Which of the following drugs is an exception and does not end in "-mycin" among aminoglycoside antibiotics?

Aminoglycoside antibiotics are characterized by their specific structure and a common naming convention that typically includes the "-mycin" suffix. The most notable examples of aminoglycosides include gentamicin, tobramycin, and streptomycin—all of which adhere to this naming pattern.

Amikacin, while still classified as an aminoglycoside, does not follow the "-mycin" naming convention, making it the exception in this group. Understanding that amikacin is derived from kanamycin, the significant structural differences and modifications give it a unique classification and name, differentiating it from its "-mycin" counterparts.

This distinction is important as it reflects not just the names, but also the specific pharmacological properties and mechanisms of action that differentiate amikacin from the other aminoglycosides. Thus, recognizing these differences is crucial for both clinical application and understanding the pharmacology of antibiotics.