Other drugs may interact with green tea, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.
Do not take green tea without medical advice if you are using any of the following medications:
adenosine (Adenocard);
stimulant drugs (amphetamines, ephedrine, nicotine, others);
nadolol (Corgard);
asthma medications;
medications for depression or mental disorders;
medications that slow blood-clotting: ardeparin (Normiflo), aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), dipyridamole (Persantine), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, ticlopidine (Ticlid), warfarin (Coumadin), and others;
any medications to treat cancer;
estrogens and birth control pills;
any antibiotics or medication for fungal infections;
medication for seizures;
any medications for heart disease.
This list is not complete. Other drugs may interact with green tea, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this product guide.
 Green tea drug interactions (more detail)
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