Moderate Interaction
Be cautious with this combination
Adenosine (Adenocard) interacts with GREEN TEA
Green tea contains caffeine. The caffeine in green tea might block the effects of adenosine, which is often used by doctors to do a test called a cardiac stress test. Stop consuming green tea at least 24 hours before a cardiac stress test.
Antibiotics (Quinolone antibiotics) interacts with GREEN TEA
The body breaks down caffeine to get rid of it. Some antibiotics might decrease how quickly the body breaks down caffeine. Taking these antibiotics along with green tea can increase the risk of side effects including jitteriness, headache, increased heart rate, and other side effects.
Birth control pills (Contraceptive drugs) interacts with GREEN TEA
Green tea contains caffeine. The body breaks down caffeine to get rid of it. Birth control pills can decrease how quickly the body breaks down caffeine. This might increase the risk for side effects from caffeine, such as jitteriness, headache, and fast heartbeat.
Cimetidine (Tagamet) interacts with GREEN TEA
Green tea contains caffeine. The body breaks down caffeine to get rid of it. Cimetidine can decrease how quickly the body breaks down caffeine. Taking cimetidine along with green tea might increase the chance of caffeine side effects including jitteriness, headache, fast heartbeat, and others.
Clozapine (Clozaril) interacts with GREEN TEA
The body breaks down clozapine to get rid of it. The caffeine in green tea seems to decrease how quickly the body breaks down clozapine. Taking green tea along with clozapine can increase the effects and side effects of clozapine.
Dipyridamole (Persantine) interacts with GREEN TEA
Green tea contains caffeine. The caffeine in green tea might block the effects of dipyridamole. Dipyridamole is often used by doctors to do a test on the heart called a cardiac stress test. Stop drinking green tea at least 24 hours before a cardiac stress test.
Disulfiram (Antabuse) interacts with GREEN TEA
The body breaks down caffeine to get rid of it. Disulfiram can decrease how quickly the body gets rid of caffeine. Taking green tea along with disulfiram might increase the effects and side effects of caffeine, including jitteriness, hyperactivity, irritability, and others.
Estrogens interacts with GREEN TEA
The body breaks down the caffeine in green tea to get rid of it. Estrogens can decrease how quickly the body breaks down caffeine. Taking estrogen and drinking green tea can increase the risk of caffeine side effects, including jitteriness, headache, fast heartbeat, and others.
Fluvoxamine (Luvox) interacts with GREEN TEA
The body breaks down the caffeine in green tea to get rid of it. Fluvoxamine can decrease how quickly the body breaks down caffeine. Taking fluvoxamine along with green tea might increase the risk of caffeine side effects such as jitteriness, headache, fast heartbeat, and others.
Lithium interacts with GREEN TEA
The caffeine in green tea can increase how quickly the body gets rid of lithium. If you take products that contain caffeine and you take lithium, don't stop taking caffeine all at once. Decrease the daily dose of caffeine slowly. Stopping caffeine too quickly can increase the side effects of lithium.
Medications that can harm the liver (Hepatotoxic drugs) interacts with GREEN TEA
Green tea extracts might harm the liver. Some medications can also harm the liver. Taking green tea extracts along with a medication that can harm the liver might increase the risk of liver damage.
Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs) interacts with GREEN TEA
Green tea might slow blood clotting. Taking green tea along with medications that also slow blood clotting might increase the risk of bruising and bleeding.
Nicotine interacts with GREEN TEA
Stimulant drugs such as nicotine speed up the nervous system. The caffeine in green tea might also speed up the nervous system. Taking green tea along with stimulant drugs might cause serious problems, including increased heart rate and high blood pressure. Avoid taking stimulant drugs along with caffeine.
Pentobarbital (Nembutal) interacts with GREEN TEA
The stimulant effects of the caffeine in green tea can block the sleep-producing effects of pentobarbital.
Phenylpropanolamine interacts with GREEN TEA
Green tea contains caffeine. Caffeine can stimulate the body. Phenylpropanolamine can also stimulate the body. Taking green tea and phenylpropanolamine together might cause too much stimulation and increase heartbeat and blood pressure and cause nervousness.
Riluzole (Rilutek) interacts with GREEN TEA
Drinking green tea can decrease how quickly the body breaks down riluzole and increase the effects and side effects of riluzole.
Theophylline interacts with GREEN TEA
Green tea contains caffeine. Caffeine works similarly to theophylline. Caffeine can also decrease how quickly the body gets rid of theophylline. Taking green tea along with theophylline might increase the effects and side effects of theophylline.
