Aspirin vs Phentolamine

## Aspirin vs Phentolamine: Overview

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

## Mechanism of Action

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

## Pharmacokinetics

**Half-life**: Aspirin — 2-3 hours; Phentolamine — N/A.

## Chemical Properties

**Molecular Formula**: Aspirin — C9H8O4; Phentolamine — N/A.

**Molecular Weight**: Aspirin — 180.1580 g/mol; Phentolamine — N/A.

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