Green Tea + Levonorgestrel, Ethinyl Estradiol
Levonorgestrel, Ethinyl Estradiol brand names: Nordette, Logynon ED, Microgynon 30, Ovranette, Trinordiol, and others.
Levonorgestrel, Ethinyl Estradiol falls into 6 drug categories that Green Tea can interact with; the most serious is rated moderate. Theoretically, concomitant use might have additive adverse hepatotoxic effects.
Read the full interaction reportGreen Tea and Levonorgestrel, Ethinyl Estradiol
These two interact in 6 distinct ways. Each one is explained separately below.
Why Are There 6 Interactions?
Green Tea interacts with whole categories of medication. Levonorgestrel, Ethinyl Estradiol falls into 6 of those categories, so it can interact with Green Tea in 6 different ways. We’ve listed each one below — your overall risk is driven by the most serious of them (Moderate).
HEPATOTOXIC DRUGS
1 of 6Why this applies to Levonorgestrel, Ethinyl Estradiol
Levonorgestrel, Ethinyl Estradiol falls under HEPATOTOXIC DRUGS — the group Green Tea interacts with.
Green tea extract supplements have been linked to several cases of hepatotoxicity and might have additive hepatotoxic effects with other drugs..
Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans..
Here's the gist with your birth control pill (the levonorgestrel and ethinyl estradiol combo): both estrogen-containing pills and high-dose green tea extract are processed by the liver, and on rare occasions each one can stress it. The concern is purely additive, meaning theoretically the two together could be a little harder on the liver than either alone. This isn't about your pill working better or worse, it's just about liver wear and tear.
Honestly, the evidence here is thin (mostly a few scattered reports tied to concentrated extract pills, not your daily cup of tea). Drinking green tea normally is very unlikely to matter. If you take strong green tea extract supplements, mention it to your pharmacist or doctor, and flag any yellowing skin, dark urine, or belly pain.
- Bonkovsky HL. Hepatotoxicity associated with supplements containing Chinese green tea (Camellia sinensis). Ann Intern Med 2006;144:68-71.
- Gloro R, Hourmand-Ollivier I, Mosquet B, et al. Fulminant hepatitis during self-medication with hydroalcoholic extract of green tea. Eur J Gastroenterol Hepatol 2005;17:1135-7. PubMed
- Jimenez-Saenz M, Martinez-Sanchez, MDC. Acute hepatitis associated with the use of green tea infusions. J Hepatol 2006;44:616-9. PubMed
- Javaid, A. and Bonkovsky, H. L. Hepatotoxicity due to extracts of Chinese green tea (Camellia sinensis): a growing concern. J Hepatol 2006;45(2):334-335. PubMed
- Martinez-Sierra, C., Rendon, Unceta P., and Martin, Herrera L. [Acute hepatitis after green tea ingestion]. Med Clin (Barc.) 6-17-2006;127(3):119.
- Molinari, M., Watt, K. D., Kruszyna, T., Nelson, R., Walsh, M., Huang, W. Y., Nashan, B., and Peltekian, K. Acute liver failure induced by green tea extracts: case report and review of the literature. Liver Transpl. 2006;12(12):1892-1895. PubMed
- Federico, A., Tiso, A., and Loguercio, C. A case of hepatotoxicity caused by green tea. Free Radic.Biol Med 8-1-2007;43(3):474. PubMed
- Sarma, D. N., Barrett, M. L., Chavez, M. L., Gardiner, P., Ko, R., Mahady, G. B., Marles, R. J., Pellicore, L. S., Giancaspro, G. I., and Low, Dog T. Safety of green tea extracts : a systematic review by the US Pharmacopeia. Drug Saf 2008;31(6):469-484. PubMed
- Rohde, J., Jacobsen, C., and Kromann-Andersen, H. [Toxic hepatitis triggered by green tea]. Ugeskr.Laeger 1-17-2011;173(3):205-206.
- Yellapu, R. K., Mittal, V., Grewal, P., Fiel, M., and Schiano, T. Acute liver failure caused by 'fat burners' and dietary supplements: a case report and literature review. Can.J.Gastroenterol. 2011;25(3):157-160. PubMed
- Health Canada. Health Product Info Watch. October 2016; 5-6. Available at: http://www.hc-sc.gc.ca/dhp-mps/medeff/bulletin/hpiw-ivps_2016-10-eng.php#a15.
