Drug interactions
Factor x human + Heparin
Severity: Moderate
Factor x human and Heparin: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Heparin, through antithrombin, inactivates factor Xa, which opposes the effect of administered human factor X and may blunt its hemostatic benefit. Factor X concentrate is used to treat hereditary deficiency, and reduced efficacy could leave bleeding uncontrolled.
What this interaction means in plain words
Factor x human and Heparin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Pharmacodynamic antagonism: heparin-activated antithrombin inhibits activated factor X generated from the replacement product.
What to do
Avoid giving heparin during factor X replacement unless clearly required, and monitor clinical bleeding and factor X activity.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Factor x human and Heparin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Heparin
- Defibrotide + Heparin Contraindicated
- Heparin + Ketorolac Contraindicated
- Heparin + Oritavancin Contraindicated
- Acemetacin + Heparin Major
- Acetylsalicylic acid + Heparin Major
- Alteplase + Heparin Major
Frequently asked questions
Can I take Factor x human with Heparin?
MediHelp rates the interaction as moderate. Factor x human and Heparin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Heparin, through antithrombin, inactivates factor Xa, which opposes the effect of administered human factor X and may blunt its hemostatic benefit. Factor X concentrate is used to treat hereditary deficiency, and reduced efficacy could leave bleeding uncontrolled.
How serious is the interaction between Factor x human and Heparin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid giving heparin during factor X replacement unless clearly required, and monitor clinical bleeding and factor X activity.
What other medicines interact with Heparin?
MediHelp also lists interactions of Heparin with, for example, Defibrotide, Ketorolac, Oritavancin. The full list is on the Heparin page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
