Phenytoin vs Venlafaxine

## Phenytoin vs Venlafaxine: Overview

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

## Mechanism of Action

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

**Venlafaxine**: Serotonin-norepinephrine reuptake inhibitor (SNRI).

## Pharmacokinetics

**Half-life**: Phenytoin — 22 hours; Venlafaxine — 5 hours.

## Chemical Properties

**Molecular Formula**: Phenytoin — C15H12N2O2; Venlafaxine — C17H27NO2.

**Molecular Weight**: Phenytoin — 252.2680 g/mol; Venlafaxine — 277.4020 g/mol.

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