- Oketch-Rabah HA, Roe AL, Rider CV, et al. United States Pharmacopeia (USP) comprehensive review of the hepatotoxicity of green tea extracts. Toxicol Rep. 2020;7:386-402. PubMed
- Pochet S, Lechon AS, Lescrainier C, et al. Herb-anticancer drug interactions in real life based on VigiBase, the WHO global database. Sci Rep 2022;12(1):14178. PubMed
CYTOCHROME P450 1A2 (CYP1A2) INHIBITORS
2 of 6Levonorgestrel, Ethinyl Estradiol also falls under CYTOCHROME P450 1A2 (CYP1A2) INHIBITORS.
Green tea contains caffeine. Caffeine is metabolized by cytochrome P450 1A2 (CYP1A2),. Theoretically, drugs that inhibit CYP1A2 may decrease the clearance rate of caffeine from green tea and increase caffeine levels.
Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
Here's a small twist worth understanding. Your birth control pill (Microgynon, Ovranette, and similar combos of ethinyl estradiol and levonorgestrel) can gently slow down the enzyme called CYP1A2, which is the same enzyme your body uses to clear caffeine. Green tea naturally contains caffeine, so in theory the pill may let that caffeine linger a bit longer than usual.
In real life, that might mean you feel the caffeine a little more strongly: jitteriness, a racing heart, or trouble sleeping if you have a lot. This is a theoretical concern based on how these compounds behave, not something proven in studies, and a normal cup or two of green tea isn't likely to cause trouble. If you notice you're extra wired, just ease up on the caffeine, and feel free to ask me anytime.
- Weisburger JH. Tea and health: the underlying mechanisms. Proc Soc Exp Biol Med 1999;220:271-5. PubMed
- Hagg S, Spigset O, Mjorndal T, Dahlqvist R. Effect of caffeine on clozapine pharmacokinetics in healthy volunteers. Br J Clin Pharmacol 2000;49:59-63. PubMed
- Carrillo JA, Benitez J. Clinically significant pharmacokinetic interactions between dietary caffeine and medications. Clin Pharmacokinet 2000;39:127-53. PubMed
- Kot, M. and Daniel, W. A. Effect of diethyldithiocarbamate (DDC) and ticlopidine on CYP1A2 activity and caffeine metabolism: an in vitro comparative study with human cDNA-expressed CYP1A2 and liver microsomes. Pharmacol Rep. 2009;61(6):1216-1220. PubMed
- Wojcikowski, J. and Daniel, W. A. Perazine at therapeutic drug concentrations inhibits human cytochrome P450 isoenzyme 1A2 (CYP1A2) and caffeine metabolism--an in vitro study. Pharmacol Rep. 2009;61(5):851-858. PubMed
- Wang, X. and Yeung, J. H. Effects of the aqueous extract from Salvia miltiorrhiza Bunge on caffeine pharmacokinetics and liver microsomal CYP1A2 activity in humans and rats. J Pharm Pharmacol 2010;62(8):1077-1083.
- Kot M, Daniel WA. Caffeine as a marker substrate for testing cytochrome P450 activity in human and rat. Pharmacol Rep 2008;60:789-97.
- Kjaerstad MB, Nielsen F, Nohr-Jensen L, et al. Systemic uptake of miconazole during vaginal suppository use and effect on CYP1A2 and CYP3A4 associated enzyme activities in women. Eur J Clin Pharmacol 2010;66:1189-97. PubMed
- Goh BC, Reddy NJ, Dandamudi UB, et al. An evaluation of the drug interaction potential of pazopanib, an oral vascular endothelial growth factor receptor tyrosine kinase inhibitor, using a modified Cooperstown 5+1 cocktail in patients with advanced solid t
- Chen Y, Kang Z, Yan J, et al. Liu wei di huang wan, a well-known traditional Chinese medicine induces CYP1A2 while suppressing CYP2A6 and N-acetyltransferase 2 acivities in man. J Ethnopharmacol 2010;132:213-8.
