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HerbModerate Evidence

Hawthorn Berry

Crataegus monogyna

The leading herbal medicine for cardiovascular health, with clinical trials supporting improvement in mild heart failure symptoms, blood pressure reduction, and coronary blood flow.

Known Health Benefits

Cardiovascular support and protection
May reduce blood pressure
Coronary blood flow improvement
Antioxidant protection for cardiac tissue

Active Compounds

Oligomeric proanthocyanidins (OPCs), flavonoids, vitexin, quercetin glycosides

Dosage Guidance

160–1800 mg standardized extract daily (WS 1442 extract)

Always consult a healthcare provider for personalized dosing.

Potential Side Effects

Mild GI upset, dizziness; effects may take 4–8 weeks to appear

Known Drug Interactions

MAJOR interaction with digoxin; interacts with antihypertensives and nitrates

Evidence Classification

Moderate Evidence

Supported by cohort studies, case-control studies, or multiple observational studies with consistent findings.

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This entry is for educational purposes only. It is not medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement regimen, especially if you take medications or have health conditions.