What is hawthorn extract?

Hawthorn extract comes from Crataegus species, typically the berries, leaves, and flowers. It is traditionally used to support cardiovascular function.

Does hawthorn extract help with heart failure?

It has been studied as an add-on to standard care for mild chronic heart failure and may help improve symptoms such as reduced exercise tolerance. It should not replace prescribed heart failure medications.

Can hawthorn extract lower blood pressure?

Hawthorn may modestly reduce blood pressure in some people, possibly by supporting blood vessel relaxation. If you take blood pressure medication, monitor for low blood pressure and discuss use with a clinician.

What is a typical hawthorn extract dose?

Common supplemental amounts are in the range of about 300–600 mg per day, depending on the product and extract standardization. Follow the label and consider medical guidance for heart conditions.

What are the main safety concerns and interactions?

Hawthorn can interact with cardiovascular drugs, including blood pressure medicines and other heart medications, potentially altering effects. Seek medical advice before use if you have heart disease, take cardiac medications, or are pregnant or breastfeeding.

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Hawthorn Extract

Moderate study situation·7/10

A higher score indicates better study conditions, but not necessarily effectiveness.

A herbal extract traditionally used for cardiovascular support, with evidence for heart failure symptom relief and possible benefits in blood pressure regulation.

Anti-inflammatory Cardiovascular Support Antioxidant Cholesterol Management

dose range

300–600 mg

Divide daily dose into 2–3 doses.

Consumption

Take standardized extract products with meals, preferably at the same times each day.

Not fat-soluble.

Best time

Morning and late afternoon/early evening dosing are common; pre-sleep dosing is generally well-tolerated.

Description

Hawthorn extract is derived from Crataegus species (berries, leaves, flowers) and has a long history of traditional use for heart health. It is studied mainly for its effects on chronic heart failure, blood pressure, and antioxidant support.

benefits

Main effects with level of evidence

Moderate

Note on evidence

Strongest evidence is for adjunctive use in mild heart failure (NYHA class II) and additional data support vasodilatory and antioxidant effects, though larger RCTs and long-term safety data are limited.

May improve symptoms of mild chronic heart failure

Moderate

Supplementation can improve exercise tolerance and reduce symptoms (e.g., shortness of breath) in patients with mild heart failure when used adjunctively with standard therapy.

Particularly relevant for: Individuals with mild (NYHA class II) chronic heart failure, under physician supervision

2 · PubMed—Hawthorn extract in CHF: A meta-analysis

May modestly lower blood pressure

Limited

Hawthorn extract may reduce blood pressure in patients with mild hypertension, possibly due to vasodilatory and endothelium-relaxing effects.

Particularly relevant for: Individuals with mild hypertension, especially with metabolic syndrome or type 2 diabetes

3 · PubMed—Hawthorn extract and blood pressure in T2DM

Antioxidant and anti-inflammatory properties

Theoretical

Contains flavonoids and procyanidins with antioxidant and anti-inflammatory activity, potentially protective for the cardiovascular system.

Particularly relevant for: General population interested in cardiovascular health

1 · NIH/NCCIH—Hawthorn 4 · PubMed—Antioxidant, lipid-lowering, and anti-inflammatory effects

Potential cholesterol-lowering effect

Limited

Preclinical studies and limited human data suggest hawthorn may help lower serum cholesterol and reduce arterial plaque formation.

Particularly relevant for: People with mild hyperlipidemia

4 · PubMed—Antioxidant, lipid-lowering, and anti-inflammatory effects

Safety & Information

Important safety information & known risks

For educational purposes only • not medical advice

Generally safe at recommended doses but may cause side effects and interact with heart medications; not recommended for use during pregnancy.

warning notices

Most commonly reported adverse effects include mild nausea, dizziness, and fatigue.
High doses or interactions with cardiac drugs can increase risk of adverse cardiovascular events.
Insufficient data to ensure safety in pregnancy or breastfeeding.
Avoid hawthorn extract during pregnancy due to insufficient safety data.
People taking digoxin, beta-blockers, or other heart medications should use hawthorn extract only under clinician supervision.
Monitor blood pressure and heart function regularly if using hawthorn with cardiovascular medications.

Known interactions with medications

May interact with digoxin, beta-blockers, calcium channel blockers, and other cardiovascular drugs.

Contraindications / special precautions

Pregnancy (safety not established)
Known allergy to Crataegus species
Current use of potent cardiovascular drugs unless supervised

interactions

Important interactions between active ingredient ↔ supplement / medication / food

Hawthorn may enhance the effects of cardiac medications and antihypertensives, requiring monitoring and caution.

Potential to potentiate cardiac glycoside effects (e.g., digoxin).

drug · Digoxin

CautionModerate

Why

Hawthorn extract may increase the effects or toxicity of digoxin through unknown or pharmacodynamic mechanisms.

recommendation

Use only under medical supervision; consider dose adjustment and monitor for digoxin toxicity.

1 · NIH/NCCIH—Hawthorn 5 · WebMD—Hawthorn

May amplify blood pressure and heart rate-lowering effects of beta-blockers.

drug · Beta-blockers

CautionLimited

Why

Vasodilatory action could enhance blood pressure reduction or bradycardia with concurrent antihypertensive/antiarrhythmic therapy.

recommendation

Monitor blood pressure and heart rate if co-administered; adjust dosage if necessary, only with physician guidance.

1 · NIH/NCCIH—Hawthorn 5 · WebMD—Hawthorn

mechanisms of action

Brief explanations of how it works

Positive inotropic and vasodilatory effects

Hawthorn may improve heart contractility and peripheral blood flow by modulating calcium influx and promoting vasodilator release in vascular endothelium.

2 · PubMed—Hawthorn extract in CHF: A meta-analysis 4 · PubMed—Antioxidant, lipid-lowering, and anti-inflammatory effects