Interactions on record — worth a quick check against your medications. Based on 3 of 4 ingredients. Check your meds →
Dietary supplement

Four Marvel Teapills Ingredients & Drug Interactions

by Plum Flower

Four Marvel Teapills label
See full label image
Tablet Or Pill Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Four Marvel Teapills against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Four Marvel Teapills is a dietary supplement by Plum Flower with 4 active ingredients. Its ingredients are commonly taken for digestive support, skin health and smoothness, mild swelling or water retention.Based on those ingredients, 1,196 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Phellodendron chinense Bark Extract, Atractylodes lancea Rhizome Extract, Coix lacryma jobi Seed Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Four Marvel Teapills by Plum Flower

Ask about any prescription or over-the-counter medication and we check it for interactions with Four Marvel Teapills by Plum Flower — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Four Marvel Teapills by Plum Flower

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 4 active ingredients.
  • “Proprietary Extract Blend” is a proprietary blend — the label gives one combined amount (1,360 mg) without saying how much of each component you get.

Four Marvel Teapills contains four active ingredients. Job's Tears (Coix lacryma jobi Seed Extract) and Phellodendron (Phellodendron chinense Bark Extract) are the main players; both are traditional herbal extracts.

Atractylodes lancea Rhizome Extract and Achyranthes bidentata Root Extract complete the formula. The product also contains several inactive ingredients — magnesium silicate, maltose, activated carbon, and china wax — which are excipients that help form and stabilize the pills.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

The label doesn't state a purpose we can grade — see each ingredient's own graded uses on its monograph instead.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence supporting Four Marvel Teapills is limited. Our data shows insufficient reliable evidence to rate any of its ingredients for the conditions they're traditionally used for.

Job's Tears has insufficient evidence for cholesterol support, Phellodendron for acne, diabetes, weight, joint pain, ulcers, or prostate health, and Atractylodes for appetite, wasting, lung support, cold symptoms, or digestion. Without established effectiveness data, we can't say whether this formula will work for you.

The evidence, ingredient by ingredient Job's Tears Phellodendron Atractylodes

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 2 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Job's Tears is generally well tolerated as a food, but safety data for concentrated supplements are limited; traditional use advised against it in pregnancy, and human safety data are lacking. Phellodendron contains berberine, which the safety data advise against during pregnancy and breastfeeding because it may reach infants and cause harm.

Atractylodes safety data are incomplete; pregnancy use is rated possibly unsafe, and breastfeeding safety is unknown, so avoidance is recommended. In combination products containing phellodendron plus magnolia, a small number of trial participants reported sexual dysfunction, tremor, numbness around the mouth, fatigue, headache, and heartburn — though it's unclear whether phellodendron was the cause.

Side effects, ingredient by ingredient Job's Tears Phellodendron Atractylodes

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 3 of the 3 matched ingredients can interact with medications — Phellodendron, Atractylodes, Job's Tears.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 1,197 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Blood pressure medications, blood thinners (anticoagulants and antiplatelets), diabetes drugs, and any medication processed by your liver (CYP2D6, CYP2C9, or CYP3A4 substrates) warrant a careful review — the Moderate interactions here are significant. Also check if you take asthma or breathing medications containing theophylline, cough suppressants with dextromethorphan, muscle relaxers like chlorzoxazone, heart drugs like diltiazem, metformin, or aromatase inhibitors.

Use the medication search tool below with your complete list.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This is a traditional herbal formula with limited evidence of effectiveness for any specific condition. If you take any prescription medications — especially blood pressure drugs, blood thinners, diabetes medications, heart drugs, or anything processed by your liver — talk with your pharmacist or doctor before starting.

Pregnant and breastfeeding people should avoid it. If you decide to try it, double-check your exact medications first.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 3 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 22, 2025.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Four Marvel Teapills, straight from the product label.

