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Dietary supplement

Chen Pi Ingredients & Drug Interactions

by Herbal Terra

Chen Pi label
See full label image
Liquid Category: Botanical
Most serious interaction: Minor
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Chen Pi 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: Minor

Chen Pi is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for source of vitamin c, digestive support, aromatherapy and relaxation.Based on those ingredients, 643 medications have a known interaction with it, the most serious rated minor. The ingredients most likely to interact are wildcrafted Chen Pi (Citrus reticulata) dried peel liquid extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Chen Pi by Herbal Terra

Ask about any prescription or over-the-counter medication and we check it for interactions with Chen Pi by Herbal Terra — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Chen Pi 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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 16, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Chen Pi contains one active ingredient: wildcrafted Chen Pi, which is dried tangerine peel in liquid extract form. The extract is prepared in a menstruum (a liquid carrier used to concentrate the plant material).

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

This is a single-ingredient Tangerine product and its label doesn't state a use — see Tangerine's own graded uses on its monograph.

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

The evidence we hold does not establish whether Chen Pi is effective for cancer or any other condition — the data rates it as insufficient reliable evidence to assess its benefits.

The evidence, ingredient by ingredient Tangerine

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Tangerine fruit itself is generally well tolerated when eaten as food. However, because this product is a concentrated extract rather than whole fruit, the safety picture is less clear — concentrated supplements and essential oils derived from tangerine should be used with caution and under medical advice.

In humans, very few side effects have been reported with medicinal tangerine use, though a complete safety review has not been done. Topically, tangerine essential oil has been linked to contact dermatitis in case reports.

Pregnancy and lactation safety data are not on file for this ingredient — talk with your doctor or pharmacist about whether it's right for you if you're pregnant or nursing.

Side effects, ingredient by ingredient Tangerine

Meds to double-check

Minor interactions only
Known Interaction Concern · database check
Minor only

Only Minor-severity interactions are documented for these ingredients.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Tangerine.
  • The most serious interaction on file is rated Minor.
  • For scale: 644 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.

Before taking this product, check with your doctor or pharmacist about any medications you use that are broken down by the liver enzyme CYP3A4 — including sedatives like midazolam, blood pressure drugs, statins, and immunosuppressants. The human evidence on midazolam suggests the effect is likely small, but because this is a concentrated extract rather than juice, the impact could differ.

No interactions are documented for the other ingredients we could check.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Only minor medication interactions are documented, and safety information is well characterized.

Chen Pi is a single-ingredient tangerine peel extract with minor documented interactions affecting a large number of medications, mainly through effects on how your liver breaks down drugs. If you take any prescription medications — especially sedatives, blood pressure drugs, cholesterol medications, or immunosuppressants — confirm with your own doctor or pharmacist that this product won't interfere before you start.

The evidence doesn't yet support claims about its effectiveness for any specific condition.

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

At a glance

General information

Key facts about Chen Pi, straight from the product label.

Brand Herbal Terra
Barcode (UPC) 7429523779713
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Sep 25, 2020
DSLD ID 234305
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
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 Chen Pi by Herbal Terra, 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:
1 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
7429523779713
IngredientAmount% DV
wildcrafted Chen Pi (Citrus reticulata) dried peel liquid extract970 mg--

Other ingredients: Menstruum

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.
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

Citrus reticulata

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.

See for yourself

Chen Pi by Herbal Terra label

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

Chen Pi 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 Chen Pi 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 Chen Pi (Citrus reticulata) dried peel liquid extract

Interacts with
643 drugs
970 mg per serving

Tangerine is a sweet citrus fruit that is a good source of vitamin C and other nutrients, and is widely enjoyed as food. While the peel and essential...

Wildcrafted Chen Pi (Citrus reticulata) dried peel liquid extract monograph & interactions

Other (inactive) ingredients: Menstruum. These complete the product’s ingredient list but are not active constituents.

Interaction report

Chen Pi by Herbal Terra Drug Interactions

Want to check YOUR meds against Chen Pi?

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
643Drugs
643 Minor

Ingredients driving the most interactions

wildcrafted Chen Pi (Citrus reticulata) dried peel liquid extract 643

Individual Drug Interactions

The ingredients in Chen Pi interact with 643 drugs. Click any drug to see the details.

