Drug interactions
Argatroban + Enoxaparin
Severity: Major
Argatroban and Enoxaparin: major interaction.
Last updated Sources: US FDA label
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
Combining a direct thrombin inhibitor with a low molecular weight heparin gives additive anticoagulation and a higher bleeding risk. Argatroban also affects coagulation assays, complicating monitoring.
What this interaction means in plain words
Argatroban and Enoxaparin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Argatroban belongs to Cardiovascular; Enoxaparin belongs to Cardiovascular.
Why it happens
Additive anticoagulation from direct thrombin inhibition plus antithrombin-mediated factor Xa inhibition.
What to do
Avoid concurrent use; in suspected HIT stop all heparins including enoxaparin before starting argatroban. Monitor aPTT and bleeding.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Enoxaparin
- Defibrotide + Enoxaparin Contraindicated
- Enoxaparin + Ketorolac Contraindicated
- Enoxaparin + Mifepristone Contraindicated
- Abciximab + Enoxaparin Major
- Aceclofenac + Enoxaparin Major
- Acetylsalicylic acid + Enoxaparin Major
Other interactions of Argatroban
- Argatroban + Defibrotide Contraindicated
- Argatroban + Ketorolac Contraindicated
- Argatroban + Mifepristone Contraindicated
- Abciximab + Argatroban Major
- Acalabrutinib + Argatroban Major
- Acetylsalicylic acid + Argatroban Major
Frequently asked questions
Can I take Argatroban with Enoxaparin?
MediHelp rates the interaction as major. Argatroban and Enoxaparin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Combining a direct thrombin inhibitor with a low molecular weight heparin gives additive anticoagulation and a higher bleeding risk. Argatroban also affects coagulation assays, complicating monitoring.
How serious is the interaction between Argatroban and Enoxaparin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concurrent use; in suspected HIT stop all heparins including enoxaparin before starting argatroban. Monitor aPTT and bleeding.
What other medicines interact with Enoxaparin?
MediHelp also lists interactions of Enoxaparin with, for example, Defibrotide, Ketorolac, Mifepristone. The full list is on the Enoxaparin page.
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