Major interaction on record — check this product against your medications before combining. Based on 1 of 2 ingredients. Check your meds →
Dietary supplement

Hawthorn Blend Ingredients & Drug Interactions

by Herb Pharm

Hawthorn Blend 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 Hawthorn Blend 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

Hawthorn Blend is a dietary supplement by Herb Pharm with 2 active ingredients. Its ingredients are commonly taken for heart failure symptoms, high blood pressure, chest pain (angina).Based on those ingredients, 191 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Hawthorn (Crataegus spp.) 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 Hawthorn Blend by Herb Pharm

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

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HelloPharmacist Scorecard of Hawthorn Blend 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 Aug 6, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 2 active ingredients.
  • “Proprietary Extract Blend” is a proprietary blend — the label gives one combined amount (663 mg) without saying how much of each component you get.

Hawthorn Blend contains one active ingredient: a hawthorn (Crataegus spp.) extract. The liquid formula also includes certified organic cane alcohol and distilled water as inactive ingredients to deliver the extract.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Hawthorn's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: cardio and circulatory system restoration.
  • We looked for evidence on: Angina, Arrhythmia, Cardiovascular disease (CVD), Congestive heart failure (CHF), Hypertension, Chest pain — and 1 related terms.
  • The closest evidence on file: Hawthorn is rated "Insufficient Reliable Evidence To Rate" for Angina (Natural Medicines).
  • Also on file: Hawthorn is rated "Insufficient Reliable Evidence To Rate" for Arrhythmia, Cardiovascular disease (CVD), Congestive heart failure (CHF), Hypertension.

The evidence for hawthorn in angina, anxiety, irregular heartbeat (arrhythmia), atherosclerosis, cardiovascular disease, and cognitive function is insufficient—we don't have enough reliable data to say whether it works for these purposes. If you're thinking about this for a heart-related concern, talk it over with your doctor about what the current science actually supports and whether it makes sense for you.

The evidence, ingredient by ingredient Hawthorn

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.

Hawthorn is generally well tolerated when used as directed, but because it affects your heart, any use needs medical oversight if you have a heart condition. The safety data we have doesn't support use during pregnancy or breastfeeding—there isn't enough information either way, so you'd want to talk with your doctor or pharmacist if you're pregnant, planning to become pregnant, or nursing.

Serious side effects are rare but have been reported: multiorgan allergic reactions leading to kidney failure, breathing problems like bronchitis, and heart rhythm changes like palpitations or a racing heart in a small number of people in large clinical trials.

Side effects, ingredient by ingredient Hawthorn

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 — Hawthorn.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; heart-rhythm medications.
  • For scale: 191 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 take this hawthorn blend, check with your doctor or pharmacist if you're on nitrates or phosphodiesterase-5 inhibitors like sildenafil—both are Major interactions that can cause dangerously low blood pressure. Also double-check if you take beta-blockers, calcium channel blockers, digoxin (Lanoxin), or any blood thinners or antiplatelet drugs, which all have Moderate interactions with hawthorn.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Major medication interactions have been identified, and safety information is well characterized.

Hawthorn Blend is worth considering if you're exploring herbal support for heart health, but it's not a substitute for your doctor's treatment plan and absolutely requires a conversation with your own doctor or pharmacist before you start—especially if you take any heart or blood-pressure medication, blood thinners, or ED drugs. Because it interacts with so many medications and affects your cardiovascular system, it's a product you need to clear with your healthcare provider first.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 22, 2019.

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 Hawthorn Blend, straight from the product label.

Brand Herb Pharm
Barcode (UPC) 090900000781
Net contents 4 fl. Oz.; 120 mL
Market status On market
Date entered into DSLD Dec 22, 2019
DSLD ID 210172
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 Hawthorn Blend 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
090900000781
IngredientAmount% DV
Proprietary Extract Blend663 mg--
Hawthorn (Crataegus spp.) extract0 NP--
Hawthorn (Crataegus spp.) extract0 NP--

Other ingredients: certified organic Cane 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 1 full squeeze of the dropper bulb to 2 oz. of water of juice, 2 to 4 times per day. Best taken between meals.

Precautions

Keep out of the reach of children

Storage

Store away from heat & light

Formula

Crataegus spp.

Hawthorn Blend Liquid Extract

By blending the flowering herb & berry of Crataegus spp. trees, we produce an extract that is optimally concentrated in Hawthorn's bioactive compounds.

Formulation

System Restoration Cardio & Circulatory

Gluten-free

Dry herb/menstruum ratio: 1:5

FDA Statement of Identity

Herbal Supplement

FDA Disclaimer Statement

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

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

See for yourself

Hawthorn Blend by Herb Pharm label

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

Hawthorn Blend 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 Hawthorn Blend by Herb Pharm

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size0.7 mL Dosage formLiquid Servings per container168 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Proprietary Extract Blend

663 mg per serving

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

Interaction report

Hawthorn Blend by Herb Pharm Drug Interactions

Want to check YOUR meds against Hawthorn Blend?