Brand Plum Flower
Barcode (UPC) 739934860298
Net contents 1.2 Ounce(s); 34 Gram(s); 200 Pill(s)
Market status On market
Date entered into DSLD Aug 22, 2025
DSLD ID 336464
Product type Botanical
Supplement form Tablet Or Pill
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Four Marvel Teapills by Plum Flower, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
8 Pill(s)
Maximum serving Sizes:
8 Pill(s)
Servings per container
25
UPC/BARCODE
739934860298
IngredientAmount% DV
Proprietary Extract Blend1360 mg--
Coix lacryma jobi Seed Extract0 NP--
Phellodendron chinense Bark Extract0 NP--
Achyranthes bidentata Root Extract0 NP--
Atractylodes lancea Rhizome Extract0 NP--

Other ingredients: Magnesium Silicate, Hydrated, Maltose, Carbon, Activated, China Wax

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements

Si Miao Wan

Foci Pharmaceutical 1929

FDA Statement of Identity

Herbal Supplement

Precautions

Contains Wheat (*processed with wheat bran)

Not for use during pregnancy

Keep out of reach of children

Suggested/Recommended/Usage/Directions

Take 8 pills 3 times daily or as directed by your health care practitioner.

Seals/Symbols

Plum Flower Guarantee Sourced Sustainably FDA Registered cGMP Compliant Made at a cGMP certified facility Lab tested Quality Verified Species Verified

Formulation

US owned & operated since 1969. Made in China in partnership with the award winning Lanzhou Foci Pharmaceutical Co. Ltd.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Four Marvel Teapills by Plum Flower label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Four Marvel Teapills label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Four Marvel Teapills by Plum Flower

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size8 Pill(s) Dosage formTablet Or Pill Servings per container25 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Proprietary Extract Blend

1360 mg per serving

Other (inactive) ingredients: Magnesium Silicate, Hydrated, Maltose, Carbon, Activated, China Wax. These complete the product’s ingredient list but are not active constituents.

Interaction report

Four Marvel Teapills by Plum Flower Drug Interactions

Want to check YOUR meds against Four Marvel Teapills?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
1,196Drugs
1,167 Moderate 29 Minor

Ingredients driving the most interactions

Phellodendron chinense Bark Extract 1,160
Atractylodes lancea Rhizome Extract 801
Coix lacryma jobi Seed Extract 128

Individual Drug Interactions

The ingredients in Four Marvel Teapills interact with 1,196 drugs. Click any drug to see the details.

3 of the 4 ingredients in Four Marvel Teapills interact with drugs. Each result below shows which ingredient is responsible. Phellodendron chinense Bark Extract Atractylodes lancea Rhizome Extract Coix lacryma jobi Seed Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Four Marvel Teapills with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Phellodendron chinense Bark Extract14 drug types · 1,160 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, phellodendron might increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Phellodendron contains berberine. In vitro and in vivo research suggest that berberine can inhibit platelet aggregation. Theoretically, phellodendron might also inhibit platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, phellodendron may increase the risk of hypoglycemia when taken with antidiabetes drugs.
Phellodendron contains berberine. Clinical research shows that berberine may lower blood glucose levels. Theoretically, phellodendron might also lower blood glucose levels.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, phellodendron might have additive effects with antihypertensive drugs.
Phellodendron contains berberine. Animal research suggests that berberine can have hypotensive effects. Also, a clinical study suggests that taking berberine in combination with amlodipine can lower systolic and diastolic blood pressure when compared with amlodipine alone. Theoretically, phellodendron might also reduce blood pressure.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, phellodendron might increase the sedative effects of CNS depressants.
Phellodendron contains berberine. Animal research suggests that berberine may have sedative effects. Theoretically, phellodendron might also have CNS depressants effects.

Likelihood Possible Evidence D
Cyclosporine (Neoral, Sandimmune)

Theoretically, phellodendron might increase blood levels of cyclosporine.
Phellodendron contains berberine. Preliminary clinical research shows that berberine can reduce metabolism of cyclosporine and increase serum levels, likely through inhibition of cytochrome P450 3A4 (CYP3A4), which metabolizes cyclosporine. Theoretically, phellodendron might also reduce the metabolism of cyclosporine.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP2C9.
Phellodendron contains berberine. Preliminary clinical research shows that berberine can inhibit CYP2C9. Theoretically, phellodendron might also inhibit CYP2C9.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP2D6.
Phellodendron contains berberine. In vitro research and preliminary clinical evidence show that berberine can inhibit CYP2D6. Theoretically, phellodendron might also inhibit CYP2D6.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Phellodendron contains berberine. In vitro research and preliminary clinical research show that berberine moderately inhibits CYP3A4. Theoretically, phellodendron might also inhibit CYP3A4.

