Aspirin vs Phenytoin

## Aspirin vs Phenytoin: Overview

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

## Mechanism of Action

**Aspirin**: Irreversibly inhibits cyclooxygenase-1 and -2.

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

## Pharmacokinetics

**Half-life**: Aspirin — 2-3 hours; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Aspirin — C9H8O4; Phenytoin — C15H12N2O2.

**Molecular Weight**: Aspirin — 180.1580 g/mol; Phenytoin — 252.2680 g/mol.

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