Medical Definition of amikacin
: a semisynthetic aminoglycoside antibiotic that is derived from kanamycin and is administered intravenously or intramuscularly in the form of its sulfate C22H43N5O13·2H2SO4 chiefly to treat serious bacterial infections … amikacin has been effective against many clinical isolates resistant to other aminoglycosides.—George A. Jacoby et al., The New England Journal of Medicine, 28 Feb. 1991
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