- Suzuki S, Murayama Y, Sugiyama E, et al. Estimating pediatric doses of drugs metabolized by cytochrome P450 (CYP) isozymes, based on physiological liver development and serum protein levels. Yakugaku Zasshi 2010;130:613-20. PubMed
- Chien CF, Wu YT, Lee WC, et al. Herb-drug interaction of Andrographis paniculata extract and andrographolide on the pharmacokinetics of theophylline in rats. Chem Biol Interact 2010;184:458-65. PubMed
- Mills BM, Zaya MJ, Walters RR, et al. Current cytochrome P450 phenotyping methods applied to metabolic drug -drug interaction prediction in dogs. Drug Metab Dispos 2010;38:396-404. PubMed
- Turpault S, Brian W, Van Horn R, et al. Pharmacokinetic assessment of a five-probe cocktail for CYPs 1A2, 2C9, 2C19, 2D6, and 3A. Br J Clin Pharmacol 2009;68:928-35. PubMed
- Filimonova AA, Ziganshina LE, Ziganshin AU, Chichirov AA. On the possibility of patient phenotyping on the basis of cytochrome p-450 1A2 isoenzyme activity using caffeine as the test substrate. Eksp Klin Farmakol 2009;72:61-5.
- Jenkins J, Williams D, Deng Y, et al. Eltrombopag, an oral thrombopoietin receptor agonist, has no impact on the pharmacokinetic profile of probe drugs for cytochrome P450 isoenzymes CYP3A4, CYP1A2, CYP2C9 and CYP2C19 in healthy men: a cocktail analysis.
- Perera, V., Gross, A. S., and McLachlan, A. J. Caffeine and paraxanthine HPLC assay for CYP1A2 phenotype assessment using saliva and plasma. Biomed.Chromatogr. 2010;24(10):1136-1144. PubMed
- Izzo, A. A. and Ernst, E. Interactions between herbal medicines and prescribed drugs: an updated systematic review. Drugs 2009;69(13):1777-1798. PubMed
ESTROGENS
3 of 6Levonorgestrel, Ethinyl Estradiol also falls under ESTROGENS.
Green tea contains caffeine. Estrogen inhibits caffeine metabolism.
Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports..
Here's a twist worth knowing if you're on your birth control pill (Microgynon, Ovranette, and similar combos) and you enjoy green tea. The interaction here actually runs the other way around. The estrogen in your pill (ethinyl estradiol) can slow down how your body clears caffeine, and green tea naturally contains caffeine. So the pill makes the caffeine hang around longer, not the reverse.
In plain terms, your usual cup of green tea may hit you a little harder than expected. Think jitteriness, a racing heart, trouble sleeping, or feeling wired. This is considered a moderate, fairly likely effect, but it's easy to manage. You don't need to give up green tea. If you notice caffeine bothering you more than usual, simply cut back a bit, and chat with your pharmacist if you have questions.
- Pollock BG, Wylie M, Stack JA, et al. Inhibition of caffeine metabolism by estrogen replacement therapy in postmenopausal women. J Clin Pharmacol 1999;39:936-40. PubMed
P-GLYCOPROTEIN SUBSTRATES
4 of 6Levonorgestrel, Ethinyl Estradiol also falls under P-GLYCOPROTEIN SUBSTRATES.
In vitro research and case reports suggest that green tea inhibits drug efflux by P-gp, potentially increasing serum levels of P-gp substrates. Case reports from the World Health Organization (WHO) adverse drug reaction database describe increased toxicity in patients taking green tea and certain P-gp substrates.
Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
Your birth control pill combines two active hormones, levonorgestrel and ethinyl estradiol, that don't need to be turned on in the body. The idea here is that green tea may gently block a transporter called P-glycoprotein, which can move drugs out of your system. If that pump slows down, a little more hormone could hang around, which in theory might mean more of the usual estrogen-type side effects like nausea, breast tenderness, headaches, or bloating.
Honestly, this is built on lab studies and a few scattered case reports, so it's weak evidence. A normal cup or two of green tea is very unlikely to cause trouble. Concentrated green tea extract pills are the bigger question mark. If you take those regularly, just give your pharmacist or doctor a heads-up.
- Pochet S, Lechon AS, Lescrainier C, et al. Herb-anticancer drug interactions in real life based on VigiBase, the WHO global database. Sci Rep 2022;12(1):14178. PubMed
CONTRACEPTIVE DRUGS
5 of 6Levonorgestrel, Ethinyl Estradiol also falls under CONTRACEPTIVE DRUGS.
