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Drug interactions

Dalteparin + Nettle

Severity: Minor

Dalteparin and Nettle: minor 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

Nettle has been reported to have both anticoagulant-like and vitamin K-related effects, so its influence on dalteparin is uncertain. No well-documented clinical interaction has been described.

What this interaction means in plain words

Dalteparin and Nettle have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Mechanism is not established; nettle's vitamin K content is not expected to affect heparin activity.

What to do

No specific action beyond awareness is needed. Monitor for bleeding or thrombosis if large amounts of nettle supplements are taken.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Dalteparin with Nettle?

MediHelp rates the interaction as minor. Dalteparin and Nettle have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Nettle has been reported to have both anticoagulant-like and vitamin K-related effects, so its influence on dalteparin is uncertain. No well-documented clinical interaction has been described.

How serious is the interaction between Dalteparin and Nettle?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific action beyond awareness is needed. Monitor for bleeding or thrombosis if large amounts of nettle supplements are taken.

What other medicines interact with Dalteparin?

MediHelp also lists interactions of Dalteparin with, for example, Defibrotide, Ketorolac, Mifepristone. The full list is on the Dalteparin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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