Drug interactions
Enoxaparin + Reteplase
Severity: Major
Enoxaparin and Reteplase: major 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
Reteplase is a thrombolytic that dissolves fibrin clots, and combining it with enoxaparin increases the risk of serious bleeding, including intracranial hemorrhage. In some settings such as acute myocardial infarction they are used together deliberately, but the bleeding risk remains substantial.
What this interaction means in plain words
Enoxaparin and Reteplase 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.
Why it happens
Additive hemostatic impairment: fibrinolysis from reteplase plus anticoagulation from enoxaparin's antithrombin-mediated factor Xa inhibition.
What to do
Use only when there is a clear indication and follow the protocol-specific enoxaparin dosing alongside lytic therapy. Monitor closely for bleeding, including neurological changes, and avoid invasive procedures and intramuscular injections.
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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Other interactions of Enoxaparin
- Defibrotide + Enoxaparin Contraindicated
- Enoxaparin + Ketorolac Contraindicated
- Enoxaparin + Mifepristone Contraindicated
- Abciximab + Enoxaparin Major
- Aceclofenac + Enoxaparin Major
- Acetylsalicylic acid + Enoxaparin Major
Frequently asked questions
Can I take Enoxaparin with Reteplase?
MediHelp rates the interaction as major. Enoxaparin and Reteplase 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. Reteplase is a thrombolytic that dissolves fibrin clots, and combining it with enoxaparin increases the risk of serious bleeding, including intracranial hemorrhage. In some settings such as acute myocardial infarction they are used together deliberately, but the bleeding risk remains substantial.
How serious is the interaction between Enoxaparin and Reteplase?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use only when there is a clear indication and follow the protocol-specific enoxaparin dosing alongside lytic therapy. Monitor closely for bleeding, including neurological changes, and avoid invasive procedures and intramuscular injections.
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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