Green tea contains caffeine. Oral contraceptives can decrease caffeine clearance by 40% to 65%.
Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports..
Here's a fun twist on this one: it's not your birth control pill (the levonorgestrel and ethinyl estradiol combo) that gets affected. Instead, it's the caffeine in your green tea. The estrogen in your pill slows down how fast your body clears caffeine, by roughly 40% to 65%. So that same cup of green tea can hang around longer and hit a bit harder than usual.
In real life, that might mean feeling more jittery, having trouble sleeping, a racing heart, or an upset stomach, especially if you drink several cups or use concentrated green tea extracts. A normal cup or two is usually no big deal. If you notice the buzz feels stronger than it used to, just cut back a little or switch to decaf, and chat with your pharmacist if you have questions.
- Haller CA, Jacob P 3rd, Benowitz NL. Pharmacology of ephedra alkaloids and caffeine after single-dose dietary supplement use. Clin Pharmacol Ther 2002;71:421-32. PubMed
CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES
6 of 6Levonorgestrel, Ethinyl Estradiol also falls under CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES.
In vitro and in vivo research suggests that green tea can inhibit intestinal CYP3A and induce hepatic CYP3A4 enzymes. However, this effect is unlikely to be clinically significant, as green tea does not appear to affect CYP3A4 activity in humans.
Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans..
Good news here: your birth control pill, which combines levonorgestrel and ethinyl estradiol, is processed in part by a liver enzyme called CYP3A4. Green tea has been shown in lab and test-tube studies to nudge this enzyme a little, both speeding it up in the liver and slowing it in the gut. On paper that could change hormone levels, but in actual human studies green tea doesn't meaningfully affect this pathway.
So in everyday terms, drinking green tea is very unlikely to weaken your pill or cause spotting, mood changes, or breakthrough bleeding. The evidence is weak and based on lab work, not people. If you're using concentrated green tea extract pills, just mention it to your pharmacist to be safe.
- Donovan JL, Chavin KD, Devane CL, et al. Green tea (Camellia sinensis) extract does not alter cytochrome P450 3A4 or 2D6 activity in healthy volunteers. Drug Metab Dispos 2004;32:906-8. PubMed
- Nishikawa, M., Ariyoshi, N., Kotani, A., Ishii, I., Nakamura, H., Nakasa, H., Ida, M., Nakamura, H., Kimura, N., Kimura, M., Hasegawa, A., Kusu, F., Ohmori, S., Nakazawa, K., and Kitada, M. Effects of continuous ingestion of green tea or grape seed extrac
- Chow, H. H., Hakim, I. A., Vining, D. R., Crowell, J. A., Cordova, C. A., Chew, W. M., Xu, M. J., Hsu, C. H., Ranger-Moore, J., and Alberts, D. S. Effects of repeated green tea catechin administration on human cytochrome P450 activity. Cancer Epidemiol.B PubMed
- Engdal, S. and Nilsen, O. G. In vitro inhibition of CYP3A4 by herbal remedies frequently used by cancer patients. Phytother.Res. 2009;23(7):906-912.
- Schönthal AH. Adverse effects of concentrated green tea extracts. Mol Nutr Food Res. 2011 Jun;55(6):874-85. PubMed
What These Ratings Mean
Every interaction above is graded three ways — here’s the key to each label.
Clinically significant. Avoid the combination, or use only under close professional supervision.
Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.
Generally not serious. Be aware of it and mention it to your pharmacist.
- LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
- ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
- PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
- UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
- AHigh-quality meta-analysis (quantitative systematic review).
- BCase-control study.
- CConsensus.
- DAnecdotal evidence.
These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.
Green Tea Also Interacts With Other Medications
Green Tea has 13 major, 904 moderate, 375 minor known drug interactions in our database — the Levonorgestrel, Ethinyl Estradiol one above is among them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Green Tea
We haven’t checked that one against Green Tea yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Green Tea. Pick one to open its full report.
Questions About Green Tea or Levonorgestrel, Ethinyl Estradiol
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Green Tea or Levonorgestrel, Ethinyl Estradiol, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Levonorgestrel, Ethinyl Estradiol
This page covers Green Tea only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Levonorgestrel, Ethinyl Estradiol page lists 241 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Beer (major), Grapefruit (major), Siberian Cocklebur (major) and St. John's Wort (major).
