Interaction · Supplement
Green Tea Extract (EGCG) + Anticoagulants (warfarin): use with caution
Large amounts of green tea carry vitamin K and can affect anticoagulation — keep intake consistent.
- Overall grade
- Grade B
- Last revised
- 0
- graded outcomes
- 0
- references listed
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What is uncertain
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- Watch with Green Tea Extract (EGCG): About Green Tea Extract (EGCG)
The evidence in words
The interaction
Green Tea Extract (EGCG) and Anticoagulants (warfarin) — a caution interaction. Large amounts of green tea carry vitamin K and can affect anticoagulation — keep intake consistent.
What to do
Do not combine these casually. The interaction can matter clinically — bring it to the prescriber who manages the medication before stacking them.
About Green Tea Extract (EGCG)
Green tea extract concentrates catechins, chiefly EGCG, plus caffeine. Drinking green tea is benign and pleasant; high-dose concentrated extracts are a different risk profile.
The bigger picture
Supplement–drug and supplement–supplement interactions are the reason a stack should be read as a system, not a list. This platform's interactions graph maps them; the medication side always belongs with the person who prescribes it.
Related reading
Entries that share this one's tags or conditions.
- Algae Omega-3 + Anticoagulants (warfarin): use with cautionHigh-dose omega-3 adds bleeding risk on anticoagulants.Evidence grade B
- American Ginseng + Anticoagulants (warfarin): use with cautionMay reduce warfarin effect — monitor INR.Evidence grade B
- Bromelain + Anticoagulants (warfarin): use with cautionMild antiplatelet — additive bleeding risk.Evidence grade B
- Chlorella + Anticoagulants (warfarin): use with cautionVitamin-K content can antagonize warfarin — keep intake consistent.Evidence grade B
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.