Weekly Quiz 10 -Antimicrobials and Antiparasitics

What is the mechanism of action of penicillin?

Inhibits cell wall synthesis

Which antiparasitic drug is used topically in cats as Profender?

Emodepside

Chloramphenicol should be used with caution due to its potential to cause:

Aplastic anemia in humans

Which antifungal agent disrupts the fungal cell membrane by binding to ergosterol?

 Amphotericin B

Which antibiotic is effective against Rickettsial organisms?

Tetracycline

Which drug is effective against Giardia and has antiprotozoal activity?

Metronidazole

Aminoglycosides are most known for their potential to cause:

Nephrotoxicity and ototoxicity

Fluoroquinolones, such as enrofloxacin, primarily work by:

Interfering with DNA gyrase

Metronidazole is commonly used for:

Treating anaerobic infections and Giardia

Which is a heartworm adulticide?

Melarsomine

Which ectoparasite treatment is a neonicotinoid?

Imidacloprid

Which of the following is a lincosamide antibiotic?

Clindamycin

Which antiparasitic is also used to treat lung trematodes in dogs and cats?

Praziquantel

Which drug is used to treat equine protozoal myeloencephalitis (EPM)?

Pyrimethamine

What type of drug is clorsulon?

Antitrematodal

Imidazothiazoles like levamisole act on parasites by:

Stimulating the parasite's cholinergic nervous system

Sulfonamides act by:

Competing with PABA in folic acid synthesis

What is a common side effect of tetracyclines?

Staining of teeth

What is the primary route for administering milbemycin for heartworm prevention?

Oral

Praziquantel is effective against which group of parasites?

Cestodes