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
191Drugs
14 Major 177 Moderate

Ingredients driving the most interactions

Hawthorn (Crataegus spp.) extract 191

Individual Drug Interactions

The ingredients in Hawthorn Blend interact with 191 drugs. Click any drug to see the details.

1 of the 2 ingredients in Hawthorn Blend interact with drugs. Each result below shows which ingredient is responsible. Hawthorn (Crataegus spp.) extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Hawthorn Blend 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.

Hawthorn (Crataegus spp.) extract6 drug types · 191 drugs

Nitrates

Theoretically, concomitant use might cause additive coronary vasodilatory effects.
Some evidence shows that hawthorn might lower blood pressure due to vasodilatory effects.

Likelihood Probable Evidence D
Phosphodiesterase-5 Inhibitors

Theoretically, concomitant use might result in additive vasodilation and hypotension.
Hawthorn might inhibit PDE-5 and cause vasodilation.

Likelihood Probable Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, hawthorn may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro and animal research shows that hawthorn can inhibit platelet aggregation. However, its effect in humans is unclear. One observational study shows that patients taking hawthorn shortly before undergoing coronary artery bypass graft (CABG) surgery or valve replacement surgery have a 10% incidence of postoperative bleeding, compared with 1% in those who never consumed hawthorn extract. However, clinical research shows that taking a specific preparation of dried hawthorn leaves and flowers (Crataesor, Soria Natural Lab) 800 mg three times daily for 15 days does not affect platelet aggregation or levels of thromboxane B2, the metabolite of thromboxane A2, in healthy humans.

Likelihood Possible Evidence D
Beta-Blockers

Theoretically, concomitant use might cause additive effects on blood pressure and heart rate.
Some evidence shows that hawthorn might lower blood pressure and heart rate.

Likelihood Possible Evidence D
Calcium Channel Blockers

Theoretically, concomitant use might cause additive coronary vasodilation and hypotensive effects.
Some evidence shows that hawthorn might lower blood pressure due to vasodilatory effects.

Likelihood Possible Evidence D
Digoxin (Lanoxin)

Theoretically, hawthorn might potentiate the effects and adverse effects of digoxin.
Hawthorn appears to improve cardiac output; however, hawthorn does not appear to affect digoxin pharmacokinetics. Case reports suggest that at least one species of hawthorn root extract (Crataegus mexicana) may produce adverse effects similar to digoxin and can cross-react with digoxin assays, leading to falsely elevated plasma digoxin levels.

Likelihood Possible Evidence D
Hawthorn (Crataegus spp.) extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Hawthorn Blend, 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

Hawthorn Blend by Herb Pharm: Common Questions

Does Hawthorn Blend by Herb Pharm interact with any medications?
Yes. Based on its ingredients, Hawthorn Blend has a known interaction with 191 medications, including 14 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Hawthorn Blend contains 2 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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 while pregnant or breastfeeding?
The safety data isn't there to say it's okay—we don't have enough information for pregnancy or breastfeeding. Talk with your doctor or pharmacist for personalized advice on whether to use it.
What is hawthorn actually supposed to do?
Hawthorn is traditionally used for heart and cardiovascular support, but we don't have enough reliable evidence yet to confirm it works for angina, irregular heartbeat, atherosclerosis, cardiovascular disease, anxiety, or cognitive function.
What are the side effects?
Hawthorn is generally well tolerated, but a small number of people have reported heart rhythm changes like palpitations, breathing issues, and in rare cases, serious allergic reactions affecting multiple organs. If you have a heart condition, medical supervision is important.
Can I take this with my heart medications?
That depends on which medications you take. Hawthorn interacts with nitrates, ED drugs, beta-blockers, calcium channel blockers, digoxin, and blood thinners—check your exact medications with your doctor or pharmacist before starting.
What's in the bottle besides hawthorn?
Certified organic cane alcohol and distilled water—they're there to deliver the hawthorn extract in liquid form.

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.

Hawthorn Blend label
Go deeper

The Full Monographs Behind Hawthorn Blend’s Ingredients

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

Herb & supplement monograph

Hawthorn

Interacts with 191 drugs

Hawthorn is a plant traditionally used for heart-related complaints, and some studies suggest it may modestly help symptoms of mild heart failure when added to standard care. However, the ev...

Read the full Hawthorn monograph →
Sources

Sources & How We Checked

Hawthorn Blend'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 25 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.

