Drug interactions
Gemcitabine + Heparin
Severity: Moderate
Gemcitabine 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
Gemcitabine commonly causes thrombocytopenia, which increases bleeding risk with heparin. It can also rarely cause thrombotic microangiopathy.
What this interaction means in plain words
Gemcitabine 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.
Gemcitabine belongs to Oncology; Heparin belongs to Cardiovascular.
Why it happens
Additive bleeding risk from chemotherapy-induced thrombocytopenia combined with heparin anticoagulation.
What to do
Monitor platelet counts before each cycle and during heparin therapy. Reduce or hold heparin when platelets fall below accepted safety thresholds.
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?
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Other interactions of Heparin
- Defibrotide + Heparin Contraindicated
- Heparin + Ketorolac Contraindicated
- Heparin + Oritavancin Contraindicated
- Acemetacin + Heparin Major
- Acetylsalicylic acid + Heparin Major
- Alteplase + Heparin Major
Other interactions of Gemcitabine
Frequently asked questions
Can I take Gemcitabine with Heparin?
MediHelp rates the interaction as moderate. Gemcitabine 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. Gemcitabine commonly causes thrombocytopenia, which increases bleeding risk with heparin. It can also rarely cause thrombotic microangiopathy.
How serious is the interaction between Gemcitabine 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: Monitor platelet counts before each cycle and during heparin therapy. Reduce or hold heparin when platelets fall below accepted safety thresholds.
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.
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