Loratadine vs Phenytoin

## Loratadine vs Phenytoin: Overview

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

## Mechanism of Action

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

**Phenytoin**: Sodium channel blocker stabilizing inactive state.

## Pharmacokinetics

**Half-life**: Loratadine — 8 hours; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Loratadine — C22H23ClN2O2; Phenytoin — C15H12N2O2.

**Molecular Weight**: Loratadine — 382.8800 g/mol; Phenytoin — 252.2680 g/mol.

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