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Dietary supplement

Shi Chang Pu Ingredients & Drug Interactions

by Hawaii Pharm

Shi Chang Pu label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Oct 7, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Shi Chang Pu 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

Shi Chang Pu is a dietary supplement by Hawaii Pharm with 1 active ingredient. Its ingredients are commonly taken for digestive upset and gas, loss of appetite, memory and focus (traditional).Based on those ingredients, 1,119 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are wildcrafted Shi Chang Pu 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 Shi Chang Pu by Hawaii Pharm

Ask about any prescription or over-the-counter medication and we check it for interactions with Shi Chang Pu by Hawaii Pharm — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Shi Chang Pu by Hawaii Pharm

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 Oct 6, 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.

This product contains one active ingredient: a wildcrafted extract of Shi Chang Pu, also known as calamus. The liquid is formulated with vegetable palm glycerin and pharmaceutical-grade alcohol as inactive ingredients.

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 Calamus product and its label doesn't state a use — see Calamus'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 supporting Shi Chang Pu for its traditional uses is not established. Our data shows insufficient reliable evidence to rate its effectiveness for bronchitis, asthma, anorexia nervosa, or cancer.

The evidence, ingredient by ingredient Calamus

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.

Calamus carries serious safety concerns. Some forms of calamus contain beta-asarone, a compound the FDA has banned from food because it may increase cancer risk.

The product is likely unsafe to use — adverse effects reported with calamus include nausea and vomiting, and in rare cases, intestinal paralysis and cancer. Because of potential effects on the uterus and the presence of toxic compounds, the safety data advises against use during pregnancy and breastfeeding.

If you're pregnant, nursing, or planning either, do not take this product without first talking with your doctor or pharmacist.

Side effects, ingredient by ingredient Calamus

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?
  • 1 of the 1 matched ingredient can interact with medications — Calamus.
  • The most serious interaction on file is rated Moderate.
  • For scale: 1,120 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 Shi Chang Pu, double-check with your doctor or pharmacist if you take any central nervous system depressants (sedatives, sleep aids, opioid pain relievers), blood pressure medications, drugs metabolized by your liver (including many statins and cancer medications), antidepressants — especially MAOIs — anticholinergic or cholinergic drugs, or acid-reducing medications. The interaction list is long; your pharmacist can help you confirm your specific medications.

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. Moderate medication interactions have been identified, and safety information is well characterized.

Shi Chang Pu is a high-interaction product with serious safety red flags — particularly the cancer risk from beta-asarone and the breadth of potential medication interactions. Unless your doctor or pharmacist has specifically recommended it for you and confirmed your medications are compatible, this is not an easy add-on.

Before you use it, check your exact prescriptions against the interaction tool on this page and discuss it with your own doctor or pharmacist.

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 Nov 21, 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 Shi Chang Pu, straight from the product label.

Brand Hawaii Pharm
Barcode (UPC) 617503499646
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Nov 21, 2020
DSLD ID 237627
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten 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 Shi Chang Pu by Hawaii Pharm, 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:
0.7 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
617503499646
IngredientAmount% DV
wildcrafted Shi Chang Pu extract970 mg--

Other ingredients: Vegetable Palm Glycerin, pharmaceutical grade Alcohol

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

Hawaii Pharm Herbal Extract Highest quality since 2008

Made with Aloha!

Formulation

Contains no GMO, gluten, artificial colors, heavy metals, preservatives, pesticides, fertilizers.

Super concentrated liquid herbal extract. Dry herb/menstruum ratio: 1:3.

Manufactured in an FDA registered facility.

Non GMO Gluten free

Made in USA, Hawaii

Suggested/Recommended/Usage/Directions

Directions for use: Shake well before using. Take about 20-30 drops (0.7-1 ml, one full squeeze of the dropper bulb) to 2-4 oz of juice or water up to 4 times per day.

Precautions

Warning: Keep out of the reach of children.

We recommend to seek expert medical advice before taking. May have contraindications.

Do not use if you are allergic to any ingredients.

Consult your physician before giving to children under 18, during pregnancy, if nursing or taking any medications.

Consult your physician before giving to children under 18, during pregnancy, if nursing or taking any medications.

Do not use if seal is broken or missing.

Storage

Store in a cool dry place.

