Fentanyl vs Loratadine

## Fentanyl vs Loratadine: Overview

This comparison examines the pharmacological differences between **Fentanyl** and **Loratadine**.

## Mechanism of Action

**Fentanyl**: Highly potent synthetic mu-opioid receptor agonist approximately 100 times more potent than morphine.

**Loratadine**: Second-generation H1 antihistamine with minimal CNS effects.

## Pharmacokinetics

**Half-life**: Fentanyl — 2-4 hours; Loratadine — 8 hours.

## Chemical Properties

**Molecular Formula**: Fentanyl — C22H28N2O; Loratadine — C22H23ClN2O2.

**Molecular Weight**: Fentanyl — 336.4700 g/mol; Loratadine — 382.8800 g/mol.

**Type**: Fentanyl — Small molecule; Loratadine — Small molecule.