Spectrum of Activity

Question 1

Avermectins

Answer 1

◦ Kills parasites by interfering with their central nervous system
◦ Broad spectrum actibity against internal and external parasites
◦ Horses:
‣ Bots
‣ Ascarids
‣ Strongyles
‣ Pinworms
◦ Cattle:
‣ Trichostrongyles
‣ Lungworms
‣ Sucking Lice
◦ Swine:
‣ Ascarids
‣ Strongyles
‣ Lungworms
‣ Mites
◦ Dogs/Cats:
‣ Heartworm
‣ Microfilaria
‣ Ascarids
‣ Hookworms
‣ Fleas
‣ Mites
• Cats: Ear Mites
• Dogs: Sarcoptic Mites
• Most commonly used in large animals

Question 2

Isoquinolones

Answer 2

• Reduces the tapeworms resistance to digestion in the animals GI tract
• Effective against all common tapeworm species in dogs & cats

Question 3

Albendazole

Answer 3

• Effective against liver flukes in cattle
• Interferes with parasite metabolism
*Antitrematodal

Question 4

Clorsulon

Answer 4

• Effective against liver flukes in cattle
• Interferes with parasite metabolism
*Antitrematodal