Cephalexin vs Phenytoin

Cephalexin vs Phenytoin: Overview

This comparison examines the pharmacological differences between Cephalexin and Phenytoin.

Mechanism of Action

Cephalexin: First-generation cephalosporin inhibiting cell wall synthesis.

Phenytoin: Sodium channel blocker stabilizing inactive state.

Pharmacokinetics

Half-life: Cephalexin — 0.5-1.2 hours; Phenytoin — 22 hours.

Chemical Properties

Molecular Formula: Cephalexin — C16H17N3O4S; Phenytoin — C15H12N2O2.

Molecular Weight: Cephalexin — 347.3890 g/mol; Phenytoin — 252.2680 g/mol.

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