Cetirizine vs Hydromorphone

## Cetirizine vs Hydromorphone: Overview

This comparison examines the pharmacological differences between **Cetirizine** and **Hydromorphone**.

## Mechanism of Action

**Cetirizine**: Second-generation H1 antihistamine.

**Hydromorphone**: Semisynthetic mu-opioid receptor agonist approximately 5 times more potent than morphine.

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Hydromorphone — 2-3 hours.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Hydromorphone — C17H19NO3.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Hydromorphone — 285.3380 g/mol.

**Type**: Cetirizine — Small molecule; Hydromorphone — Small molecule.