Formula

(Acori tatarinowii)

FDA Statement of Identity

Herbal Dietary Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Seals/Symbols

FDA Registered Facility Made in United States of America USA

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

See for yourself

Shi Chang Pu by Hawaii Pharm label

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

Shi Chang Pu 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 Shi Chang Pu by Hawaii Pharm

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size0.7 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Wildcrafted Shi Chang Pu extract

Interacts with
1,119 drugs
970 mg per serving

Calamus is a swamp plant with a long history in Ayurvedic and traditional Chinese medicine, mostly for digestive and nervous-system complaints. Howeve...

Wildcrafted Shi Chang Pu extract monograph & interactions

Other (inactive) ingredients: Vegetable Palm Glycerin, Pharmaceutical grade Alcohol. These complete the product’s ingredient list but are not active constituents.

Interaction report

Shi Chang Pu by Hawaii Pharm Drug Interactions

Want to check YOUR meds against Shi Chang Pu?

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
1,119Drugs
1,100 Moderate 19 Minor

Ingredients driving the most interactions

wildcrafted Shi Chang Pu extract 1,119

Individual Drug Interactions

The ingredients in Shi Chang Pu interact with 1,119 drugs. Click any drug to see the details.

1 of the 1 ingredient in Shi Chang Pu interact with drugs. Each result below shows which ingredient is responsible. wildcrafted Shi Chang Pu extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Shi Chang Pu 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 Shi Chang Pu extract10 drug types · 1,119 drugs

Anticholinergic Drugs

Theoretically, concurrent use of anticholinergic drugs and calamus might decrease the effectiveness of the anticholinergic drug.
In vitro evidence shows that calamus can inhibit acetylcholinesterase (AChE).

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, taking calamus with other antihypertensive medications might increase the risk of hypotension.
Animal research shows that calamus decreases the rate and strength of the heartbeat, which might lower blood pressure. use with caution.

Likelihood Possible Evidence D
Cholinergic Drugs

Theoretically, concurrent use of cholinergic drugs and calamus might have an additive effect and increase the risk of cholinergic effects.
In vitro evidence shows that calamus can inhibit acetylcholinesterase (AChE).

Likelihood Possible Evidence D
Cns Depressants

Theoretically, concurrent use of CNS depressants and calamus might have an additive effect and increase the risk of sedative effects.
Animal research shows that calamus is a CNS depressant and increases gamma-aminobutyric acid levels.

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

Theoretically, taking calamus with drugs metabolized by CYP2D6 might increase drug levels and potentially increase the risk of adverse effects.
In vitro research shows that calamus extract inhibits CYP2D6 enzyme.

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

Theoretically, taking calamus with drugs metabolized by CYP3A4 might increase drug levels and potentially increase the risk of adverse effects.
In vitro research shows that calamus extract inhibits CYP3A4 enzyme.

Likelihood Possible Evidence D
Monoamine Oxidase Inhibitors (Maois)

Theoretically, calamus might potentiate the effects and adverse effects of MAOIs.
Some reports suggest that calamus increases the effects of MAOIs.

Likelihood Possible Evidence D
Antacids

Theoretically, taking calamus might reduce the effectiveness of antacids.
Some research suggests that calamus lowers gastric pH.

Likelihood Possible Evidence D
H2-Blockers

Theoretically, taking calamus might reduce the effectiveness of H2-blockers.
Some research suggests that calamus lowers gastric pH.

Likelihood Possible Evidence D
Proton Pump Inhibitors (Ppis)

Theoretically, taking calamus might reduce the effectiveness of PPIs.
Some research suggests that calamus lowers gastric pH.

Likelihood Possible Evidence D
wildcrafted Shi Chang Pu extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Shi Chang Pu, from the product label.

