Loratadine vs Rabeprazole

## Loratadine vs Rabeprazole: Overview

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

## Mechanism of Action

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

**Rabeprazole**: Proton pump inhibitor irreversibly inhibiting gastric H+/K+-ATPase with faster onset than omeprazole.

## Pharmacokinetics

**Half-life**: Loratadine — 8 hours; Rabeprazole — 1-2 hours.

## Chemical Properties

**Molecular Formula**: Loratadine — C22H23ClN2O2; Rabeprazole — C18H21N3O3S.

**Molecular Weight**: Loratadine — 382.8800 g/mol; Rabeprazole — 359.4440 g/mol.

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