The Hidden Risks: 13 Medications That Can Interact Negatively with Green Tea

Medriva Correspondents
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The Hidden Risks: 13 Medications That Can Interact Negatively with Green Tea

The Hidden Risks: 13 Medications That Can Interact Negatively with Green Tea


Green tea, a popular beverage worldwide, is celebrated for its refreshing taste and numerous health benefits. However, with increased consumption comes a greater necessity to understand how it interacts with the medications around you. Unexpected interactions of green tea with certain drugs can pose serious health risks. Unearthing these hidden perils can be crucial to maintaining your wellness.


A Closer Look at the Troublesome Duo: Medications & Green Tea

With polyphenols - bioactive compounds, green tea can influence the effectiveness of medications, even leading to side effects in some cases. Let’s delve into the thirteen medications potentially negatively counteracting with green tea.

1. Blood Thinners


Green tea contains Vitamin K known for aiding clotting, which can reduce the effectiveness of blood thinners like Warfarin.

2. Beta-blockers, Propranolol, and Metoprolol

These drugs are commonly used to manage irregular heartbeats and high blood pressure levels. The catechins in green tea can lower their effectiveness.


3. Chemotherapy Drugs

Evidence from recent studies suggests that green tea might interfere with bortezomib and other boronic acid-based proteasome inhibitors used in chemotherapy.

4. Antidepressant Drugs


Green tea can increase the concentration of these drugs, augmenting their side effects like nervousness, heart palpitations, and insomnia.

5. Lithium

Green tea may lower the effectiveness of this drug used for treating mental disorders.


6. Anticonvulsants

A used treatment for seizures may see a decline in its effectiveness due to green tea consumption.

7. Antibiotics (Quinolone)


Green tea can decrease the maximum concentration of these drugs significantly, potentially lowering their effectiveness.

8. Statins

The lipid-lowering medication can interact with green tea, impacting the absorption of the drug.


9. Estrogen Pills

Green tea seems capable of reducing the effects of estrogen pills like Premarin.

10. Tagamet (Cimetidine)

Green tea can amplify the side effects of heartburn medication - Tagamet.

11. Fexofenadine (Allegra)

The absorption of this antihistamine can be hindered by green tea, leading to reduced effectiveness.

12. Birth Control Pills

Green tea may reduce blood levels of ethinyl estradiol included in many birth control pills, reducing their effectiveness.

13. Clozapine

A drug used to treat psychiatric disorders may see a rise in its side effects due to green tea, including dizziness, rapid heartbeat, or fainting.

Wielding Knowledge to Stay Fit

Remember, moderation and caution are the keys to navigating the hidden risks of green tea and medication. Consulting health professionals before combining green tea with medications can indeed keep troublesome interactions at bay. Stay healthy, stay happy!

High Blood Pressure Green Tea Blood Thinning Chemotherapy Propranolol Metoprolol