Aspirin vs Vitamin K
## Aspirin vs Vitamin K: Overview
This comparison examines the pharmacological differences between **Aspirin** and **Vitamin K**.
## Mechanism of Action
**Aspirin**: Irreversibly inhibits cyclooxygenase-1 and -2.
## Pharmacokinetics
**Half-life**: Aspirin — 2-3 hours; Vitamin K — N/A.
## Chemical Properties
**Molecular Formula**: Aspirin — C9H8O4; Vitamin K — N/A.
**Molecular Weight**: Aspirin — 180.1580 g/mol; Vitamin K — N/A.
**Type**: Aspirin — Small molecule; Vitamin K — Unknown.