Warfarin is a high-risk medicine. You can reduce harm from warfarin and measure its effectiveness with INR monitoring.
Check other medicines prescribed or purchased including alternative products.
- Document the target INR.
- Interactions can affect the INR and result in harm, for example:
- many antibiotics and antifungals
- some over-the-counter and alternative medicines
- green leafy vegetables.
- Check the patient’s understanding of INR monitoring.
For more information, see these online resources.