. 2021 Jan 25;14(1):210–221. doi: 10.14202/vetworld.2021.210-221

Table-2.

World Health Organization antibiotic drug categories, their significance in human medicine, and some examples used in food animals.

Antimicrobial class	Significance in human therapeutics	Examples utilized in food animals
Aminoglycosides	Critically important	Gentamicin, neomycin
Macrolides and lincosamides	Critically important	Erythromycin, tilmicosin^a, lincomycin^a, tulathromycin^a, tylosin^a
β-Lactams	Critically important	Penicillin, ceftiofur^a, amoxicillin
Fluoroquinolones	Critically important	Ciprofloxacin, danofloxacin^a, enrofloxacin^a
Tetracyclines	Highly important	Chlortetracycline, oxytetracycline, tetracycline
Streptogramins	Highly important	Virginiamycin^a
Phenicols	Highly important	Florfenicol^a
Sulfonamides	Highly important	Many sulfonamides
Polymyxins	Important	Colistin

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