Pu-erh tea is used for improving mental alertness and sharp thinking. It is also used for high cholesterol, obesity, and diabetes, but there is no good scientific evidence to support these uses.
How does it work ?
There is interest in using pu-erh tea for lowering cholesterol because, unlike other teas, it contains small amounts of a chemical called lovastatin. Lovastatin is a prescription medicine used for lowering cholesterol. Investigators think that bacteria that sometimes contaminate pu-erh tea may somehow make the lovastatin in the course of their normal life cycle. Animal research suggests that pu-erh tea might lower certain blood fats called triglycerides as well as total and "bad" low-density lipoprotein (LDL) cholesterol. It might also raise "good" high density lipoprotein (HDL) cholesterol. But it isn't known if pu-erh tea has these benefits in humans.
Uses & Effectiveness ?
Possibly Effective for
Insufficient Evidence for
Pu-erh tea is POSSIBLY UNSAFE when taken for a long time or in high doses (more than 4 cups per day). Drinking large amounts of pu-erh tea might cause side effects due to its caffeine content. These side effects including headache, nervousness, sleep problems, vomiting, diarrhea, irritability, irregular heartbeat, tremor, heartburn, dizziness, ringing in the ears, convulsions, and confusion. Also, people who drink a lot of pu-erh tea every day may need to drink more tea to get the same effects. They may also become "dependent" on tea to the point that they develop withdrawal symptoms if they suddenly stop drinking it.
Special Precautions and Warnings
Pu-erh tea is POSSIBLY UNSAFE when taken for a long time or in high doses (more than 4 cups per day). Drinking large amounts of pu-erh tea might cause side effects due to its caffeine content. These side effects including headache, nervousness, sleep problems, vomiting, diarrhea, irritability, irregular heartbeat, tremor, heartburn, dizziness, ringing in the ears, convulsions, and confusion. Also, people who drink a lot of pu-erh tea every day may need to drink more tea to get the same effects. They may also become "dependent" on tea to the point that they develop withdrawal symptoms if they suddenly stop drinking it. Pregnancy and breast-feeding: If you are pregnant or breast-feeding, drinking pu-erh tea is POSSIBLY SAFE in amounts of 3 cups per day or less. This amount of tea provides about 300 mg of caffeine. Drinking more than this amount during pregnancy is POSSIBLY UNSAFE and has been linked to an increased risk of miscarriage and other problems. Also, caffeine can pass into breast milk, so nursing mothers should closely monitor caffeine intake to make sure it is on the low side (1-2 cups per day). High intake of caffeine by nursing mothers can cause sleep disturbances, irritability, and increased bowel activity in breast-fed infants.
Children: Pu-erh tea is POSSIBLY SAFE when taken by mouth by children in amounts commonly found in foods and beverages.
Anxiety disorders: The caffeine in pu-erh tea might make these conditions worse.
Bleeding disorders: There is concern that pu-erh tea might make bleeding disorders worse because of its caffeine content. Use pu-erh tea with care if you have a bleeding disorder.
Heart conditions: The caffeine in pu-erh tea can cause irregular heartbeat in some people. Use pu-erh tea with caution if you have a heart condition.
Diabetes: Some research suggests that caffeine may affect the way the body uses sugar and might make diabetes worse. But the effect of caffeine-containing herbs and beverages such as pu-erh tea has not been studied. If you have diabetes, use pu-erh tea with caution.
Diarrhea: Pu-erh tea contains caffeine. The caffeine in pu-erh tea, especially when taken in large amounts, can worsen diarrhea.
Irritable bowel syndrome (IBS): Pu-erh tea contains caffeine. The caffeine in pu-erh tea, especially when taken in large amounts, might worsen the diarrhea some people have with IBS.
An eye disorder called glaucoma: The caffeine in pu-erh tea might increase the pressure inside the eye.
High blood pressure: The caffeine in pu-erh tea might increase blood pressure in people with high blood pressure. However, this effect might be less in people who use caffeine regularly.
Weak bones (osteoporosis): The caffeine in pu-erh tea can increase the amount of calcium that is flushed out in the urine. If you have osteoporosis or low bone density, don't drink more than 3 cups of pu-erh tea per day. It's also a good idea to get extra calcium to make up for the amount that may be lost in the urine. If you are generally healthy and getting enough calcium from your food and supplements, taking up to 400 mg of caffeine daily (about 4 cups of pu-erh tea) doesn't seem to increase the risk of getting osteoporosis. Postmenopausal women with an inherited disorder that keeps them from processing vitamin D normally should use caffeine with caution.
Amphetamines interacts with PU-ERH TEA
Stimulant drugs such as amphetamines speed up the nervous system. By speeding up the nervous system, stimulant medications can make you feel jittery and increase your heart rate. The caffeine in pu-erh tea might also speed up the nervous system. Taking pu-erh tea along with stimulant drugs might cause serious problems including increased heart rate and high blood pressure. Avoid taking stimulant drugs along with pu-erh tea.