Hawaii Pharm

See all Hawaii Pharm products
Name
Hawaii Pharm LLC
City
Honolulu
State
HI
ZipCode
96815
Web Address
www.hawaiipharm.com
Pharmacist Counseling Corner

Shi Chang Pu by Hawaii Pharm: Common Questions

Does Shi Chang Pu by Hawaii Pharm interact with any medications?
Yes. Based on its ingredients, Shi Chang Pu has a known interaction with 1,119 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Shi Chang Pu 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.
Can I take Shi Chang Pu if I'm pregnant or breastfeeding?
No. The safety data rates calamus as likely unsafe during pregnancy and breastfeeding because it may affect the uterus, contains potentially toxic compounds, and has no reliable safety data for nursing. Do not take this product if you're pregnant, planning to become pregnant, or breastfeeding — talk with your doctor or pharmacist first.
What side effects might I experience?
Nausea and vomiting are the most commonly reported side effects. In rare cases, more serious effects like intestinal paralysis and cancer have been reported. Because some forms contain beta-asarone, a compound the FDA banned from food for cancer risk, this product carries a real safety concern.
Does Shi Chang Pu actually work for asthma or bronchitis?
The evidence is not established. Our data shows insufficient reliable evidence to rate its effectiveness for either condition, so we can't say whether it works for those uses.
Why does this product interact with so many medications?
Calamus inhibits two major liver enzymes — CYP2D6 and CYP3A4 — that your body uses to break down hundreds of common drugs. When those enzymes are slowed, the medications can build up to higher levels in your bloodstream, raising the risk of side effects.
Is it safe to take this with my blood pressure medication?
Theoretically, no — calamus may lower your heart rate and blood pressure, and combining it with blood pressure medications could increase the risk of blood pressure dropping too low. Check with your doctor or pharmacist before taking this product alongside any blood pressure drug.

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.

Shi Chang Pu label
Go deeper

The Full Monographs Behind Shi Chang Pu’s Ingredients

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

Herb & supplement monograph

Calamus

Interacts with 1,119 drugs

Calamus is a swamp plant with a long history in Ayurvedic and traditional Chinese medicine, mostly for digestive and nervous-system complaints. However, it contains beta-asarone, a compound...

Read the full Calamus monograph →
Sources

Sources & How We Checked

Shi Chang Pu'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 13 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.

Calamus 13 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Brinker F. Herb Contraindications and Drug Interactions. Sandy, OR: Eclectic Medical Publ, 1997.
  4. Shoba, F. G. and Thomas, M. Study of antidiarrhoeal activity of four medicinal plants in castor-oil induced diarrhoea. J Ethnopharmacol 2001;76(1):73-76. PubMed
  5. Koo, B. S., Park, K. S., Ha, J. H., Park, J. H., Lim, J. C., and Lee, D. U. Inhibitory effects of the fragrance inhalation of essential oil from Acorus gramineus on central nervous system. Biol Pharm.Bull. 2003;26(7):978-982. PubMed
  6. Oh, M. H., Houghton, P. J., Whang, W. K., and Cho, J. H. Screening of Korean herbal medicines used to improve cognitive function for anti-cholinesterase activity. Phytomedicine 2004;11(6):544-548. PubMed
  7. Panchal, G. M., Venkatakrishna-Bhatt, H., Doctor, R. B., and Vajpayee, S. Pharmacology of Acorus calamus L. Indian J Exp.Biol 1989;27(6):561-567.
  8. Vargas, C. P., Wolf, L. R., Gamm, S. R., and Koontz, K. Getting to the root (Acorus calamus) of the problem. J Toxicol Clin Toxicol 1998;36(3):259-260.
  9. Pandit S, Mukherjee PK, Ponnusankar S, Venkatesh M, Srikanth N. Metabolism mediated interaction of a-asarone and Acorus calamus with CYP3A4 and CYP2D6. Fitoterapia 2011;82(3):369-74.
  10. Sharma V, Singh I, Chaudhary P. Acorus calamus (The Healing Plant): a review on its medicinal potential, micropropagation and conservation. Nat Prod Res. 2014;28(18):1454-66.
  11. Björnstad K, Helander A, Hultén P, Beck O. Bioanalytical investigation of asarone in connection with Acorus calamus oil intoxications. J Anal Toxicol 2009;33(9):604-9. PubMed
  12. Federal Register. Volume 33, Page 6967. U.S. Government Publishing Office. http://api.fdsys.gov/link?collection=fr&volume=33&page=6967. Accessed May 23, 2018.
  13. Electronic Code of Federal Regulations. Title 21. Part 189 - Substances Prohibited From Use in Human Food. Available at: https://www.ecfr.gov/cgi-bin/text-idx?SID=259fa8a1284cad42676075c8425c7333&mc=true&node=pt21.3.189&rgn=div5.

See these in context on the Calamus 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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