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Dietary supplement

Cereus Ingredients & Drug Interactions

by Hawaii Pharm

Cereus label
See full label image
Liquid 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 Cereus 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

Cereus is a dietary supplement by Hawaii Pharm with 1 active ingredient. Its ingredients are commonly taken for heart palpitations, mild heart symptoms, anxiety and nervous tension.Based on those ingredients, 10 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Cereus Inflorescence Extract, Dry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Cereus by Hawaii Pharm

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

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HelloPharmacist Scorecard of Cereus 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 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.

This product contains one active ingredient: cereus inflorescence extract, dry. Cereus is a flowering plant extract used in herbal medicine.

The liquid also holds alcohol, water, and glycerin as inactive ingredients to carry and preserve the extract.

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 Cereus product and its label doesn't state a use — see Cereus'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.

We don't hold effectiveness ratings for cereus inflorescence extract in our data, so we can't tell you whether it works for any particular purpose based on the evidence we have on file.

The evidence, ingredient by ingredient Cereus

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.

Cereus comes with important safety cautions. There's limited safety data overall, and because it may affect the heart, professional guidance before you use it is important.

The safety data advises against use during pregnancy and while breastfeeding — there isn't enough reliable information to know it's safe in either situation. If you take this by mouth, some people have reported burning of the mouth, queasiness, nausea, vomiting, and diarrhea.

If applied to skin, it may cause itching and skin pustules.

Side effects, ingredient by ingredient Cereus

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 — Cereus.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: heart-rhythm medications.
  • For scale: 10 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 you start cereus, double-check with your doctor or pharmacist if you take digoxin (Lanoxin) for your heart or an MAOI antidepressant — both carry moderate interaction risk with this product. Run your medications through the search tool on this page to confirm.

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.

Cereus is a single-ingredient herbal extract with notable interactions involving heart medications and certain antidepressants, plus limited safety data overall. If you take digoxin, an MAOI, or any other regular medications, or if you're pregnant or breastfeeding, talk with your doctor or pharmacist before using this product.

They can help you decide 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 Nov 22, 2023.

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 Cereus, straight from the product label.

Brand Hawaii Pharm
Barcode (UPC) 840253612137
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Nov 22, 2023
DSLD ID 301350
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 Cereus 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
840253612137
IngredientAmount% DV
Cereus Inflorescence Extract, Dry983 mg--

Other ingredients: Alcohol, Water, Glycerin

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.
Brand IP Statement(s)

Hawaii Pharm Herbal Extract Highest quality since 2008

Suggested/Recommended/Usage/Directions

Suggested use: Shake well before using. For adults add about 20-30 drops (0.7-1 mL, one full squeeze of the dropper bulb) to some juice or water, up to 4 times a day.

Precautions

Warning: We recommend to seek expert medical advice before taking.

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 medications.

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

May affect the ability to drive and operate machinery. May have contraindications, can cause side effects and adverse reactions. Do not use if seal is broken or missing.

Keep out of the reach of children!

Storage

Store in a cool dry place.

Seals/Symbols

cGMP Made in compliance with cGMP 21 CFR 111 in an FDA registered and inspected facility.

Organic Alcohol Based USA Made in United States of America

FDA Disclaimer Statement

This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure or prevent any disease.

General Statements

Scan this QR-code to get 15% discount on your next purchase. Limited time deal.

Formula

Cereus grandifloras

Organic Alcohol Based

Formulation

Only natural ingredients Purity is laboratory tested and verified

All the raw materials are gluten-free by their nature No artificial colors, flavors, or preservatives

Not tested on animals

Organic Alcohol Based

Made in USA, Hawaii

FDA Statement of Identity

Herbal Supplement

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

See for yourself

Cereus by Hawaii Pharm label

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

Cereus 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 Cereus 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.

Cereus Inflorescence Extract, Dry

Interacts with
10 drugs
983 mg per serving Form: Cereus grandifloras Inflorescence Extract, Dry

Cereus (often called night-blooming cereus) is a cactus traditionally used in folk and homeopathic medicine for heart-related complaints like palpitat...

Cereus Inflorescence Extract, Dry monograph & interactions

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

Interaction report

Cereus by Hawaii Pharm Drug Interactions

Want to check YOUR meds against Cereus?

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
10Drugs
10 Moderate

Ingredients driving the most interactions

Cereus Inflorescence Extract, Dry 10

Individual Drug Interactions

The ingredients in Cereus interact with 10 drugs. Click any drug to see the details.

1 of the 1 ingredient in Cereus interact with drugs. Each result below shows which ingredient is responsible. Cereus Inflorescence Extract, Dry

Each ingredient & the kinds of drugs it affects

For each ingredient in Cereus 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.

Cereus Inflorescence Extract, Dry2 drug types · 10 drugs

Digoxin (Lanoxin)

Cereus may potentiate the actions of cardiac glycosides and may enhance the effect of other cardiac drugs.

Likelihood Possible Evidence D
Monoamine Oxidase Inhibitors (Maois)

Theoretically, excessive doses of cereus may interact with MAOIs, because of the tyramine content.

Likelihood Possible Evidence D
Cereus Inflorescence Extract, Dry full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Cereus, from the product label.

Hawaii Pharm

See all Hawaii Pharm products
Name
Hawaii Pharm LLC
Street Address
510 Sumner St. Ste. 613
City
Honolulu
State
HI
ZipCode
96817
Phone Number
888-854-2924
Web Address
www.hawaiipharm.com
Pharmacist Counseling Corner

Cereus by Hawaii Pharm: Common Questions

Does Cereus by Hawaii Pharm interact with any medications?
Yes. Based on its ingredients, Cereus has a known interaction with 10 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Cereus 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 this if I'm pregnant?
The safety data advises against it — there isn't enough reliable information to know cereus is safe during pregnancy. Talk with your doctor or pharmacist about what's right for you.
Can I take this if I'm breastfeeding?
No reliable safety data exists for breastfeeding, so you should avoid this product while nursing. Check with your doctor or pharmacist if you have questions.
What side effects might I experience?
By mouth, some people report burning of the mouth, queasiness, nausea, vomiting, and diarrhea. If you apply it to skin, it may cause itching and skin pustules.
Why does this product have alcohol in it?
Alcohol is an inactive ingredient used to carry and preserve the cereus extract in liquid form.
Is this extract effective for anything?
We don't have effectiveness data on file for cereus inflorescence extract, so I can't tell you from our records whether it works for any specific purpose.

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

Not sure if Cereus is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Cereus label
Go deeper

The Full Monographs Behind Cereus’s Ingredients

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

Herb & supplement monograph

Cereus

Interacts with 10 drugs

Cereus (often called night-blooming cereus) is a cactus traditionally used in folk and homeopathic medicine for heart-related complaints like palpitations. High-quality human evidence suppor...

Read the full Cereus monograph →
Sources

Sources & How We Checked

Cereus'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.

Cereus 3 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  3. Fetrow CW, Avila JR. Professional's Handbook of Complementary & Alternative Medicines. 1st ed. Springhouse, PA: Springhouse Corp., 1999.

See these in context on the Cereus 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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