Antimicrobial Agents — Flashcards

Flashcard 301: _____ blocks the enzyme arabinosyl transferase, inhibiting carbohydrate polymerization at the bacterial cell wall

Answer: Ethambutol

Flashcard 302: Integrase inhibitors will inhibit HIV _____ integration into the host cell genome, preventing mRNA production

Answer: dsDNA

Flashcard 303: Tenofovir + Lamivudine + _____ is the preferred regimen of choice for management of HIV-1 and Hep B coinfection

Answer: Dolutegravir

Flashcard 304: Which drugs for COVID-19 act by inhibiting RNA-dependent RNA polymerase (RdRp)?

Answer: Remdesivir, Molnupiravir, Favipiravir, and Ribavirin

Flashcard 305: Which drug for COVID-19 acts by inhibiting 3CLpro?

Answer: Nirmatrelvir (often co-administered with ritonavir as Paxlovid)

Extra: Nirmatrelvir is a potent inhibitor of the SARS-CoV-2 main protease (Mpro), also known as 3C-like protease (3CLpro). Ritonavir is added to the formulation not for its antiviral activity against SARS-CoV-2, but as a pharmacokinetic booster (it inhibits CYP3A to increase nirmatrelvir levels).

Flashcard 306: The endonuclease inhibitor for the treatment of acute uncomplicated influenza in adults is _____.

Answer: baloxavir marboxil

Flashcard 307: _____ is gametocidal to all species causing malaria.

Answer: Primaquine

Flashcard 308: Which antimalarial drugs have high activity against gametocytes?_____

Answer: Artemisinins and Primaquine

Flashcard 309: Which drug is useful in treating cases of angioinvasive aspergillosis that do not respond to Amphotericin B?_____

Answer: Caspofungin

Flashcard 310: What is the first-line ART regimen for patients with abnormal serum creatinine (CrCl < 60 mL/min)?

Answer: Abacavir + Lamivudine + Dolutegravir