Antimicrobials 2 Flashcards
What is zanamivir used for?
Influenza A and B - decreases symptom duration if used within 48 hours of onset
How do amantidine, zanamivir and immunoglobulins work?
By preventing the virus from entering or leaving the cell
How dose acyclovir work and what is it used for?
HSV, VZV - works via TK to induce synthesis of false DNA
Selectively toxic
Under what drug class are acyclovir and ganciclovir?
Nucleosides/nucleotide analogues
What is ganciclovir used for?
Severe CMV infections in an immunocompromised host
Why is CMV resistant to aciclovir but not ganciclovir?
CMV doesn’t code for TK
What are antiretrovirals also called?
NRTIs - nucleotide reverse transcriptase inhibitors
Give an example of a NRTI?
Tenofovir
What is zidovudine?
Oral NRTI for AIDS
What is zanamivir otherwise known as?
Relenza
What is oseltamivir otherwise known as?
Tamiflu
What are zanamivir (Relenza) and oseltamivir (Tamiflu)?
Neuraminidase inhibitors used for flu
What is indinavir?
Protease inhibitor
What method is used to determine drug susceptibility via culture?
Kirby-Bauer method