Metoprolol vs Phenytoin

## Metoprolol vs Phenytoin: Overview

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

## Mechanism of Action

**Metoprolol**: Selective beta-1 adrenergic receptor blocker.

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

## Pharmacokinetics

**Half-life**: Metoprolol — 3-7 hours; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Metoprolol — C15H25NO3; Phenytoin — C15H12N2O2.

**Molecular Weight**: Metoprolol — 267.3640 g/mol; Phenytoin — 252.2680 g/mol.

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