythmia
Pregnancy
Uses of lamivudine
HBV
HIV
SE of adefovir
Lactic acidosis
Renal and hepatic toxicity
Use of ribavirin
HCV
RSV
Early administration decreases mortality in viral helorrhagic fevers
Ribavirin
SE of entecavir
Headache
Dizziness
Fatigue
Nausea