Drug interactions
Dalteparin + Defibrotide
Severity: Contraindicated
Dalteparin and Defibrotide: contraindicated 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
Defibrotide has profibrinolytic and antithrombotic activity, and combining it with a low molecular weight heparin adds to the risk of bleeding. Labeling for defibrotide contraindicates concurrent systemic antithrombotic or fibrinolytic therapy.
What this interaction means in plain words
Dalteparin and Defibrotide are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Dalteparin belongs to Cardiovascular; Defibrotide belongs to Cardiovascular.
Why it happens
Additive pharmacodynamic effects on hemostasis from anticoagulation plus enhanced fibrinolysis.
What to do
Do not give together; hold dalteparin around defibrotide therapy and use an alternative plan. Routine maintenance or reopening of central venous lines is the usual exception.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Dalteparin
- Dalteparin + Ketorolac Contraindicated
- Dalteparin + Mifepristone Contraindicated
- Abciximab + Dalteparin Major
- Acalabrutinib + Dalteparin Major
- Aceclofenac + Dalteparin Major
- Acetylsalicylic acid + Dalteparin Major
Other interactions of Defibrotide
- Alteplase + Defibrotide Contraindicated
- Apixaban + Defibrotide Contraindicated
- Argatroban + Defibrotide Contraindicated
- Dabigatran etexilate + Defibrotide Contraindicated
- Defibrotide + Edoxaban Contraindicated
- Defibrotide + Enoxaparin Contraindicated
Frequently asked questions
Can I take Dalteparin with Defibrotide?
MediHelp rates the interaction as contraindicated. Dalteparin and Defibrotide are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Defibrotide has profibrinolytic and antithrombotic activity, and combining it with a low molecular weight heparin adds to the risk of bleeding. Labeling for defibrotide contraindicates concurrent systemic antithrombotic or fibrinolytic therapy.
How serious is the interaction between Dalteparin and Defibrotide?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not give together; hold dalteparin around defibrotide therapy and use an alternative plan. Routine maintenance or reopening of central venous lines is the usual exception.
What other medicines interact with Dalteparin?
MediHelp also lists interactions of Dalteparin with, for example, Ketorolac, Mifepristone, Abciximab. The full list is on the Dalteparin page.
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