Huang Bo Ingredients & Drug Interactions
by Herbal Terra
What is this page for?
First and foremost: checking Huang Bo 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
Huang Bo is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for digestive complaints and diarrhea, inflammation and joint discomfort, stress and weight management (in combination products).Based on those ingredients, 1,160 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are wildcrafted Huang Bo (Phellodendron chinense) dried bark liquid extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Huang Bo by Herbal Terra
Ask about any prescription or over-the-counter medication and we check it for interactions with Huang Bo by Herbal Terra — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Huang Bo by Herbal Terra
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.
What’s inside
Full disclosure
Huang Bo by Herbal Terra contains one active ingredient: a liquid extract of wildcrafted Phellodendron chinense dried bark. This is a traditional herbal remedy whose active compound is berberine, an alkaloid that gives the plant its therapeutic properties.
The product also contains menstruum as an inactive ingredient (the liquid carrier used to extract and preserve the herb).
Does it work?
Couldn't assess
The evidence for Huang Bo's effectiveness isn't established in our data. The product is marketed for acne, benign prostatic hyperplasia (an enlarged prostate), diabetes, weight loss, osteoarthritis, and peptic ulcers, but the data we hold shows insufficient reliable evidence to rate it for any of these uses.
If you're considering it for a specific condition, talk it over with your doctor or pharmacist about what the current research actually shows.
How safe is it?
Well-documented data
Human safety data for phellodendron are limited, and the product is traditionally used only short-term. The adverse effects reported in clinical trials of combination products containing phellodendron plus magnolia include isolated cases of sexual dysfunction, hand shaking, numbness around the mouth, fatigue, headache, and heartburn—though it's unclear whether phellodendron itself was responsible.
Berberine—the active compound in this product—is likely unsafe during breastfeeding and may pass to infants and cause harm, so avoid use if you're nursing. During pregnancy, the safety data advise against it.
Meds to double-check
Moderate interaction found
Before taking Huang Bo, double-check with your doctor or pharmacist if you're on blood thinners or antiplatelet drugs (warfarin, aspirin, clopidogrel), sedatives or CNS depressants, blood pressure medications, diabetes drugs or metformin, or any medications broken down by your liver—including certain antidepressants, heart medications, and cholesterol drugs. All of these can interact with phellodendron at a Moderate severity level.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Huang Bo is a single-ingredient herbal extract that interacts with a broad range of medications, particularly blood thinners, blood pressure drugs, diabetes treatments, and sedatives. The evidence for what it actually works for isn't established in the data we hold.
If you take any prescription medication, check your exact drugs with the tool on this page before starting, and talk it over with your doctor or pharmacist to see whether it's right for you.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2020.
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
General information
Key facts about Huang Bo, straight from the product label.
| Brand | Herbal Terra |
|---|---|
| Barcode (UPC) | 7429524714737 |
| Net contents | 4 Fluid Ounce(s); 120 mL |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2020 |
| DSLD ID | 234136 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Sugar Free |
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 Huang Bo by Herbal Terra, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| wildcrafted Huang Bo (Phellodendron chinense) dried bark liquid extract | 970 mg | -- |
Other ingredients: Menstruum
Tap any ingredient to jump to its full detail below.
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.
Suggested/Recommended/Usage/Directions
Direction Shake well before use. Adults take up to 30 drops (1 mL, one full squeeze of the dropper bulb) in 3-4 fl. oz of juice or water up to 4 times a day. We recommend to seek expert medical advice before taking this or any other herbal supplements.
FDA Disclaimer Statement
Notice This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease.
Formulation
Manufactured in the USA in an FDA registered facility
Sugar free
Dried herb/menstruum ratio: 1:3 Expertly extracted Laboratory tested 330 mg/1 mL Premium product Super concentrated liquid herbal extract
Non GMO
No artificial ingredients, GMO, gluten, color additives, fillers, preservatives or binders. Natural Gluten Free
Precautions
Caution May have contraindications.
Do not use if you are allergic to any ingredients.
Consult a physician before using during pregnancy, if nursing, or if you are on any medications.
Keep out of the reach of children.
Storage
Store in a cool, dry, dark place.
Formula
Phellodendron chinense
FDA Statement of Identity
Herbal Supplement
Seals/Symbols
Made in USA Made in an FDA registered facility Natural Gluten Free
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Huang Bo by Herbal Terra label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Huang Bo by Herbal Terra
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.
