Answer
No routine INR monitoring is used to measure its effect. Specialist anti-Xa testing may be used in selected circumstances.
Sources for this answer
- Arixtra Fondaparinux sodium solution for injection 1.5 mg/ 0.3 ml — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.