Likelihood Possible Evidence D
Dextromethorphan (Robitussin Dm, Others)

Theoretically, phellodendron may increase serum levels of dextromethorphan.
Phellodendron contains berberine. Preliminary clinical research shows that berberine can inhibit cytochrome P450 2D6 (CYP2D6) activity and reduce the metabolism of dextromethorphan. Theoretically, phellodendron may also inhibit the metabolism of dextromethorphan.

Likelihood Possible Evidence D
Losartan (Cozaar)

Theoretically, phellodendron might reduce the therapeutic effects of losartan by decreasing its conversion to its active form.
Phellodendron contains berberine. Preliminary clinical research suggests that berberine can inhibit cytochrome P450 2C9 (CYP2C9) activity and reduce metabolism of losartan. Theoretically, phellodendron might also inhibit the metabolism of losartan.

Likelihood Possible Evidence D
Metformin (Glucophage)

Theoretically, phellodendron might increase the therapeutic and adverse effects of metformin.
Phellodendron contains berberine. In vitro and animal studies show that berberine can increase the systemic exposure and half-life of metformin, potentially increasing metformin's effects and side effects. This interaction seems to be most apparent when berberine is administered 2 hours prior to metformin. Taking berberine and metformin at the same time does not appear to increase systemic exposure to metformin. It is unclear if phellodendron might have this same effect.

Likelihood Possible Evidence D
Midazolam (Versed)

Theoretically, phellodendron might reduce metabolism of midazolam, which might increase the risk of severe adverse effects.
Phellodendron contains berberine. Preliminary clinical research shows that berberine can inhibit cytochrome P450 3A4 (CYP3A4) activity and reduce metabolism of midazolam. Theoretically, phellodendron might also inhibit the metabolism of midazolam.

Likelihood Possible Evidence D
Pentobarbital (Nembutal)

Theoretically, phellodendron might increase the sedative effect of pentobarbital.
Phellodendron contains berberine. Animal research shows that berberine can prolong pentobarbital-induced sleeping time. Theoretically, phellodendron might increase the sedative effects of pentobarbital.

Likelihood Possible Evidence D
Tacrolimus (Prograf)

Theoretically, phellodendron might increase blood levels of tacrolimus.
Phellodendron contains berberine. In a 16-year-old patient with idiopathic nephrotic syndrome who was being treated with tacrolimus 6.5 mg twice daily, intake of berberine 200 mg three times daily increased the blood concentration of tacrolimus from 8 to 22 ng/mL. Following a reduction of the tacrolimus dose to 3 mg daily, blood levels of tacrolimus decreased to 12 ng/mL. It is unclear if phellodendron might have this same effect.

Likelihood Possible Evidence D
Phellodendron chinense Bark Extract full monograph & interactions

Atractylodes lancea Rhizome Extract5 drug types · 801 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, atractylodes might increase the risk of bleeding when used concomitantly with anticoagulant and antiplatelet drugs.
Laboratory research suggests that atractylenolides II and III, constituents of atractylodes, reduce platelet activation. So far, this has not been shown in humans.

Likelihood Possible Evidence D
Aromatase Inhibitors

Theoretically, atractylodes may have an additive effect when used with other aromatase inhibitors.
Laboratory research suggests that atractylodes and its constituents exhibit aromatase inhibitor effects.

Likelihood Possible Evidence D
Hexobarbital

Theoretically, taking atractylodes may prolong the therapeutic and adverse effects of hexobarbital.
In animals, atractylodes has been shown to prolong the effects of hexobarbital. These effects have not been shown in humans.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, atractylodes might decrease the levels of CYP1A2 substrates.
In animals, atractylodes administered at high doses has been shown to induce CYP1A2 activity. This effect has not been shown in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, atractylodes might increase the levels of CYP3A4 substrates.
In animals, atractylodes administered at high doses has been shown to inhibit CYP3A1 activity, which is a homolog to the human CYP3A4 enzyme. This effect has not been shown in humans.