Hawthorn 25 references
  1. Tauchert M. Efficacy and safety of crataegus extract WS 1442 in comparison with placebo in patients with chronic stable New York Heart Association class-III heart failure. Am Heart J 2002;143:910-5. PubMed
  2. Pittler MH, Schmidt K, Ernst E. Hawthorn extract for treating chronic heart failure: meta-analysis of randomized trials. Am J Med 2003;114:665-74.. PubMed
  3. Chang Q, Zuo Z, Harrison F, Chow MS. Hawthorn. J Clin Pharmacol 2002;42:605-12.
  4. Holubarsch CJ, Colucci WS, Meinertz T, et al. The efficacy and safety of Crataegus extract WS 1442 in patients with heart failure: the SPICE trial. Eur J Heart Fail 2008;10:1255-63. PubMed
  5. Pittler MH, Guo R, and Ernst E. Hawthorn extract for treating chronic heart failure. Cochrane.Database.Syst Rev 2008:CD005312. PubMed
  6. Zick SM, Vautaw BM, Gillespie B, Aaronson KD. Hawthorn Extract Randomized Blinded Chronic Heart Failure (HERB CHF) trial. Eur J Heart Fail. 2009;11:990-99. PubMed
  7. Werner NS, Duschek S, and Schandry R. D-camphor-crataegus berry extract combination increases blood pressure and cognitive functioning in the elderly - a randomized, placebo controlled double blind study. Phytomedicine. 2009;16:1077-82. PubMed
  8. Dalli E, Colomer E, Tormos MC, et al. Crataegus laevigata decreases neutrophil elastase and has hypolipidemic effect: a randomized, double-blind, placebo-controlled trial. Phytomedicine. 6-15-2011;18:769-75. PubMed
  9. Maek-a-nantawat W, Phonrat B, Dhitavat J, et al. Safety and efficacy of CKBM-A01, a Chinese herbal medicine, among asymptomatic HIV patients. Southeast Asian J Trop.Med Public Health 2009;40:494-501.
  10. Asher GN, Viera AJ, Weaver MA, et al. Effect of hawthorn standardized extract on flow mediated dilation in prehypertensive and mildly hypertensive adults: a randomized, controlled cross-over trial. BMC.Complement Altern.Med 2012;12:26. PubMed
  11. Walker AF, Marakis G, Simpson E, et al. Hypotensive effects of hawthorn for patients with diabetes taking prescription drugs: a randomised controlled trial. Br J Gen.Pract 2006;56:437-43.
  12. Daniele C, Mazzanti G, Pittler MH, et al. Adverse-event profile of Crataegus spp.: a systematic review. Drug Saf 2006;29:523-35. PubMed
  13. Tankanow R, Tamer HR, Streetman DS, et al. Interaction study between digoxin and a preparation of hawthorn (Crataegus oxyacantha). J.Clin.Pharmacol. 2003;43:637-42. DOI
  14. Tauchert, M., Gildor, A., and Lipinski, J. [High-dose Crataegus extract WS 1442 in the treatment of NYHA stage II heart failure]. Herz 1999;24(6):465-474.
  15. Horoz, M., Gok, E., Genctoy, G., Ozcan, T., Olmaz, R., Akca, M., Kiykim, A., and Gurses, I. Crataegus orientalis associated multiorgan hypersensitivity reaction and acute renal failure. Intern.Med 2008;47(23):2039-2042. PubMed
  16. Dalli, E., Valles, J., Cosin-Sales, J., Santos, M. T., Moscardo, A., Milara, J., and Sotillo, J. F. Effects of hawthorn (Crataegus laevigata) on platelet aggregation in healthy volunteers. Thromb.Res 2011;128(4):398-400. PubMed
  17. Rogov VD. [Toxiderma due to the fruits of the hawthorn]. Vestn Dermatol Venerol 1984;7(7):46-47.
  18. Loew D, Albrecht M, and Podzuweit H. Efficacy and tolerability of a Hawthorn preparation in patients with heart failure Stage I and II according to NYHA - a surveillance study. Phytomedicine 1996;3(Suppl 1):92.
  19. Rababa'h AM, Altarabsheh SE, Haddad O, Deo SV, Obeidat Y, Al-Azzam S. Hawthorn Herb Increases the Risk of Bleeding after Cardiac Surgery: An Evidence-Based Approach. Heart Surg Forum 2016;19(4):E175-9. PubMed
  20. Shatoor AS, Soliman H, Al-Hashem F, Gamal BE, Othman A, El-Menshaw N. Effect of hawthorn (Crataegus aronia syn. Azarolus (L)) on platelet function in albino wistar rats. Thromb Res 2012;130(1):75-80. PubMed
  21. Vibes J, Lasserre B, Gleye J, Declume C. Inhibition of thromboxane A2 biosynthesis in vitro by the main components of Crataegus oxyacantha (hawthorn) flower heads. Prostaglandins Leukot Essent Fatty Acids 1994;50(4):173-5. PubMed
  22. Rogers KL, Grice ID, Griffiths LR. Inhibition of platelet aggregation and 5-HT release by extracts of Australian plants used traditionally as headache treatments. Eur J Pharm Sci 2000;9(4):355-63. PubMed
  23. Zhou CC, Huang XX, Gao PY, et al. Two new compounds from Crataegus pinnatifida and their antithrombotic activities. J Asian Nat Prod Res 2014;16(2):169-74.
  24. Palmer KG, Lebin JA, Cronin MT, Mazor SS, Burns RA. Crataegus mexicana (Tejocote) Exposure Associated with Cardiotoxicity and a Falsely Elevated Digoxin Level. J Med Toxicol. 2019;15(4):295-298. PubMed
  25. Espinosa J, Bassett R, Lucerna A, Finn D. Hawthorne root (Crataegus mexicana) toxicity. Am J Emerg Med. 2024;78:242.e5-242.e6. PubMed

See these in context on the Hawthorn 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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