Cetirizine vs Metronidazole

Cetirizine vs Metronidazole: Overview

This comparison examines the pharmacological differences between Cetirizine and Metronidazole.

Mechanism of Action

Cetirizine: Second-generation H1 antihistamine.

Metronidazole: Forms cytotoxic free radicals that damage bacterial DNA.

Pharmacokinetics

Half-life: Cetirizine — 6.5-10 hours; Metronidazole — 8 hours.

Chemical Properties

Molecular Formula: Cetirizine — C21H25ClN2O3; Metronidazole — C6H9N3O3.

Molecular Weight: Cetirizine — 388.8900 g/mol; Metronidazole — 171.1540 g/mol.

Type: Cetirizine — Small molecule; Metronidazole — Small molecule.