1 of the 1 ingredient in Chen Pi interact with drugs. Each result below shows which ingredient is responsible. wildcrafted Chen Pi (Citrus reticulata) dried peel liquid extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Chen Pi 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 Chen Pi (Citrus reticulata) dried peel liquid extract2 drug types · 643 drugs

Cytochrome P450 3A4 (Cyp3A4) Substrates

In vitro, tangeretin, a constituent of tangerine, induces a 52% increase in the metabolism of midazolam by cytochrome P450 3A4 (CYP3A4). This suggests that tangeretin may stimulate CYP3A4 activity. However, in humans, drinking tangerine juice 200 mL slightly delayed the absorption, but did not affect the metabolism, of midazolam, a CYP3A4 substrate. Theoretically, tangerine juice might increase CYP3A4 activity and decrease levels of drugs metabolized by this enzyme. However, this effect is unlikely.
Some drugs metabolized by CYP3A4 include amitriptyline (Elavil), amiodarone (Cordarone), citalopram (Celexa), felodipine (Plendil), lansoprazole (Prevacid), ondansetron (Zofran), prednisone (Deltasone, Orasone), sertraline (Zoloft), sibutramine (Meridia), and many others.

Likelihood Unlikely Evidence B
Midazolam (Versed)

In vitro, tangeretin, a constituent of tangerine, appears to increase the metabolism of midazolam in human liver microsomes by up to 52%. However, in humans, drinking tangerine juice 200 mL slightly delayed the absorption, but did not affect the metabolism, of midazolam. Theoretically, tangerine juice might increase the metabolism and reduce the effects of midazolam. However, this effect is unlikely.

Likelihood Unlikely Evidence B
wildcrafted Chen Pi (Citrus reticulata) dried peel liquid extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Chen Pi, from the product label.

Herbal Terra

See all Herbal Terra products
Name
Herbal Terra
Pharmacist Counseling Corner

Chen Pi by Herbal Terra: Common Questions

Does Chen Pi by Herbal Terra interact with any medications?
Yes. Based on its ingredients, Chen Pi has a known interaction with 643 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Chen Pi contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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 tangerine peel safe to take long-term?
Tangerine fruit is safe as food, but this product is a concentrated extract — the safety of long-term concentrated supplements isn't well studied. Use it with caution and talk with your doctor or pharmacist about how long it's appropriate for you.
Does Chen Pi work for cancer?
The evidence we hold doesn't establish whether Chen Pi is effective for cancer — we rate it insufficient reliable evidence. If you're considering it as a cancer treatment or support, discuss that with your oncologist.
What are the side effects?
Very few side effects have been reported with medicinal tangerine use, but a thorough safety evaluation hasn't been completed. Topically, tangerine essential oil has been linked to contact dermatitis in a case report.
Can I take this if I'm pregnant or nursing?
We don't have pregnancy or lactation safety data for tangerine extract on file. Talk with your doctor or pharmacist about whether it's appropriate for you during pregnancy or while breastfeeding.
Why does the label list a menstruum?
The menstruum is the liquid carrier used to create the extract — it's an inactive ingredient that helps deliver the tangerine peel compounds. It's not a separate active ingredient.

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.

Chen Pi label
Go deeper

The Full Monographs Behind Chen Pi’s Ingredients

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

Herb & supplement monograph

Tangerine

Interacts with 643 drugs

Tangerine is a sweet citrus fruit that is a good source of vitamin C and other nutrients, and is widely enjoyed as food. While the peel and essential oil are used in traditional medicine and...

Read the full Tangerine monograph →
Sources

Sources & How We Checked

Chen Pi'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 3 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.

Tangerine 3 references
  1. Yuan, J. M., Wang, X. L., Xiang, Y. B., Gao, Y. T., Ross, R. K., and Yu, M. C. Preserved foods in relation to risk of nasopharyngeal carcinoma in Shanghai, China. Int J Cancer 2000;85(3):358-363. DOI
  2. Backman, J. T., Maenpaa, J., Belle, D. J., Wrighton, S. A., Kivisto, K. T., and Neuvonen, P. J. Lack of correlation between in vitro and in vivo studies on the effects of tangeretin and tangerine juice on midazolam hydroxylation. Clin Pharmacol Ther 2000; PubMed
  3. Vilaplana, J. and Romaguera, C. Contact dermatitis from the essential oil of tangerine in fragrance. Contact Dermatitis 2002;46(2):108. PubMed

See these in context on the Tangerine 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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