Likelihood Possible Evidence D
Atractylodes lancea Rhizome Extract full monograph & interactions

Coix lacryma jobi Seed Extract5 drug types · 128 drugs

Antidiabetes Drugs

Preliminary evidence shows that constituents of Job's tears might have hypoglycemic effects. Theoretically, concomitant use with drugs that decrease blood glucose levels might increase the risk of hypoglycemia. Some antidiabetes drugs include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, pioglitazone (Actos), rosiglitazone (Avandia), chlorpropamide (Diabinese), glipizide (Glucotrol), tolbutamide (Orinase), and others.

Likelihood Possible Evidence D
Chlorzoxazone (Parafon Forte, Paraflex)

Animal research suggests that Job's tears might enhance absorption of chlorzoxazone in the small intestine. Single dose and short-term oral administration of Job's tears bran ethanolic extract along with oral administration of a five-drug cocktail containing chlorzoxazone increases chlorzoxazone peak plasma concentration and area under the plasma concentration-time curve (AUC) without altering major cytochrome P450 activities in the liver. This effect has not been reported in humans.

Likelihood Possible Evidence D
Dextromethorphan (Robitussin Dm, Others)

Animal research suggests that Job's tears might enhance absorption of dextromethorphan in the small intestine. Single dose oral administration of Job's tears bran ethanolic extract along with oral administration of a five-drug cocktail containing dextromethorphan increases dextromethorphan area under the plasma concentration-time curve (AUC) without altering major cytochrome P450 activities in the liver. This effect has not been reported in humans.

Likelihood Possible Evidence D
Diltiazem (Cardizem, Others)

Animal research suggests that Job's tears might enhance absorption of diltiazem in the small intestine. Single dose oral administration of Job's tears bran ethanolic extract along with oral administration of a five-drug cocktail containing diltiazem increases diltiazem peak plasma concentration and area under the plasma concentration-time curve (AUC) without altering major cytochrome P450 activities in the liver. This effect has not been reported in humans.

Likelihood Possible Evidence D
Theophylline

Animal research suggests that Job's tears might enhance absorption of theophylline in the small intestine. Single dose and short-term oral administration of Job's tears bran ethanolic extract along with oral administration of a five-drug cocktail containing theophylline increases theophylline peak plasma concentration and area under the plasma concentration-time curve (AUC) without altering major cytochrome P450 activities in the liver. This effect has not been reported in humans.

Likelihood Possible Evidence D
Coix lacryma jobi Seed Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Four Marvel Teapills, from the product label.

Plum Flower

Name
Mayway Corp.
City
Oakland
State
CA
ZipCode
94607
Web Address
www.plumflowerherbs.com
Pharmacist Counseling Corner

Four Marvel Teapills by Plum Flower: Common Questions

Does Four Marvel Teapills by Plum Flower interact with any medications?
Yes. Based on its ingredients, Four Marvel Teapills has a known interaction with 1,196 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Four Marvel Teapills contains 4 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is Four Marvel Teapills safe to take during pregnancy?
No. Job's Tears was traditionally avoided in pregnancy and human safety data are missing. Phellodendron, which contains berberine, is not safe in pregnancy. Atractylodes is rated possibly unsafe in pregnancy. The safety data advise against use — talk with your doctor or pharmacist before considering it.
Can I take this while breastfeeding?
No. Phellodendron is likely unsafe while breastfeeding because berberine can pass to infants and may cause harm. Atractylodes safety while breastfeeding is unknown, so avoidance is recommended. Don't use this product if you're nursing without talking to your pharmacist first.
What does Job's Tears do in this formula?
Job's Tears is included traditionally to support cholesterol levels, but our data show insufficient reliable evidence to confirm that it works. It's a seed extract used in traditional medicine, but human research on its effectiveness is limited.
Does this product have side effects?
Atractylodes may cause allergic reaction, dry mouth, or nausea in some people. Phellodendron-containing products have been linked in small numbers to sexual dysfunction, tremor, numbness around the mouth, fatigue, headache, and heartburn — though it's unclear whether phellodendron was responsible. Job's Tears safety data for supplements are limited.
Will this help with my blood sugar?
We don't have reliable evidence that it works for diabetes. But because Job's Tears and Phellodendron may lower blood sugar, using this product with diabetes medications could increase the risk of low blood sugar — another reason to check with your pharmacist first.
What are the inactive ingredients?
The pills contain magnesium silicate, maltose, activated carbon, and china wax — all excipients used to form and stabilize the tablet. If you have sensitivities to any of these, let your pharmacist know.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Four Marvel Teapills label
Go deeper

The Full Monographs Behind Four Marvel Teapills’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Job's Tears

Interacts with 128 drugs

Job's Tears is a grain-like seed long used as a food and in traditional medicine, especially in East Asia. While it is generally safe as a food and is being studied for possible effects on m...

