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|pagetype = Drugs
 
|pagetype = Drugs
 
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These are chemicals used to treat and control parasites that reside on, or in, the skin and coat of animals. They are a diverse set of products that can be applied in various ways. Some important terms must be discussed first before mentioning how each drug works.
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'''Insecticides''' kill [[Insecta|insects]], whilst '''acaricides''' kill [[Arachnida|mites and ticks]].
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'''Endectocides''' are active against both endo and ectoparasites. This are discussed on the antihelmintic pages.
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'''Insect Growth Regulators''' don't kill adult stages but are able to prevent hatching, larval development or metamorphosis.
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==Modes of Action==
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