Tobramycin is classified as which type of antimicrobial?

Tobramycin is classified as which type of antimicrobial?

• A. Beta-lactam
• B. Aminoglycoside
• C. Macrolide
• D. Tetracycline

Answer: (B)

Aminoglycosides are bactericidal antibiotics that bind the 30S ribosomal subunit and cause misreading of the mRNA, leading to faulty protein production and rapid bacterial death. Tobramycin fits this class because it shares this mechanism and its clinical use is aligned with targeting aerobic Gram-negative bacteria, such as Pseudomonas. This differs from beta-lactams, which inhibit cell wall synthesis; from macrolides, which bind the 50S subunit and are usually bacteriostatic; and from tetracyclines, which also bind the 30S but block tRNA binding and are typically bacteriostatic. So, tobramycin is best classified as an aminoglycoside.

Aminoglycosides are bactericidal antibiotics that bind the 30S ribosomal subunit and cause misreading of the mRNA, leading to faulty protein production and rapid bacterial death. Tobramycin fits this class because it shares this mechanism and its clinical use is aligned with targeting aerobic Gram-negative bacteria, such as Pseudomonas. This differs from beta-lactams, which inhibit cell wall synthesis; from macrolides, which bind the 50S subunit and are usually bacteriostatic; and from tetracyclines, which also bind the 30S but block tRNA binding and are typically bacteriostatic. So, tobramycin is best classified as an aminoglycoside.