Cetirizine vs Lorazepam

Cetirizine vs Lorazepam: Overview

This comparison examines the pharmacological differences between Cetirizine and Lorazepam.

Mechanism of Action

Cetirizine: Second-generation H1 antihistamine.

Lorazepam: Intermediate-acting benzodiazepine enhancing GABA-A receptor chloride conductance.

Pharmacokinetics

Half-life: Cetirizine — 6.5-10 hours; Lorazepam — 10-20 hours.

Chemical Properties

Molecular Formula: Cetirizine — C21H25ClN2O3; Lorazepam — C15H10Cl2N2O2.

Molecular Weight: Cetirizine — 388.8900 g/mol; Lorazepam — 321.1580 g/mol.

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