Verapamil (Calan, others) interacts with GREEN TEA
Verapamil can decrease how quickly the body gets rid of caffeine. Drinking green tea and taking verapamil can increase the risk of caffeine side effects including jitteriness, headache, and an increased heartbeat.
Warfarin (Coumadin) interacts with GREEN TEA
Green tea contains vitamin K. Vitamin K can reduce the effect of warfarin. But the amount of vitamin K in green tea is very small. So green tea is unlikely to interact with warfarin when used in moderation. Large amounts of green tea, such as 8 cups or more each day, should be avoided.
Bortezomib (Velcade) interacts with GREEN TEA
Bortezomib is used in certain types of cancers. Green tea might interact with bortezomib and decrease its effects. If you take bortezomib, avoid taking green tea products.
Medications for asthma (Beta-adrenergic agonists) interacts with GREEN TEA
Green tea contains caffeine. Caffeine can stimulate the heart. Some medications for asthma can also stimulate the heart. Taking caffeine with some medications for asthma might cause too much stimulation and cause heart problems.
Medications for depression (MAOIs) interacts with GREEN TEA
Green tea contains caffeine. There is some concern that caffeine can interact with certain medications, called MAOIs. If caffeine is taken with these medications, it might increase the risk for serious side effects including fast heartbeat and very high blood pressure.Some common MAOIs include phenelzine (Nardil), selegiline (Zelapar), and tranylcypromine (Parnate).
Stimulant drugs interacts with GREEN TEA
Stimulants, such as amphetamines and cocaine, speed up the nervous system. By speeding up the nervous system, stimulant medications can increase blood pressure and speed up the heartbeat. Green tea contains caffeine. Caffeine can also speed up the nervous system. Taking green tea along with stimulant drugs might cause serious problems including increased heart rate and high blood pressure.
Medications moved by pumps in cells (Organic Anion-Transporting Polypeptide Substrates) interacts with GREEN TEA
Some medications are moved in and out of cells by pumps. Green tea might change how these pumps work and change how much medication stays in the body. In some cases, this might change the effects and side effects of a medication.
5-Fluorouracil interacts with GREEN TEA
Taking large amounts of green tea along with 5-fluorouracil might increase levels of 5-fluorouracil. This might increase the effects and side effects of 5-fluorouracil.
Rosuvastatin (Crestor) interacts with GREEN TEA
Taking green tea extract might change the amount of rosuvastatin in the blood. This might change the effects and side effects of rosuvastatin.
Carbamazepine (Tegretol) interacts with GREEN TEA
Caffeine can decrease the effects of carbamazepine. Since green tea contains caffeine, taking green tea with carbamazepine might decrease the effects of carbamazepine.
Celiprolol (Celicard) interacts with GREEN TEA
Green tea appears to decrease how much celiprolol is absorbed into the body. This might decrease the effects of celiprolol.
Ethosuximide (Zarontin) interacts with GREEN TEA
Ethosuximide is a drug used to treat seizures. Caffeine in green tea can decrease the effects of ethosuximide. Taking green tea with ethosuximide might decrease the effects of ethosuximide. This might increase the risk of seizures.
Felbamate (Felbatol) interacts with GREEN TEA
Felbamate is a drug used to treat seizures. The caffeine in green tea might decrease the effects of felbamate and increase the risk of seizures in some people.
Flutamide (Eulexin) interacts with GREEN TEA
The body breaks down flutamide to get rid of it. The caffeine in green tea might decrease how quickly the body gets rid of flutamide. This could increase the effects and side effects of flutamide.
Imatinib (Gleevec) interacts with GREEN TEA
Imatinib is used to treat certain types of cancer. Green tea appears to reduce how much imatinib gets into the body. This might decrease the effects of imatinib.
Lisinopril interacts with GREEN TEA
Green tea appears to decrease how much lisinopril is absorbed into the body. This might decrease the effects of lisinopril.
Medications that decrease break down of other medications by the liver (Cytochrome P450 CYP1A2 (CYP1A2) inhibitors) interacts with GREEN TEA
Green tea is changed and broken down by the liver. Some drugs decrease how quickly the liver changes and breaks down green tea. This could change the effects and side effects of green tea.
Phenobarbital (Luminal) interacts with GREEN TEA
Phenobarbital is a drug used to treat seizures. The caffeine in green tea might decrease the effects of phenobarbital and increase the risk of seizures in some people.
