02: Intro to Parasiticides

Endoparasiticides

Treats or controls endoparasites

Ectoparasiticides

Treats or controls ectoparasites

Endectocides

Treats or controls both ectoparasites and endoparasites

As a clinician, what do you need to know about parasiticides

• How long it lasts in the body

• How often it needs to be given

• Which species it can be used in

Technical definition for a parasite “treatment”

Kills >90% of parasites

Technical definition for a parasite “control”

Kills >80% of parasites

Which class of parasiticides has a higher standard for the term treatment

Heartworm treatments

AMDUCA purpose

Gives vets the freedom to use drugs in an extra label fashion if there is data that it works a such and if there isn’t an existing product for your species

Why is parasiticide resistance inevitable

Selective pressures of drug use

T/F: parasites can be adequately controlled with drugs

False; need integrated strategies including environmental management, husbandry practices, and other preventatives.

Types of endoparasiticides

Anthelmintics and antiprotozoals

If a drug works on nematodes, which other endoparasite does it usually NOT work on

Flatworms (trematodes and cestodes)

Drug group that has helminth AND protozoal activity

Benzimidazoles and probenzimidazoles (fenbendazole!)

Types of ectoparasitices

Insecticides and acaricides

If a drug works on ticks, which other ectoparasite does it typically cover

Mites