Wildcrafted Huang Bo (Phellodendron chinense) dried bark liquid extract
Interacts with1,160 drugs
Phellodendron is a traditional Chinese medicine bark (Huang Bai) that contains berberine and other plant compounds with antimicrobial and anti-inflamm...
Wildcrafted Huang Bo (Phellodendron chinense) dried bark liquid extract monograph & interactionsOther (inactive) ingredients: Menstruum. These complete the product’s ingredient list but are not active constituents.
Huang Bo by Herbal Terra Drug Interactions
HelloPharmacist Interaction Report
Huang Bo by Herbal Terra interacts with medications through its phellodendron content, which contains berberine—a compound that affects how your body processes and responds to several drug classes.
The most serious concern is with blood thinners and antiplatelet drugs (like warfarin and aspirin): berberine may increase bleeding risk by slowing how platelets clump together.
Read the full breakdown — every affected drug type, severity by severity
You'll also want to check before combining this with sedatives or sleep aids, blood pressure medications, or diabetes drugs. Phellodendron may add to the drowsy effects of CNS depressants, lower blood pressure on top of what your medication already does, or push blood sugar too low.
It may also affect how your body breaks down certain medications—including some antidepressants, heart drugs, and cholesterol treatments—potentially raising their levels in your bloodstream. Metformin (Glucophage) users should be especially cautious: berberine can increase both its therapeutic and side effects.
Altogether, these interactions span 1,161 individual medications. Use the medication checker on this page to look up your exact prescriptions before starting this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Huang Bo?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Huang Bo interact with 1,160 drugs. Click any drug to see the details.
1 of the 1 ingredient in Huang Bo interact with drugs. Each result below shows which ingredient is responsible. wildcrafted Huang Bo (Phellodendron chinense) dried bark liquid extract
Ado-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, phellodendron might increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractAnticoagulant/antiplatelet Drugs, Cytochrome P450 2c9 (cyp2c9) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acalabrutinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, phellodendron may increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acarbose interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, phellodendron might have additive effects with antihypertensive drugs.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acebutolol interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, phellodendron might increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acenocoumarol interactionAcepromazineAtravet
How Acepromazine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCns Depressants Moderate
Interaction Summary
Theoretically, phellodendron might increase the sedative effects of CNS depressants.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acepromazine interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, phellodendron might increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractAnticoagulant/antiplatelet Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP2D6.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCns Depressants, Cytochrome P450 2d6 (cyp2d6) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase the sedative effects of CNS depressants.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCns Depressants, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase the sedative effects of CNS depressants.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cns Depressants +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP2D6.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCns Depressants, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase the sedative effects of CNS depressants.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractDextromethorphan (robitussin Dm, Others), Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, phellodendron may increase serum levels of dextromethorphan.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cns Depressants +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP2D6.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Dextromethorphan (robitussin Dm, Others) +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP2D6.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractDextromethorphan (robitussin Dm, Others), Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, phellodendron may increase serum levels of dextromethorphan.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Huang Bo — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, phellodendron might increase serum levels of drugs metabolized by CYP3A4.
Read the full Wildcrafted Huang Bo (phellodendron Chinense) Dried Bark Liquid Extract + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Huang Bo with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
wildcrafted Huang Bo (Phellodendron chinense) dried bark liquid extract
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Brand information
Manufacturer and brand details for Huang Bo, from the product label.
Huang Bo by Herbal Terra: Common Questions
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Sources & How We Checked
Huang Bo'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 22 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.
Phellodendron 22 references
- Chan E. Displacement of bilirubin from albumin by berberine. Biol Neonate 1993;63:201-8. PubMed
- Janbaz KH, Gilani AH. Studies on preventive and curative effects of berberine on chemical-induced hepatotoxicity in rodents. Fitoterapia 2000;71:25-33.. PubMed
- 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
- 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.
- 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
- 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
- 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
- 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
- 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.
- 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
- Sabir M and Bhide NK. Study of some pharmacological actions of berberine. Ind J Physiol & Pharmac 1971;15(3):111-132.
- Tripathi YB and Shukla SD. Berberis artistata inhibits PAF induced aggregation of rabbit platelets. Phytotherapy Research 1996;10:628-630.
- Yin, J., Xing, H., and Ye, J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism 2008;57(5):712-717. PubMed
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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.
- 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
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