Antivirals Flashcards
Enfurvitide
Fusion inhibitor of CD4 cells
Treats influenza A/B
Oseltamivir, zanamivir
Emtricitabine
NRTI
BM suppression
NRTI
Lamivudine
NRTI
Treats CMV
Gancyclovir
CMV retinitis in ICH, acyclovir resistant HSV (after foscarnet): nephrotoxicity: inhibits viral DNA Polymerase; does not require phosphorylation
Cidofovir
Major toxicity: lipodystrophy
Protease inhibitors
Nevirapine
NNRTI: reduced maternal-fetal transmission
How does neuramidase inhibitors work?
prevents viral release
Indinavir
protease inhibitor -navir
Interferon (PEG)
Alpha: chronic hepB/C, Kaposi’s sarcoma; beta: MS gamma: NADPH Oxidase deficiency SE: neutropenia glycoproteins from human leukocytes block viral RNA/DNA synthesis (induce nuclease that degrade viral mRNA
Amantadine
Influenza A (neurologic SE: interferes with viral protein M2 required for uncoating)
CMV (especially ICH): viral kinase phosphorylates guanosine analog inhibiting viral DNA polymerase HEMATOLOGIC SE (neutropenia/leucopenia)
Ganciclovir
HepC, RSV, hemorrhagic fever: SE anemia and teratogen; inhibits synthesis of G nt by inhibiting IMP dehydrogenase
Ribavirin