Which suffix is typical for fluoroquinolones?

Which suffix is typical for fluoroquinolones?

• A. End in -Cycline
• B. End in -Mycin
• C. End in -Floxacin
• D. End in -Cillin

Answer: (C)

Suffixes in antibiotic names help you spot the class. Fluoroquinolones end with -floxacin, so drugs like ciprofloxacin, levofloxacin, and moxifloxacin fit this group. This naming pattern reflects a shared mechanism—these drugs inhibit bacterial DNA gyrase and topoisomerase IV, disrupting DNA replication. The other endings point to different antibiotic classes: -cycline is seen with tetracyclines, -mycin is common for macrolides (and some other older agents), and -cillin marks penicillins, a beta-lactam class. So the -floxacin ending is the telltale sign of fluoroquinolones.

Suffixes in antibiotic names help you spot the class. Fluoroquinolones end with -floxacin, so drugs like ciprofloxacin, levofloxacin, and moxifloxacin fit this group. This naming pattern reflects a shared mechanism—these drugs inhibit bacterial DNA gyrase and topoisomerase IV, disrupting DNA replication. The other endings point to different antibiotic classes: -cycline is seen with tetracyclines, -mycin is common for macrolides (and some other older agents), and -cillin marks penicillins, a beta-lactam class. So the -floxacin ending is the telltale sign of fluoroquinolones.