What is the recommended dosage for Hawthorn?

General: 450-900 mg/day standardized extract (WS 1442 or LI 132); Standardization: 18.75% OPCs or 2.2% flavonoids

What are the side effects of Hawthorn?

Potential side effects include: Generally well-tolerated, Dizziness, Nausea, Gastrointestinal discomfort, Headache.

What is hawthorn and how may it support cardiovascular health?

Hawthorn (Crataegus) has been used for centuries in traditional medicine for heart conditions. It contains flavonoids and oligomeric proanthocyanidins that may improve coronary blood flow, increase cardiac contractility, and reduce blood pressure. Several European trials showed benefits for mild heart failure symptoms.

What dosage of hawthorn has been studied in cardiovascular trials?

Clinical studies have used 160–1,800 mg per day of hawthorn leaf and flower extract standardized to 2.2% flavonoids or 18.75% OPCs. The SPICE trial used WS 1442 extract at 900 mg daily for 24 months in heart failure patients. Lower doses of 160–480 mg daily are used for milder cardiovascular support.

What are the potential side effects of hawthorn?

Hawthorn is generally well tolerated. Mild side effects include dizziness, nausea, and digestive discomfort. It may enhance the effects of cardiac glycosides (digoxin), blood pressure medications, and vasodilators. Individuals taking heart medications should consult a cardiologist before using hawthorn.

Hawthorn
Hawthorn

herb

다른 이름: Crataegus, Crataegus monogyna, Crataegus laevigata, Hawthorne, Whitethorn

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About

Hawthorn berry/leaf/flower extract contains OPCs and flavonoids that improve cardiac contractile force without increasing oxygen demand. A 2008 Cochrane review of 14 RCTs (1,110 heart failure patients) found hawthorn significantly improved exercise tolerance and reduced dyspnea. Hawthorn is approved by the German Commission E for declining cardiac function (NYHA I-II).

How It Works

Oligomeric procyanidins and flavonoids inhibit phosphodiesterase-3 (PDE3) increasing cardiac cAMP and improving contractile force (positive inotropic effect without increasing oxygen demand); enhances coronary artery blood flow via endothelium-dependent vasodilation; reduces peripheral vascular resistance; antioxidant flavonoids protect against myocardial ischemia-reperfusion injury; mild ACE-inhibitory activity.

Evidence For Conditions

건강 상태	등급	연구	참여자
Heart Failure	B	14	3800	보기 →
High Blood Pressure (Hypertension)	C	4	300	보기 →

Side Effects

Generally well-tolerated
Dizziness
Nausea
Gastrointestinal discomfort
Headache

Drug & Supplement Interactions

Cardiac glycosides (digoxin — may enhance inotropic effects)
Antihypertensives (additive blood pressure lowering)
Beta-blockers (additive cardiac effects)
PDE5 inhibitors (additive vasodilation)

복용 중인 모든 건강기능식품에 대해 반드시 의료 전문가에게 알리십시오.

Related Ingredients

Garlic Curcumin Berberine Red Yeast Rice

핵심 정보

용량: General: 450-900 mg/day standardized extract (WS 1442 or LI 132); Standardization: 18.75% OPCs or 2.2% flavonoids
제형: capsule tablet liquid tincture dried berry tea
천연 원료: Hawthorn berries, leaves, and flowers (Crataegus species)
상한 섭취량: Not formally established; up to 1,800 mg/day used in the SPICE trial
권장 복용 시간: With meals; effects require 6-8 weeks of continuous use

근거 요약

Heart Failure B

High Blood Pressure (Hypertension) C

FDA 면책 조항: 이 내용은 미국 식품의약국(FDA)의 평가를 받지 않았습니다. 이 웹사이트의 제품 및 정보는 질병의 진단, 치료, 완치 또는 예방을 목적으로 하지 않습니다. 제시된 근거 등급은 발표된 동료 심사 연구에 대한 우리의 분석에 기반하며, 의학적 조언을 구성하지 않습니다. 건강기능식품 복용을 시작하기 전에 반드시 의료 전문가와 상담하십시오.