Drug interactions
Garlic + Nettle
Severity: Minor
Garlic 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
Garlic may increase bleeding tendency while nettle, being rich in vitamin K, may oppose anticoagulant effects. The net effect is unpredictable and no meaningful direct interaction between the two is established.
What this interaction means in plain words
Garlic 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.
Why it happens
Opposing theoretical effects on hemostasis; no established mechanism between the two agents.
What to do
No specific action is needed for the pair; in patients on warfarin, ask about herbal use and monitor INR if either supplement is started or stopped.
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?
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Other interactions of Garlic
- Garlic + Saquinavir Major
- Aceclofenac + Garlic Moderate
- Acemetacin + Garlic Moderate
- Aescin + Garlic Moderate
- Alteplase + Garlic Moderate
- Argatroban + Garlic Moderate
Frequently asked questions
Can I take Garlic with Nettle?
MediHelp rates the interaction as minor. Garlic 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. Garlic may increase bleeding tendency while nettle, being rich in vitamin K, may oppose anticoagulant effects. The net effect is unpredictable and no meaningful direct interaction between the two is established.
How serious is the interaction between Garlic 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 is needed for the pair; in patients on warfarin, ask about herbal use and monitor INR if either supplement is started or stopped.
What other medicines interact with Garlic?
MediHelp also lists interactions of Garlic with, for example, Saquinavir, Aceclofenac, Acemetacin. The full list is on the Garlic page.
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