Shared Flashcard Set

Details

antivirals
antivirals
34
Medical
Professional
04/27/2011

Additional Medical Flashcards

 


 

Cards

Term
No longer used for influenza A
Definition
Amantadine and Rimantadine.

b/c you hate amanze
Term
covers influenza A and B
Definition
zanamavir (oral inhalation)
oseltamivir (capsule) also known as tamiflu
Term
mechanism of zanamavir and oseltamivir
Definition
neuramindase inhibitor, inhibit removal of salic acid
Term
influenza A and B are types of....

rna/ or dna viruses?
Definition
RNA viruses
Term
dna ivruses include?
Definition
HSv, VSV, cmV,
Term
chain terminator acts on DNA polymerase
Definition
acyclovir, if it terminates a chain, cant CYCL-e
Term
what is acyclovir good for?
Definition
HSV1>HSV2> zoster
Term
problem w/ acyclovir
Definition
renal toxicity
Term
route of administration for acyclovir,
Definition
IV or oral
Term
what are prodrugs that get higher levles than acyclovir?
Definition
valacyclovir (valtrex) and famciclovir. both pass through GI and liver to increase levels
Term
good tx for CMV
Definition
ganciclovir/valganciclovir
Term
CMV + HSV and VSV can all use...??
Definition
foscarnet.

NEt catches everythhing for DNA viruses.
Term
T/F ganciclovir/valganciclovir as well as foscarnet inibit viral DNA poly
Definition
T.

gang/val inhhibit triphosphatase of viral DNA polym.
-both are VERY TOXIC.
Term
Reverse transcription inhibitors function
Definition
block DNA poly from reverse transcription. via action triphosphatase
Term
what is recommended for herpes and zoster
Definition
acyc and foscarnet
Term
what is recommended for CMV
Definition
gang/valga,foscarnet
Term
2 types of reverse transcriptase inhibitors
Definition
1. nucleoside RT inhibitors
2. non-nucleoside RT inhibitors
Term
common NRTI and mechanism
Definition
AZT or zidovudine
-Phosphorylated by host enzymes
Tri-P inhibits viral DNA polymerase
Acts as chain terminator
Resistance is common with continued use
Oral or IV, gets into CSF, short half-life
Can diminish perinatal transmission
Term
T/F resistance isnt common in NRTI
Definition
false is common, but very common and rapid in NNRTIS
Term
T/F NNRTI's develop resistance rapidly
Definition
T. cant be used alone.
Term
T/F NNRTI's can prevent perinatal transmission
Definition
T
Term
examples of NNRTI's
Definition
nevirapine, delgvirdine, efavirenz, etravirine. (Never, ever even deliver nucleotides)
Term
mechanisms of protease inhibitors
Definition
block virion maturation
Term
T/F protease inhibitors are not as strong as RTI's
Definition
False, they are more POTENT
Term
T/F a lot of drug interactions occur with RTI's b/c of hepatic enzymes
Definition
FALSE, not RTI's, protease inhibitors.
Term
T/F both NNRTI's and portease inhibitors do NOT develop rapid resistance
Definition
FALSE, oh hell yes those mofo's do develop resistance, much faster than NRTI's
Term
Function of integrase inhibitors
Definition
Strand transfer inhibitors
Term
Example of integrase inhibitor
Definition
raltegravir

RALtegravir: if your RALley them up, they can't integrate
Term
what are the 2 types of entry inhihibtors?
Definition
fusion and coreceptor antagonist
Term
what is a fusion inhibitor
Definition
enfuvirtide
Term
enfuvirtide is an easy drug for patients to take T/F
Definition
sooo false. mad painful, mad expensive.

broke and sad makes me en FUme.
Term
action of maraviroc
Definition
coreceptor antagonist
-Binds to CCR5 chemokine receptor on CD4 cells
Patient must have only CCR5-tropic strains of HIV-1 (macrophage-tropic viruses present early in infection).
Term
T/F HAART: recommended to use 1 or 2 drugs for standard care
Definition
FALSEEE 3- or FOURRR. virus on the flooorrr
Term
miscellaneous drugs
Definition
interferon alfas for hep c, b, HHV8, papillomas
Supporting users have an ad free experience!