Drug interactions
Alteplase + Aspirin / citric acid / sodium bicarbonate
Severity: Major
Alteplase and Aspirin / citric acid / sodium bicarbonate: 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
Aspirin inhibits platelet function, and alteplase dissolves fibrin clots, so together they raise the likelihood of serious bleeding. Aspirin is often given alongside thrombolysis in acute coronary syndromes, but the bleeding risk, including intracranial hemorrhage, is increased.
What this interaction means in plain words
Alteplase and Aspirin / citric acid / sodium bicarbonate 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 pharmacodynamic effect: irreversible platelet cyclooxygenase inhibition combined with plasminogen activation and fibrinolysis.
What to do
Use together only where indicated, such as acute MI or stroke protocols, and follow local thrombolysis protocols on antiplatelet timing. Monitor closely for bleeding and neurological change, and avoid other additional hemostasis-impairing drugs.
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 Alteplase
- Alteplase + Defibrotide Contraindicated
- Alteplase + Reteplase Contraindicated
- Alteplase + Tenecteplase Contraindicated
- Acetylsalicylic acid + Alteplase Major
- Alteplase + Apixaban Major
- Alteplase + Argatroban Major
Frequently asked questions
Can I take Alteplase with Aspirin / citric acid / sodium bicarbonate?
MediHelp rates the interaction as major. Alteplase and Aspirin / citric acid / sodium bicarbonate 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. Aspirin inhibits platelet function, and alteplase dissolves fibrin clots, so together they raise the likelihood of serious bleeding. Aspirin is often given alongside thrombolysis in acute coronary syndromes, but the bleeding risk, including intracranial hemorrhage, is increased.
How serious is the interaction between Alteplase and Aspirin / citric acid / sodium bicarbonate?
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 together only where indicated, such as acute MI or stroke protocols, and follow local thrombolysis protocols on antiplatelet timing. Monitor closely for bleeding and neurological change, and avoid other additional hemostasis-impairing drugs.
What other medicines interact with Alteplase?
MediHelp also lists interactions of Alteplase with, for example, Defibrotide, Reteplase, Tenecteplase. The full list is on the Alteplase page.
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