shockry parasites Flashcards
5 MOA’s of antiparasitic drugs
- inhibition of NM blockers
- inhibition of nueronal system
- inhibiton of energy metabolism
- damaage membrane integrity
- inhibition of reproduction
competitive NM blockers
piperazine
Depolarizing NM blockers
levamisole
pyrantal
morantel
cholinesterase inhibitors
dichlorvos
trichlorfon
Activates G-protein couples R in LAT-1 and LAT-2 at NM junction increase release or inhibitory neuropeptides causing paralysis of somatic muscles and pharngeal pump resulting in death of parasite
emodepside..combo with praziquantail as spot on
inhibition of Neuronal system- bind to GABA and/or glutamate-gated Cl channels which
- increase cl membrane causing flaciid paralysis of somathic muscles
- inhibits egg production of parasite
MACROCYTIC LACTONES
- avermectins
- milbemycins
inhibit enegy metabolism by:
- bind to tubulin of parasite disrupting cell division
- deplete glycogen reserves tue to inhibit fumurate reductase and block mitchondrial function- parasitic death
BENZIMIDAZOLES- albendazole
ANTITREMATODAS - clorsulon
damage membrane integrity by:
1. release Ca+ from parasite muscle cell storage
- ionic changes
Praziquantel
Espsiprantel
inhibit reproduction
Anitprotozoals- inhibit growth
benzimidazoles- ovicidal and larvicidal
Anticoccidials (Eimeria & Isospora)
- amprolium
- decoquinate
- ionophore
- sulfonamides
anticoccidial
AMPROLIUM
- inhibits thiamine transport
- used to prevent coccidioses
- approved in laying birds
anticoccidial
DECOQUINATE
- inhibits mitochondrial electron transport
anticoccidial
IONOPHORE
monensin, lasalocid, salinomycin, narasin
- prevent coccidioses
- growth promoting feed-additive
anticoccidial
SULFONAMIDES
- sulfadimethoxine, sulfaquinoxaline, sulfametazine*
- *** ***treat outbreaks and prevention*
Giardiasis Drugs
- metronidazole
- benzimidazoles *NO bots
- quinacrine
- furazolidone
giardia
METRONIDAZOLE
DOC for anaerobes only (inhibit reductase/DNA synthesis)
giardia
BENZIMADZOLES
- albendazole– no GRUBS
- fenbendazole
NO BOTS
giadia
FURAZOLIDONE
use for PREGOS!
- metronidazole= DOG
- furazolidone- pregos
Balantidiasis
- Metronidazole
- Tetracycline- inhibit 30S
Trichomoniasis
- Metronidazole (dogs, horses)
- Cliquinol (diarrhea in horses)
- Carnidazole (pigeon canker
- )
Toxoplasmosis
- Clindamycin=DOC cat/dog
- Sulfonamides
- Potentiated sulfonamides
- pyrimethamine
- trimethoprim
histomonas meleagridis
- Organic arsenicals
- carbarsone, roxarsone, nitrarsone
Babesiosis in horses
Imidocarb