ANTIVIRAL AGENTSA Flashcards
mimics guanine
acyclovir
ganciclovir
idoxuridine
trifluridine
Herpes is a ____ virus
DNA
common mechanism of action of drugs for DNA viruses
inhibition of DNA replication
viruses with ANTIVIRAL AGENTS
Herpes
Hepatitis B & C
HIV
Influenza
- Well tolerated and causes few side effects
- may cause renal or central nervous system toxicity
- Genital herpes, chicken pox, shingles
acyclovir
Achieves a high plasma concentration when taken orally and is used in herpes
valacyclovir
- Side effect – leukopenia and thrombocytopenia as a result of bone marrow suppression
- Cytomegalovirus retinitis
Ganciclovir
- Side effect – kidney damage
- CMV retinitis and severe HPV
cidofovir
- Toxic to be used systematically
- Keratitis caused by herpes virus infection
idoxuridine
trifluridine
- Renal impairment, hypo- or hypercalcemia, hypo- or hyperphosphatemia, hypokalemia, and hypomagnesemia
- Retinitis caused by herpes virus infection
foscarnet
drugs are formulated with the ability to resemble the ____ and make them nonfunctional
nucleoside
blocks the 1st step in DNA repli
acyclovir
penciclovir
ganciclovir
blocks the 2nd step in DNA repli
trifluridine
cidoflovir
blocks the 3rd step in DNA repli
foscarnet
NUCLEOSIDE REVERSE TRANCRIPTASE INHIBITORS
Didanosine
Abacavir
Zidovudine
Zalcitabine
Lamivudine
Emtricitabine
Tenofovir
Stavudine
DAZZLETS