ANTIVIRAL AGENTSA Flashcards

1
Q

mimics guanine

A

acyclovir
ganciclovir
idoxuridine
trifluridine

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2
Q

Herpes is a ____ virus

A

DNA

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3
Q

common mechanism of action of drugs for DNA viruses

A

inhibition of DNA replication

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4
Q

viruses with ANTIVIRAL AGENTS

A

Herpes
Hepatitis B & C
HIV
Influenza

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5
Q
  • Well tolerated and causes few side effects
  • may cause renal or central nervous system toxicity
  • Genital herpes, chicken pox, shingles
A

acyclovir

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6
Q

Achieves a high plasma concentration when taken orally and is used in herpes

A

valacyclovir

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7
Q
  • Side effect – leukopenia and thrombocytopenia as a result of bone marrow suppression
  • Cytomegalovirus retinitis
A

Ganciclovir

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8
Q
  • Side effect – kidney damage
  • CMV retinitis and severe HPV
A

cidofovir

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9
Q
  • Toxic to be used systematically
  • Keratitis caused by herpes virus infection
A

idoxuridine
trifluridine

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10
Q
  • Renal impairment, hypo- or hypercalcemia, hypo- or hyperphosphatemia, hypokalemia, and hypomagnesemia
  • Retinitis caused by herpes virus infection
A

foscarnet

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11
Q

drugs are formulated with the ability to resemble the ____ and make them nonfunctional

A

nucleoside

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12
Q

blocks the 1st step in DNA repli

A

acyclovir
penciclovir
ganciclovir

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13
Q

blocks the 2nd step in DNA repli

A

trifluridine
cidoflovir

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14
Q

blocks the 3rd step in DNA repli

A

foscarnet

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15
Q

NUCLEOSIDE REVERSE TRANCRIPTASE INHIBITORS

A

Didanosine
Abacavir
Zidovudine
Zalcitabine
Lamivudine
Emtricitabine
Tenofovir
Stavudine

DAZZLETS

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16
Q

NON NUCLEOSIDE REVERSE TRASNCRIPTASE inhibitors

A

all with VIR in the middle
Delavirdine
Efavirenz
Etravirine
Nevirapine

17
Q

PROTEASE inhibitors

A

all with VIR at the end
Atazanavir
Darunavir
Fosamprenavir
Indinavir
Lopinavir
Ritonavir

18
Q

ENTRY INHIBITORS

A

Enfuvirtide
Maraviroc

19
Q

INTEGRASE INHIBITORS

A

Raltegravir

20
Q

Protease inhibitors are usually administered by ____

A

combination with NRT

21
Q
  • exemption for protease inhibitors
  • administered in combination with another protese inhibitor
A

ritonavir

22
Q

side effect of protease inhibitors

A

fat accumulation at the back of the neck

23
Q

protease inhibitor side effect presents ____ appearance

A

buffalo hump

24
Q

reduce viral load and elevate CD4+ levels

A

Lami + Zido

25
Q

for Hepa B chronic infections

A

Lami

26
Q
  • for patients who developed resistance against other NRT inhibitors
  • also used for first time treatments
A

Tenofovir

27
Q

ANTI-HEPATITIS

first line drugs

A

Adefovir (Hespera)
Enetecavir (Baraclude)

28
Q

ANTI-HEPATITIS

  • nucleotide analogue of AMP
  • inhibits DNA polymerase
A

adefovir (hepsera)

29
Q

ANTI-HEPATITIS

guanosine analogue that inhibits DNA polymerase

A

enetecavir (baraclude)

30
Q

ANTI-HEPATITIS

NRT inhibitors

A

Lami & Teno

31
Q

ANTI-HEPATITIS

interferon alfa that is used because of longer duration of action

A

pregylated interferon alfa

32
Q

ANTI-HEPATITIS

mimics guanine

A

ribavirin

33
Q

ANTI-INFLUENZA

no longer used because of resistamnce

A

amantadine

34
Q

ANTI-INFLUENZA

blocks viral uncoating

A

amantadine
rimantadine

35
Q

ANTI-INFLUENZA

neuraminidase inhibitors

A

oseltamivir (tamiflu)
zanamivir (relenza)