Phenytoin (Dilantin) interacts with GREEN TEA
Phenytoin is a drug used to treat seizures. The caffeine in green tea can decrease the effects of phenytoin. Taking green tea with phenytoin might decrease the effects of phenytoin and increase the risk of seizures in some people.
Valproate interacts with GREEN TEA
The caffeine in green tea might decrease the effects of valproate.
Water pills (Diuretic drugs) interacts with GREEN TEA
Green tea contains caffeine. Caffeine, especially in large amounts, can reduce potassium levels in the body. "Water pills" can also decrease potassium in the body. Taking large amounts of caffeine along with "water pills" might decrease potassium in the body too much.
Fexofenadine (Allegra) interacts with GREEN TEA
Green tea might decrease how much fexofenadine the body absorbs. Separate taking this medication from consuming green tea.
Nintedanib (Ofev) interacts with GREEN TEA
Green tea might decrease how much nintedanib is in the body. It's not clear if this is a real concern.
Pioglitazone (Actos) interacts with GREEN TEA
Green tea contains caffeine. Caffeine might increase the amount of pioglitazone that the body absorbs. Taking green tea might increase the effects and adverse effects of pioglitazone.
Minor Interaction
Be watchful with this combination
Alcohol (Ethanol) interacts with GREEN TEA
The body breaks down the caffeine in green tea to get rid of it. Alcohol can decrease how quickly the body breaks down caffeine. Taking green tea along with alcohol might increase the effects and side effects of caffeine, including jitteriness, headache, and fast heartbeat.
Fluconazole (Diflucan) interacts with GREEN TEA
Green tea contains caffeine. The body breaks down caffeine to get rid of it. Fluconazole might decrease how quickly the body gets rid of caffeine. Taking fluconazole along with green tea might increase the risk of caffeine side effects such as jitteriness, headache, fast heartbeat, and others.
Medications for diabetes (Antidiabetes drugs) interacts with GREEN TEA
Green tea contains caffeine. Caffeine can either increase or decrease blood sugar. Diabetes medications are used to lower blood sugar. Taking some medications for diabetes along with caffeine might change the effects of the diabetes medications. Monitor your blood sugar closely. The dose of your diabetes medication might need to be changed.
Mexiletine (Mexitil) interacts with GREEN TEA
Green tea contains caffeine. Mexiletine can decrease how quickly the body breaks down caffeine. Taking mexiletine along with green tea might increase the risk of caffeine side effects such as jitteriness, headache, fast heartbeat, and others.
Terbinafine (Lamisil) interacts with GREEN TEA
Terbinafine can decrease how fast the body gets rid of caffeine. Taking green tea along with terbinafine can increase the risk of caffeine side effects including jitteriness, headache, increased heartbeat, and other effects.
Medications changed by the liver (Cytochrome P450 3A4 (CYP3A4) substrates) interacts with GREEN TEA
Some medications are changed and broken down by the liver. Green tea might change how quickly the liver breaks down these medications. This could change the effects and side effects of these medications.
Midazolam (Versed) interacts with GREEN TEA
Green tea might decrease how quickly the body breaks down midazolam. Taking green tea along with midazolam might increase the effects and side effects of midazolam. But is not clear if this is a big concern.
Nicardipine (Cardene) interacts with GREEN TEA
A chemical in green tea called EGCG might increase how much nicardipine is absorbed in the body. Green tea might increase the effects and side effects of nicardipine. But it's not clear if this is a real concern.
Metformin (Glucophage) interacts with GREEN TEA
Green tea contains caffeine. Metformin can decrease how quickly the body breaks down caffeine. Taking green tea along with metformin might increase the effects and side effects of caffeine.
Methoxsalen (Oxsoralen) interacts with GREEN TEA
Green tea contains caffeine. Methoxsalen can decrease how quickly the body breaks down caffeine. Taking caffeine along with methoxsalen might increase the risk of caffeine side effects such as jitteriness, headache, fast heartbeat, and others.
Phenothiazines interacts with GREEN TEA
Green tea contains caffeine. Phenothiazines can decrease how quickly the body breaks down caffeine. Taking phenothiazines along with caffeine might increase the effects and side effects of caffeine.
Tiagabine (Gabitril) interacts with GREEN TEA
Green tea contains caffeine. Taking caffeine over a long time period along with tiagabine can increase the amount of tiagabine in the body. This might increase the effects and side effects of tiagabine.
Ticlopidine (Ticlid) interacts with GREEN TEA
Ticlopidine can decrease how quickly the body gets rid of caffeine. Taking green tea along with ticlopidine might increase the effects and side effects of caffeine, including jitteriness, hyperactivity, irritability, and others.