Cimetidine (Tagamet) interacts with PU-ERH TEA
Pu-erh tea contains caffeine. The body breaks down caffeine to get rid of it. Cimetidine (Tagamet) can decrease how quickly your body breaks down caffeine. Taking cimetidine (Tagamet) along with pu-erh tea might increase the chance of caffeine side effects including jitteriness, headache, fast heartbeat, and others.
Cocaine interacts with PU-ERH TEA
Stimulant drugs such as cocaine speed up the nervous system. By speeding up the nervous system, stimulant medications can make you feel jittery and increase your heart rate. The caffeine in pu-erh tea might also speed up the nervous system. Taking pu-erh tea along with stimulant drugs might cause serious problems including increased heart rate and high blood pressure. Avoid taking stimulant drugs along with pu-erh tea.
Ephedrine interacts with PU-ERH TEA
Stimulant drugs speed up the nervous system. Caffeine (contained in pu-erh tea) and ephedrine are both stimulant drugs. Taking caffeine along with ephedrine might cause too much stimulation and sometimes serious side effects and heart problems. Do not take caffeine-containing products and ephedrine at the same time.
Do not take this combination
Adenosine (Adenocard) interacts with PU-ERH TEA
Pu-erh tea contains caffeine. The caffeine in pu-erh tea might block the effects of adenosine (Adenocard). Adenosine (Adenocard) is often used by doctors to do a test on the heart. This test is called a cardiac stress test. Stop consuming pu-erh tea or other caffeine-containing products at least 24 hours before a cardiac stress test.
Clozapine (Clozaril) interacts with PU-ERH TEA
The body breaks down clozapine (Clozaril) to get rid of it. The caffeine in pu-erh tea seems to decrease how quickly the body breaks down clozapine (Clozaril). Taking pu-erh tea along with clozapine (Clozaril) can increase the effects and side effects of clozapine (Clozaril).
Dipyridamole (Persantine) interacts with PU-ERH TEA
Pu-erh tea contains caffeine. The caffeine in pu-erh tea might block the effects of dipyridamole (Persantine). Dipyridamole (Persantine) is often used by doctors to do a test on the heart. This test is called a cardiac stress test. Stop consuming pu-erh tea or other caffeine-containing products at least 24 hours before a cardiac stress test.
Disulfiram (Antabuse) interacts with PU-ERH TEA
The body breaks down caffeine to get rid of it. Disulfiram (Antabuse) can decrease how quickly the body gets rid of caffeine. Taking pu-erh tea (which contains caffeine) along with disulfiram (Antabuse) might increase the effects and side effects of caffeine including jitteriness, hyperactivity, irritability, and others.
Estrogens interacts with PU-ERH TEA
The body breaks down the caffeine in pu-erh tea to get rid of it. Estrogens can decrease how quickly the body breaks down caffeine. Taking pu-erh tea along with estrogens can cause jitteriness, headache, fast heartbeat, and other side effects. If you take estrogens limit your caffeine intake.
Some estrogen pills include conjugated equine estrogens (Premarin), ethinyl estradiol, estradiol, and others.
Fluvoxamine (Luvox) interacts with PU-ERH TEA
The body breaks down the caffeine in pu-erh tea to get rid of it. Fluvoxamine (Luvox) can decrease how quickly the body breaks down caffeine. Taking pu-erh tea along with fluvoxamine (Luvox) might cause too much caffeine in the body, and increase the effects and side effects of caffeine.
Lithium interacts with PU-ERH TEA
Your body naturally gets rid of lithium. The caffeine in pu-erh tea can increase how quickly your body gets rid of lithium. If you take products that contain caffeine and you take lithium, stop taking caffeine products slowly. Stopping pu-erh tea too quickly can increase the side effects of lithium.
Medications for asthma (Beta-adrenergic agonists) interacts with PU-ERH TEA
Pu-erh 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.
Some medications for asthma include albuterol (Proventil, Ventolin, Volmax), metaproterenol (Alupent), terbutaline (Bricanyl, Brethine), and isoproterenol (Isuprel).
Medications for depression (MAOIs) interacts with PU-ERH TEA
Pu-erh tea contains caffeine. Caffeine can stimulate the body. Some medications used for depression can also stimulate the body. Taking pu-erh tea with these medications used for depression might cause serious side effects including fast heartbeat, high blood pressure, nervousness, and others.
Some of these medications used for depression include phenelzine (Nardil), tranylcypromine (Parnate), and others.
Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs) interacts with PU-ERH TEA
Pu-erh tea contains caffeine. Caffeine might slow blood clotting. Taking pu-erh tea along with medications that also slow clotting might increase the chances of bruising and bleeding.
Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.
Nicotine interacts with PU-ERH TEA
Stimulant drugs such as nicotine speed up the nervous system. By speeding up the nervous system, stimulant medications can make you feel jittery and increase your heart rate. The caffeine in pu-erh tea might also speed up the nervous system. Taking pu-erh 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 PU-ERH TEA
The stimulant effects of the caffeine in pu-erh tea can block the sleep-producing effects of pentobarbital (Nembutal).
Phenylpropanolamine interacts with PU-ERH TEA
The caffeine in pu-erh tea can stimulate the body. Phenylpropanolamine can also stimulate the body. Taking pu-erh tea along with phenylpropanolamine might cause too much stimulation and increase heartbeat, blood pressure, and cause nervousness.
Riluzole (Rilutek) interacts with PU-ERH TEA
The body breaks down riluzole (Rilutek) to get rid of it. Taking pu-erh tea can decrease how fast the body breaks down riluzole (Rilutek) and increase the effects and side effects of riluzole.
Theophylline interacts with PU-ERH TEA
Pu-erh tea contains caffeine. Caffeine works similarly to theophylline. Caffeine can also decrease how quickly the body gets rid of theophylline. Taking pu-erh tea along with theophylline might increase the effects and side effects of theophylline.
Verapamil (Calan, others) interacts with PU-ERH TEA
The body breaks down the caffeine in pu-erh tea to get rid of it. Verapamil (Calan, Covera, Isoptin, Verelan) can decrease how quickly the body gets rid of caffeine. Taking pu-erh tea along with verapamil (Calan, Covera, Isoptin, Verelan) can increase the risk of caffeine side effects including jitteriness, headache, and an increased heartbeat.
Be cautious with this combination
Alcohol (Ethanol) interacts with PU-ERH TEA
The body breaks down the caffeine in pu-erh tea to get rid of it. Alcohol can decrease how quickly the body breaks down caffeine. Taking pu-erh tea along with alcohol might cause too much caffeine in the bloodstream and caffeine side effects including jitteriness, headache, and fast heartbeat.
Antibiotics (Quinolone antibiotics) interacts with PU-ERH TEA
The body breaks down caffeine from pu-erh tea to get rid of it. Some drugs can decrease how quickly the body breaks down caffeine. Taking these drugs along with pu-erh tea might increase the risk of side effects including jitteriness, headache, increased heart rate, and others.
Some antibiotics that decrease how quickly the body breaks down caffeine include ciprofloxacin (Cipro), gemifloxacin (Factive), levofloxacin (Levaquin), moxifloxacin (Avelox), ofloxacin (Floxin), and others.
Birth control pills (Contraceptive drugs) interacts with PU-ERH TEA
The body breaks down the caffeine in pu-erh tea to get rid of it. Birth control pills can decrease how quickly the body breaks down caffeine. Taking pu-erh tea along with birth control pills can cause jitteriness, headache, fast heartbeat, and other side effects.
Some birth control pills include ethinyl estradiol and levonorgestrel (Triphasil), ethinyl estradiol and norethindrone (Ortho-Novum 1/35, Ortho-Novum 7/7/7), and others.
Fluconazole (Diflucan) interacts with PU-ERH TEA
Pu-erh tea contains caffeine. The body breaks down caffeine to get rid of it. Fluconazole (Diflucan) might decrease how quickly the body gets rid of caffeine. Taking pu-erh tea along with fluconazole (Diflucan) might increase the risk of caffeine side effects such as nervousness, anxiety, and insomnia.
Medications for diabetes (Antidiabetes drugs) interacts with PU-ERH TEA
Pu-erh tea might increase blood sugar. Diabetes medications are used to lower blood sugar. By increasing blood sugar, pu-erh tea might decrease the effectiveness of diabetes medications. Monitor your blood sugar closely. The dose of your diabetes medication might need to be changed.
Some medications used for diabetes include glimepiride (Amaryl), glyburide (Diabeta, Glynase PresTab, Micronase), insulin, pioglitazone (Actos), rosiglitazone (Avandia), chlorpropamide (Diabinese), glipizide (Glucotrol), tolbutamide (Orinase), and others.
Mexiletine (Mexitil) interacts with PU-ERH TEA
Pu-erh tea contains caffeine. The body breaks down caffeine to get rid of it. Mexiletine (Mexitil) can decrease how quickly the body breaks down caffeine. Taking mexiletine (Mexitil) along with pu-erh tea might increase the caffeine effects and side effects of pu-erh tea.
Terbinafine (Lamisil) interacts with PU-ERH TEA
The body breaks down caffeine (contained in pu-erh tea) to get rid of it. Terbinafine (Lamisil) can decrease how fast the body gets rid of caffeine and increase the risk of side effects including jitteriness, headache, increased heartbeat, and other effects.
Be watchful with this combination
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