Aspirin vs Rivaroxaban

## Aspirin vs Rivaroxaban: Overview

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

## Mechanism of Action

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

**Rivaroxaban**: Direct Factor Xa inhibitor.

## Pharmacokinetics

**Half-life**: Aspirin — 2-3 hours; Rivaroxaban — 5-9 hours.

## Chemical Properties

**Molecular Formula**: Aspirin — C9H8O4; Rivaroxaban — C19H18ClN3O5S.

**Molecular Weight**: Aspirin — 180.1580 g/mol; Rivaroxaban — 435.8820 g/mol.

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