Narrow-spectrum antimicrobials are commonly used for prophylaxis following surgery.
β-lactamases can degrade vancomycin.
Echinocandins, known as “penicillin for fungi,” target β(1→3) glucan in fungal cell walls.
If drug A produces a larger zone of inhibition than drug B on the Kirby-Bauer disk diffusion test, drug A should always be prescribed.
The rate of discovery of antimicrobial drugs has decreased significantly in recent decades.