Drug interactions
Garlic + Green tea
Severity: Minor
Garlic and Green tea: 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
Both garlic supplements and green tea extracts have been reported to have mild antiplatelet effects. Taken together as supplements they could theoretically add to bleeding tendency, but dietary amounts are unlikely to matter.
What this interaction means in plain words
Garlic and Green tea 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 belongs to Gastrointestinal Tract; Green tea belongs to Gastrointestinal Tract.
Why it happens
Possible additive inhibition of platelet aggregation; the mechanism is not well established.
What to do
No action is needed for dietary use. In patients taking concentrated supplements who are also on anticoagulants or antiplatelets or before surgery, review the supplements and monitor for bruising or bleeding.
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
Other interactions of Green tea
- Adenosine + Green tea Moderate
- Benzphetamine + Green tea Moderate
- Bortezomib + Green tea Moderate
- Dextroamphetamine + Green tea Moderate
- Diethylpropion + Green tea Moderate
- Ephedrine + Green tea Moderate
Frequently asked questions
Can I take Garlic with Green tea?
MediHelp rates the interaction as minor. Garlic and Green tea have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Both garlic supplements and green tea extracts have been reported to have mild antiplatelet effects. Taken together as supplements they could theoretically add to bleeding tendency, but dietary amounts are unlikely to matter.
How serious is the interaction between Garlic and Green tea?
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 action is needed for dietary use. In patients taking concentrated supplements who are also on anticoagulants or antiplatelets or before surgery, review the supplements and monitor for bruising or bleeding.
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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