Read the full Job's Tears monograph → Herb & supplement monograph

Phellodendron

Interacts with 1,160 drugs

Phellodendron is a traditional Chinese medicine bark (Huang Bai) that contains berberine and other plant compounds with antimicrobial and anti-inflammatory activity in lab studies. Human evi...

Read the full Phellodendron monograph → Herb & supplement monograph

Atractylodes

Interacts with 801 drugs

Atractylodes is a root used for centuries in traditional Chinese, Japanese, and Thai medicine, mostly for digestive complaints and fatigue, often as part of multi-herb formulas. Modern resea...

Read the full Atractylodes monograph →
Sources

Sources & How We Checked

Four Marvel Teapills's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 31 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Job's Tears 3 references
  1. Chiang W, Cheng C, Chiang M, Chung KT. Effects of dehulled adlay on the culture count of some microbiota and their metabolism in the gastrointestinal tract of rats. J Agric Food Chem 2000;48:829-32. PubMed
  2. Yu YM, Chang WC, Liu CS, Tsai CM. Effect of young barley leaf extract and adlay on plasma lipids and LDL oxidation in hyperlipidemic smokers. Biol Pharm Bull 2004;27:802-5. PubMed
  3. Yao HT, Lin JH, Liu YT, Li ML, Chiang W. Food-Drug Interaction between the Adlay Bran Oil and Drugs in Rats. Nutrients 2019;11(10):2473. PubMed

