Aspirin vs Simvastatin
## Aspirin vs Simvastatin: Overview
This comparison examines the pharmacological differences between **Aspirin** and **Simvastatin**.
## Mechanism of Action
**Aspirin**: Irreversibly inhibits cyclooxygenase-1 and -2.
**Simvastatin**: Prodrug converted to active form that inhibits HMG-CoA reductase.
## Pharmacokinetics
**Half-life**: Aspirin — 2-3 hours; Simvastatin — 2 hours.
## Chemical Properties
**Molecular Formula**: Aspirin — C9H8O4; Simvastatin — C25H38O5.
**Molecular Weight**: Aspirin — 180.1580 g/mol; Simvastatin — 418.5700 g/mol.
**Type**: Aspirin — Small molecule; Simvastatin — Small molecule.