Interaction Checker

Green tea (extract) interactions

Green tea contains caffeine and vitamin K and has been shown to lower blood levels of at least one beta blocker.

Green tea (extract) has 1 documented interactions across the FDA labels and fact sheets we index: 0 major, 1 moderate, 0 minor, and 0 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This food and drink page is a starting point, not a verdict for your situation.

Moderate interactions (1)

  • Nadololbeta blockerModerate

    Green tea has been shown to reduce blood levels of the beta blocker nadolol, which may reduce its effect. (NCCIH, Green Tea)

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Not medical advice. Severity reflects the label's wording, not your circumstances. A "major" flag can be routine under supervision and a "minor" one can matter at high doses. Ask a pharmacist.