See these in context on the Job's Tears monograph →

Phellodendron 22 references
  1. Chan E. Displacement of bilirubin from albumin by berberine. Biol Neonate 1993;63:201-8. PubMed
  2. Janbaz KH, Gilani AH. Studies on preventive and curative effects of berberine on chemical-induced hepatotoxicity in rodents. Fitoterapia 2000;71:25-33.. PubMed
  3. Wu X, Li Q, Xin H, Yu A, Zhong M. Effects of berberine on the blood concentration of cyclosporin A in renal transplanted recipients: clinical and pharmacokinetic study. Eur J Clin Pharmacol 2005;61:567-72. PubMed
  4. Garrison R, Chambliss WG. Effect of a proprietary Magnolia and Phellodendron extract on weight management: a pilot, double-blind, placebo-controlled clinical trial. Altern Ther Health Med 2006;12:50-4.
  5. Zhang Y, Li X, Zou D, et al. Treatment of type 2 diabetes and dyslipidemia with the natural plant alkaloid berberine. J Clin Endocrinol Metab 2008;93:2559-65. PubMed
  6. Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
  7. Chatterjee P, Franklin MR. Human cytochrome p450 inhibition and metabolic-intermediate complex formation by goldenseal extract and its methylenedioxyphenyl components. Drug Metab Dispos 2003;31:1391-7. PubMed
  8. Shanbhag, S. M., Kulkarni, H. J., and Gaitonde, B. B. Pharmacological actions of berberine on the central nervous system. Jpn.J Pharmacol 1970;20(4):482-487. PubMed
  9. Wu, J. F. and Liu, T. P. [Effects of berberine on platelet aggregation and plasma levels of TXB2 and 6-keto-PGF1 alpha in rats with reversible middle cerebral artery occlusion]. Yao Xue.Xue.Bao. 1995;30(2):98-102.
  10. Peng, W. H., Hsieh, M. T., and Wu, C. R. Effect of long-term administration of berberine on scopolamine-induced amnesia in rats. Jpn J Pharmacol 1997;74(3):261-266. DOI
  11. Sabir M and Bhide NK. Study of some pharmacological actions of berberine. Ind J Physiol & Pharmac 1971;15(3):111-132.
  12. Tripathi YB and Shukla SD. Berberis artistata inhibits PAF induced aggregation of rabbit platelets. Phytotherapy Research 1996;10:628-630.
  13. Yin, J., Xing, H., and Ye, J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism 2008;57(5):712-717. PubMed
  14. Zhang, H., Wei, J., Xue, R., Wu, J. D., Zhao, W., Wang, Z. Z., Wang, S. K., Zhou, Z. X., Song, D. Q., Wang, Y. M., Pan, H. N., Kong, W. J., and Jiang, J. D. Berberine lowers blood glucose in type 2 diabetes mellitus patients through increasing insulin re
  15. Guo, Y., Chen, Y., Tan, Z. R., Klaassen, C. D., and Zhou, H. H. Repeated administration of berberine inhibits cytochromes P450 in humans. Eur J Clin Pharmacol 2012;68(2):213-217. PubMed
  16. Wei, W., Zhao, H., Wang, A., Sui, M., Liang, K., Deng, H., Ma, Y., Zhang, Y., Zhang, H., and Guan, Y. A clinical study on the short-term effect of berberine in comparison to metformin on the metabolic characteristics of women with polycystic ovary syndro
  17. Hermann, R. and von, Richter O. Clinical evidence of herbal drugs as perpetrators of pharmacokinetic drug interactions. Planta Med 2012;78(13):1458-1477. PubMed
  18. Chun YT, Yip TT, Lau KL, and et al. A biochemical study on the hypotensive effect of berberine in rats. Gen Pharmac 1979;10:177-182. PubMed
  19. Hou Q, Han W, Fu X. Pharmacokinetic interaction between tacrolimus and berberine in a child with idiopathic nephrotic syndrome. Eur J Clin Pharmacol 2013;69(10):1861-2. PubMed
  20. Lan J, Zhao Y, Dong F, et al. Meta-analysis of the effect and safety of berberine in the treatment of type 2 diabetes mellitus, hyperlipemia and hypertension. J Ethnopharmacol. 2015;161:69-81. PubMed
  21. Kalman DS, Feldman S, Feldman R, et al. Effect of a proprietary magnolia and phellodendron extract on stress levels in healthy women: a pilot, double-blind, placebo-controlled clinical trial. Nutr J 2008;7:11.
  22. Lyu Y, Zhang Y, Yang M, et al. Pharmacokinetic interactions between metformin and berberine in rats: Role of oral administration sequences and microbiota. Life Sci. 2019;235:116818. PubMed

See these in context on the Phellodendron monograph →

Atractylodes 6 references
  1. Liu Y, Jia Z, Dong L, et al. A randomized pilot study of atractylenolide I on gastric cancer cachexia patients. Evid Based Complement Alternat Med 2008;5:337-44. PubMed
  2. Chen Y, Yang W, Guo L, Wu X, Zhang T, Liu J, Zhang J. Atractylodes lactone compounds inhibit platelet activation. Platelets. 2017 Mar;28(2):194-202. PubMed
  3. Jiang H, Shi J, Li Y. Screening for compounds with aromatase inhibiting activities from Atractylodes macrocephala Koidz. Molecules. 2011 Apr 14;16(4):3146-51. PubMed
  4. Koonrungsesomboon N, Na-Bangchang K, Karbwang J. Therapeutic potential and pharmacological activities of Atractylodes lancea (Thunb.) DC. Asian Pac J Trop Med. 2014 Jun;7(6):421-8. PubMed
  5. Li L, Tang LY, Man GC, Yeung BH, Lau CB, Leung PC, Wang CC. Potential reproductive toxicity of Largehead Atractylodes Rhizome, the most commonly used Chinese medicine for threatened miscarriage. Hum Reprod. 2011 Dec;26(12):3280-8. PubMed
  6. Muhamad N, Plengsuriyakarn T, Na-Bangchang K. Atractylodes lancea for cholangiocarcinoma: Modulatory effects on CYP1A2 and CYP3A1 and pharmacokinetics in rats and biodistribution in mice. PLoS One 2022;17(11):e0277614. PubMed

See these in context on the Atractylodes monograph →

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

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