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What interactions may occur when drinking black tea?

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Black tea or black tea supplements may interfere with other medicines and supplements you are taking. Some medicines can cause caffeine to stay in your body longer than usual. Talk to your doctor to see if medicines you are taking may have this effect.

From: Black Tea WebMD Medical Reference

SOURCES:

National Cancer Institute web site: "Tea and Cancer Prevention Fact Sheet."

Roberts, A. , 2005. Alternative Medicine Review

The Leaf web site: "Oxidation and Fermentation in Tea Manufacture."

National Cancer Institute web site: "Tea and Cancer Prevention Fact Sheet."

Natural Medicines Comprehensive Database: "Black Tea."

Baker, J.A. , January-February 2007. International Journal of Gynecological Cancer

Gardner, E.J. . January 2007. European Journal of Clinical Nutrition

Hodgson, J.M.  , January 19, 2013. Food and Function

Hodgson, J.M. , December 2010. Molecular Aspects of Medicine

Bersniak, A.  , Nov. 8, 2012. BMJ Open

Reviewed by Carmen Patrick Mohan on May 8, 2017

SOURCES:

National Cancer Institute web site: "Tea and Cancer Prevention Fact Sheet."

Roberts, A. , 2005. Alternative Medicine Review

The Leaf web site: "Oxidation and Fermentation in Tea Manufacture."

National Cancer Institute web site: "Tea and Cancer Prevention Fact Sheet."

Natural Medicines Comprehensive Database: "Black Tea."

Baker, J.A. , January-February 2007. International Journal of Gynecological Cancer

Gardner, E.J. . January 2007. European Journal of Clinical Nutrition

Hodgson, J.M.  , January 19, 2013. Food and Function

Hodgson, J.M. , December 2010. Molecular Aspects of Medicine

Bersniak, A.  , Nov. 8, 2012. BMJ Open

Reviewed by Carmen Patrick Mohan on May 8, 2017

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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