Cetirizine vs Montelukast

Cetirizine vs Montelukast: Overview

This comparison examines the pharmacological differences between Cetirizine and Montelukast.

Mechanism of Action

Cetirizine: Second-generation H1 antihistamine.

Montelukast: Selective leukotriene D4 receptor antagonist.

Pharmacokinetics

Half-life: Cetirizine — 6.5-10 hours; Montelukast — 2.7-5.5 hours.

Chemical Properties

Molecular Formula: Cetirizine — C21H25ClN2O3; Montelukast — C35H36ClNO3S.

Molecular Weight: Cetirizine — 388.8900 g/mol; Montelukast — 586.1800 g/mol.

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