Possible Interactions with Green Tea
Overview
Do not take green tea if you are taking anticoagulant (blood-thinning) medications like warfarin because this herb may inhibit the effect of these medications.
Green tea may affect the absorption of the following medications: atropine, codeine, ephedrine and pseudoephedrine. It may also interfere with the absorption of asthma medications like theophylline and aminophylline, and psychotherapeutic medications like haloperidol. Therefore, it is best to avoid using green tea when taking these medications.
Drug Interactions