By severity: 6 major · 197 moderate · 38 minor.
Taking Green Tea as Part of a Dietary Supplement Product? Check It for Interactions
We hold 9,084 real supplement products containing Green Tea, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Green Tea. Your product may carry other ingredients that interact with Levonorgestrel, Ethinyl Estradiol too, on top of Green Tea — and those would not show on this page. Find your product and we’ll check every ingredient on its label:
Where Green Tea and Levonorgestrel, Ethinyl Estradiol Sit Against Everything Else
Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.
#25 of 1,452 supplements looked up here in the last 7 days
#1,304 of 2,830 medications looked up here in the last 7 days
Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.
About Green Tea
What is Green Tea?
- Antioxidant support
- Weight loss
- Heart health
- Mental alertness
- Cancer risk reduction
Green tea is a popular beverage rich in antioxidants called catechins, and drinking it in normal amounts is considered safe for most people. Concentrated green tea extracts are a different story—they may help modestly with weight or heart health for some, but high doses have been linked to rare liver problems. Talk to your pharmacist or doctor before taking green tea supplements, especially if you have liver concerns or are pregnant.
Other Drugs & Green Tea
Browse every other medication we’ve checked against Green Tea — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
13 interactions
- Nadolol ›
- Atorvastatin ›
- Atorvastatin Calcium ›
- Carbetapentane Tannate, Chlorpheniramine Tannate, Ephedrine Tannate, Phenylephrine Tannate ›
- Ephedrine, Guaifenesin (otc Drug) ›
- Ephedrine, Hydroxyzine, Theophylline ›
- Ephedrine, Phenobarbital, Potassium Iodide, Theophylline ›
- Aminophylline, Amobarbital, Ephedrine ›
- Bendroflumethiazide, Nadolol ›
- Dyphylline, Ephedrine, Guaifenesin, Phenobarbital ›
- Ephedrine, Guaifenesin, Phenobarbital, Theophylline ›
- Ephedrine, Phenobarbital, Theophylline ›
- Ezetimibe, Atorvastatin ›
904 interactions
- Diclofenac Sodium ›
- Diltiazem ›
- Theophylline ›
- Nifedipine ›
- Ibuprofen ›
- Salbutamol Sulfate ›
- Phentermine ›
- Aspirin ›
- Hydrocortisone ›
- Methylphenidate ›
- Naproxen ›
- Doxycycline ›
- Erythromycin ›
- Estradiol ›
- Minocycline ›
- Tetracycline ›
- Ranitidine ›
- Amoxicillin ›
- Hydrochlorothiazide ›
- Norethindrone ›
- Testosterone ›
- Verapamil ›
- Fenofibrate ›
- Levonorgestrel ›
- Phenylpropanolamine ›
- Prednisone ›
- Quinidine ›
- Cyclosporine ›
- Dexamethasone ›
- Glyburide ›
- Methyltestosterone ›
- Ciprofloxacin ›
- Colchicine ›
- Nicotine ›
- Phenytoin ›
- Prednisolone ›
- Triamcinolone ›
- Allopurinol ›
- Apomorphine ›
- Carbamazepine ›
- Diclofenac Potassium ›
- Dipyridamole ›
- Doxorubicin ›
- Morphine Sulfate ›
- Phenylephrine ›
- Pseudoephedrine ›
- Acetaminophen ›
- Albuterol ›
- Amphetamine ›
- Conjugated Estrogens ›
- Diethylpropion ›
- Everolimus ›
- Ivermectin ›
- Ketoprofen ›
- Methotrexate ›
- Nitrofurantoin ›
- Ofloxacin ›
- Propoxyphene ›
- Rifampin ›
- Selegiline ›
Showing 60 of 904 moderate interactions — see all 904 on the Green Tea page.
