antiparasitic Flashcards
relationship where one animal benefits and the other is harmed
parasitic
parasites can be contracted by
animal to animal, ingestion, insects, direct contact with parasite
helminths are divided into 2 categories
nematodes (roundworm and hookworms) and platyhelminths (tapeworms and flukes)
work by interfering with energy metabolism of worm
benzimidazoles
has antifungal and anti inflammatory effect
thiabendazole
wide spectrum of activity given for 3 ys
fenbendazole
generic name for valbazen
albendazole
stimulate nematodes cholinergic nervous system leading to paralysis
imidazothiazoles
example of imidazothiazoles
levamisole
mimic action of ACh and cause paralysis to ascarids, pinworms, and strongyles and hookworms
tetrahydropyrimidines
examples of tetrahydropyrimidines
pyrantel pamoate (Nemex, Strongid) pyrantel tartrate, and morantel tartrate
strongid is affected against
hooks and rounds
bind to certain channels in the parasite nerve and muscle cells causing paralysis and death, heartworms and mange
avermectins (macrocyclic lactones)
examples of avermectins
ivermectin, moxidectin
breeds sensitive to ivermectin
collies, sheepdogs, and mixes
blocks neuromuscular transmission in the parasite, only against ascarids
piperazine
increases cestodes cell membrane permeability (disintegrates) can also be used on fleas
praziquantel
disintegration of cestode (taenia and dipylidium)
epsiprantel