Drug interactions
Heparin + Thyroid desiccated
Severity: Minor
Heparin and Thyroid desiccated: minor 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
Thyroid hormones increase catabolism of vitamin K-dependent clotting factors, which strengthens oral anticoagulant effect. With heparin the effect is not well established and is likely small.
What this interaction means in plain words
Heparin and Thyroid desiccated have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Thyroid hormone accelerates clotting factor turnover, a mechanism relevant mainly to warfarin; effect on heparin is uncertain.
What to do
Monitor aPTT or anti-Xa as part of routine heparin therapy, especially when thyroid doses change.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Heparin and Thyroid desiccated, 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 Heparin with Thyroid desiccated?
MediHelp rates the interaction as minor. Heparin and Thyroid desiccated have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Thyroid hormones increase catabolism of vitamin K-dependent clotting factors, which strengthens oral anticoagulant effect. With heparin the effect is not well established and is likely small.
How serious is the interaction between Heparin and Thyroid desiccated?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor aPTT or anti-Xa as part of routine heparin therapy, especially when thyroid doses change.
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.