375 interactions
- Insulin (rdna) ›
- Lidocaine ›
- Insulin (pork) ›
- Triazolam ›
- Zopiclone ›
- Fentanyl ›
- Oxybutynin ›
- Tacrolimus ›
- Temazepam ›
- Budesonide ›
- Clindamycin ›
- Dextromethorphan ›
- Fluticasone ›
- Insulin (human) ›
- Miconazole ›
- Buprenorphine ›
- Diazepam ›
- Ivabradine ›
- Medroxyprogesterone ›
- Medroxyprogesterone Acetate ›
- Aripiprazole ›
- Ciclesonide ›
- Clonazepam ›
- Cyclobenzaprine ›
- Fluphenazine ›
- Fluticasone Propionate ›
- Hydroxyzine ›
- Insulin Glargine ›
- Midazolam ›
- Nicardipine ›
- Pantoprazole ›
- Progesterone (prescription Drug) ›
- Semaglutide ›
- Tramadol ›
- Zolpidem ›
- Almotriptan ›
- Alprazolam ›
- Aprepitant ›
- Aripiprazole Lauroxil ›
- Budenoside ›
- Buprenorphine Hydrochloride ›
- Busulfan ›
- Cabazitaxel ›
- Chlorpheniramine ›
- Chlorpromazine ›
- Clomipramine ›
- Dasatinib ›
- Dexchlorpheniramine ›
- Dihydroergotamine ›
- Disopyramide Phosphate ›
- Dronabinol ›
- Ergotamine Tartrate (prescription Drug) ›
- Exenatide ›
- Felodipine ›
- Finasteride ›
- Fluticasone Furoate ›
- Fosamprenavir ›
- Fosaprepitant ›
- Galantamine ›
- Glipizide ›
Showing 60 of 375 minor interactions — see all 375 on the Green Tea page.
No interaction 1,537 drugs checked — show the list
We also checked Green Tea against these medications and found no known interaction in our sources. Open any page to confirm.
- Levothyroxine ›
- Metoprolol ›
- Docusate ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Propranolol ›
- Isotretinoin ›
- Bendamustine ›
- Bupropion ›
- Fluoxetine ›
- Acyclovir ›
- Azithromycin ›
- Pregabalin ›
- Lamotrigine ›
- Gabapentin ›
- Levothyroxine, Liothyronine ›
- Methylene Blue ›
- Bisoprolol ›
- Candesartan Cilexetil ›
- Acetaminophen, Dextromethorphan, Doxylamine ›
- Cephalexin ›
- Cyclopentolate ›
- Ezetimibe ›
- Roxithromycin ›
- Levetiracetam ›
- Carbidopa, Levodopa ›
- Phentermine, Topiramate ›
- Levodopa ›
- Thyroid Hormone ›
- Levothyroxine Sodium ›
- Pizotifen ›
- Valsartan ›
- Nortriptyline ›
- Daptomycin ›
- Venlafaxine ›
- Hexobarbitone ›
- Cefaclor ›
- Mitomycin ›
- Pegunigalsidase Alfa-iwxj ›
- Flutemetamol F-18 ›
- Magnesium Hydroxide (otc Drug) ›
- Atenolol ›
- Minoxidil ›
- Bentoquatam ›
- Alglucosidase Alpha ›
- Factor 7a ›
- Vancomycin ›
- Tocainide ›
- Bupivacaine, Meloxicam ›
- Azelaic Acid ›
- Bleomycin ›
- Ribavirin Aerosol ›
- Hydroxychloroquine ›
- Ropinirole ›
- Alginic Acid, Aluminum Hydroxide ›
- Casanthranol, Docusate ›
- Telmisartan ›
- Lorazepam ›
- Rocuronium ›
Showing the 60 most looked-up of 1,537 medications checked with no known interaction — see the full Green Tea list.
Sources & How We Checked
Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference for vitamins, herbs and supplements — the basis for our interaction data.
- MedlinePlus, U.S. National Library of Medicine — NIH consumer drug information, used for the medication overviews.
- NIH Dietary Supplement Label Database (DSLD) — Official supplement product labels.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Levonorgestrel, Ethinyl Estradiol Is Linked to Lower Levels of 7 Nutrients
Natural Medicines records Levonorgestrel, Ethinyl Estradiol as a medicine that can lower these. This is not an interaction with Green Tea — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Levonorgestrel, Ethinyl Estradiol nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Green Tea and Levonorgestrel, Ethinyl Estradiol Together: Common Questions
Can you take Green Tea with Levonorgestrel, Ethinyl Estradiol?
Why are there 6 interactions listed for Green Tea and Levonorgestrel, Ethinyl Estradiol?
How serious is the Green Tea and Levonorgestrel, Ethinyl Estradiol interaction?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.