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Dietary supplement

Scotch Broom Ingredients & Drug Interactions

by Herb Pharm

Scotch Broom label
See full label image
Liquid Category: Botanical
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Scotch Broom 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: Major

Scotch Broom is a dietary supplement by Herb Pharm with 1 active ingredient. Its ingredients are commonly taken for heart rhythm and circulation complaints, diuretic (increasing urine), heavy menstrual bleeding.Based on those ingredients, 12 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Scotch Broom flowering top (Cytisus scoparius) 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 Scotch Broom by Herb Pharm

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

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HelloPharmacist Scorecard of Scotch Broom by Herb 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 11, 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: Scotch Broom flowering top extract from the plant Cytisus scoparius. The liquid also includes certified organic alcohol and distilled water 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

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: heart rhythm and circulation support.
  • We looked for evidence on: circulatory health, cardiac rhythm, edema.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

We have no effectiveness ratings on file for Scotch Broom, so the evidence supporting its use isn't established in our data.

The evidence, ingredient by ingredient Scotch Broom

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.

Scotch broom is generally regarded as unsafe for use. It contains toxic alkaloids that can affect your heart, and the active alkaloid sparteine becomes toxic at high doses—roughly 30 grams of the herb or more.

Toxicity symptoms include dizziness, headache, heart palpitations, tingling in your limbs, weakness in your legs, sweating, drowsiness, dilated pupils, and eye muscle problems. You may also experience nausea, diarrhea, and vertigo.

Scotch broom is considered likely unsafe in pregnancy because it may stimulate the uterus. It's also likely unsafe while breastfeeding due to the toxic compounds it contains and insufficient safety data.

Talk with your doctor or pharmacist before considering this product, especially if you're pregnant, nursing, or have any heart condition.

Side effects, ingredient by ingredient Scotch Broom

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Scotch Broom.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: lithium.
  • For scale: 12 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 Scotch Broom, double-check with your pharmacist if you take haloperidol (Haldol) or quinidine (Quinidex)—both carry a Major risk of circulatory collapse. Also flag any MAOIs (older antidepressants) or lithium (a mood stabilizer) you're on.

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

Scotch broom carries major interaction risks with certain heart and psychiatric medications, plus serious toxicity concerns at modest doses. Because the data shows it's regarded as unsafe for most people and has documented risks that may outweigh any benefit, you should talk with your pharmacist or doctor before using it—and definitely avoid it if you're pregnant or breastfeeding.

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 May 22, 2015.

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 Scotch Broom, straight from the product label.

Brand Herb Pharm
Barcode (UPC) 090700002251
Net contents 4 fl. Oz.; 120 mL
Market status On market
Date entered into DSLD May 22, 2015
DSLD ID 45976
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
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 Scotch Broom by Herb 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:
0.7 mL
Servings per container
168
UPC/BARCODE
090700002251
IngredientAmount% DV
Scotch Broom flowering top (Cytisus scoparius) extract663 mg--

Other ingredients: certified organic Alcohol, distilled Water

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

SUGGESTED USE Shake Well Before Using Add one full squeeze of the dropper bulb to 2 oz. of water or juice, two or three times per day. Best taken between meals.

Precautions

Keep Out of the Reach of Children

Caution: Do not take in pregnancy or nursing.

Storage

Store away from heat & light

General Statements

SYSTEM RESTORATION Cardio & Circulatory

Dry herb / menstruum ratio: 1:5

FDA Statement of Identity

HERBAL SUPPLEMENT

Formulation

GLUTEN-FREE

Formula

Scotch Broom Liquid Extract

We prepare our Scotch Broom Extract from the flowering top of Cytisus scoparius shrubs which are Sustainably Wildcrafted in their natural habitat in southern Oregon.

General

007

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

See for yourself

Scotch Broom by Herb Pharm label

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

Scotch Broom 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 Scotch Broom by Herb 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 container168 Amounts shown are per serving.

Scotch Broom flowering top (Cytisus scoparius) extract

Interacts with
12 drugs
663 mg per serving

Scotch Broom is a flowering shrub that has been used in folk medicine for heart and circulation complaints, but it contains potentially toxic alkaloid...

Scotch Broom flowering top (Cytisus scoparius) extract monograph & interactions

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

Interaction report

Scotch Broom by Herb Pharm Drug Interactions

Want to check YOUR meds against Scotch Broom?

