Cephalexin vs Norfloxacin

Cephalexin vs Norfloxacin: Overview

This comparison examines the pharmacological differences between Cephalexin and Norfloxacin.

Mechanism of Action

Cephalexin: First-generation cephalosporin inhibiting cell wall synthesis.

Norfloxacin: Second-generation fluoroquinolone inhibiting bacterial DNA gyrase and topoisomerase IV.

Pharmacokinetics

Half-life: Cephalexin — 0.5-1.2 hours; Norfloxacin — 3-4 hours.

Chemical Properties

Molecular Formula: Cephalexin — C16H17N3O4S; Norfloxacin — C16H18FN3O3.

Molecular Weight: Cephalexin — 347.3890 g/mol; Norfloxacin — 319.3310 g/mol.

Type: Cephalexin — Small molecule; Norfloxacin — Small molecule.