1) Antibiotic 2) Antibiotic drug 3) Kantrex 1) Kantrex 
An antibiotic of the aminoglycoside family that poisons translation by binding to the ribosomes.
<drug> Aminoglycoside antibiotic. ... (18 Nov 1997) ... 
(kan″ә-mi´sin) a broad-spectrum aminoglycosideantibiotic derived from Streptomyces kanamyceticus; effective against many gram-negative bacteria, and some gram-positive bacteria, including mycobacteria; used as the sulfate salt, administered orally, parenterally, or by inhalation.
Aminoglycoside antibiotic. See Table A4.
[n] - antibiotic (trade name Kantrex) used to treat severe infections
Kantrex noun antibiotic (trade name Kantrex) used to treat severe infections