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
12Drugs
11 Major 1 Moderate

Ingredients driving the most interactions

Scotch Broom flowering top (Cytisus scoparius) extract 12

Individual Drug Interactions

The ingredients in Scotch Broom interact with 12 drugs. Click any drug to see the details.

1 of the 1 ingredient in Scotch Broom interact with drugs. Each result below shows which ingredient is responsible. Scotch Broom flowering top (Cytisus scoparius) extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Scotch Broom 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.

Scotch Broom flowering top (Cytisus scoparius) extract4 drug types · 12 drugs

Haloperidol (Haldol)

Haloperidol (Haldol) inhibits sparteine metabolism, increasing the risk of adverse effects including circulatory collapse.

Likelihood Probable Evidence D
Monoamine Oxidase Inhibitors (Maois)

Scotch broom flower contains tyramine. Combined use with MAOIs might cause a hypertensive crisis.

Likelihood Probable Evidence D
Quinidine

Quinidine (Quinidex) inhibits the metabolism of sparteine, a constituent of Scotch broom. This might increase levels of sparteine and increase the risk of adverse effects, including circulatory collapse.

Likelihood Probable Evidence D
Lithium

Scotch broom is thought to have diuretic properties. Theoretically, due to these potential diuretic effects, scotch broom might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
Scotch Broom flowering top (Cytisus scoparius) extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Scotch Broom, from the product label.

Herb Pharm

See all Herb Pharm products
Name
Herb Pharm
City
Williams
State
OR
ZipCode
97544
Phone Number
800-348-4372
Web Address
www.herb-pharm.com
Pharmacist Counseling Corner

Scotch Broom by Herb Pharm: Common Questions

Does Scotch Broom by Herb Pharm interact with any medications?
Yes. Based on its ingredients, Scotch Broom has a known interaction with 12 medications, including 11 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Scotch Broom 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 Scotch Broom safe to use?
The data indicates Scotch broom is generally regarded as unsafe for use. It contains toxic alkaloids, and toxicity can happen at doses of 30 grams or more. The potential risks—dizziness, heart palpitations, weakness, and neurologic symptoms—may outweigh any benefits. Talk with your pharmacist before considering it.
What are the side effects of Scotch Broom?
At toxic doses (roughly 30 grams or more), Scotch broom can cause dizziness, headache, heart palpitations, tingling in your extremities, leg weakness, sweating, drowsiness, dilated pupils, and eye movement problems. Nausea, diarrhea, and vertigo may also occur.
Can I take Scotch Broom if I'm pregnant?
No. Scotch broom is considered likely unsafe during pregnancy because it may stimulate the uterus. Avoid it if you're pregnant or planning to become pregnant.
Is it safe to use Scotch Broom while breastfeeding?
No. Scotch broom is considered likely unsafe while breastfeeding. It contains toxic compounds, and there isn't enough safety data to know whether it would harm your baby. Avoid it while nursing.
What is Scotch Broom used for?
We don't have effectiveness ratings or documented uses for Scotch broom in our data, so we can't say what it's intended to treat based on the product facts we hold.
Does this product contain any fillers?
The liquid base includes certified organic alcohol and distilled water as inactive ingredients. The single active ingredient is the Scotch broom extract itself.

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.

Scotch Broom label
Go deeper

The Full Monographs Behind Scotch Broom’s Ingredients

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

Herb & supplement monograph

Scotch Broom

Interacts with 12 drugs

Scotch Broom is a flowering shrub that has been used in folk medicine for heart and circulation complaints, but it contains potentially toxic alkaloids and there is no solid scientific evide...

Read the full Scotch Broom monograph →
Sources

Sources & How We Checked

Scotch Broom'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 11 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.

Scotch Broom 11 references
  1. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  3. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
  4. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  5. Martindale W. Martindale the Extra Pharmacopoeia. Pharmaceutical Press, 1999.
  6. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  7. Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.
  8. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  9. Freeman, R. K. and Mishell, D. R., Jr. Induction of labor with sparteine sulfate for premature rupture of the fetal membranes near term. A double-blind study. Pac.Med Surg. 1968;76(1):43-47.
  10. Alexander, J. A. and Franklin, R. R. Effects of sparteine sulfate on uterine activity. Tex.Med 1966;62(8):54-56.
  11. Van Voorhis, L. W., Dunn, L. J., and Heggen, D. Effect of sparteine sulfate on amniotomy induction. A double blind evaluation. Am.J Obstet.Gynecol. 1-15-1966;94(2):230-233. PubMed

See these in context on the Scotch Broom 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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