What is the recommended dosage for Echinacea?

General: 300-500 mg standardized extract 3x/day; Acute Use: At first sign of symptoms for 7-10 days

What are the side effects of Echinacea?

Potential side effects include: Gastrointestinal upset (nausea, stomach pain), Allergic reactions (especially in those allergic to daisies, ragweed), Headache, Dizziness.

What is echinacea and how does it support the immune system?

Echinacea is a genus of flowering plants widely studied for immune support. The species E. purpurea and E. angustifolia contain alkamides and polysaccharides that may stimulate phagocytic activity and support the body's natural defense mechanisms.

What dosage of echinacea has been used in clinical trials?

Clinical studies have used a wide range of echinacea preparations. Common doses include 300–500 mg of standardized extract three times daily, or 2.5 mL of liquid extract. The species, plant part, and extraction method significantly affect outcomes.

What are the potential side effects of echinacea?

Side effects are generally mild and may include gastrointestinal upset, rash, or allergic reactions, particularly in individuals allergic to plants in the Asteraceae family. Long-term use beyond 8 weeks is not well studied.

Echinacea
Echinacea

herb

También conocido como: Echinacea purpurea, Purple Coneflower, Echinacea angustifolia

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About

Echinacea is one of the most studied herbal immune supplements. Its alkylamide and polysaccharide constituents activate macrophages, enhance phagocytosis, and stimulate natural killer cell activity. Cochrane-reviewed meta-analyses suggest modest reduction in cold duration and severity when started at symptom onset.

How It Works

Activates macrophages, enhances phagocytosis, and stimulates NK cell activity through alkylamide and polysaccharide constituents; modulates cytokine production (TNF-alpha, IL-1, IL-6).

Evidence For Conditions

Condición	Calificación	Estudios	Participantes
Upper Respiratory Tract Infections	B	20	4000	Ver →

Side Effects

Gastrointestinal upset (nausea, stomach pain)
Allergic reactions (especially in those allergic to daisies, ragweed)
Headache
Dizziness

Drug & Supplement Interactions

Immunosuppressant medications (may counteract immunosuppression)
CYP3A4 substrates (may alter metabolism of various drugs)
Caffeine (may slow caffeine metabolism)
Anabolic steroids and methotrexate (increased hepatotoxicity risk)

Informe siempre a su profesional de salud sobre todos los suplementos que toma.Siempre informe a su profesional de salud sobre todos los suplementos que toma.

Related Ingredients

Andrographis Astragalus Garlic Olive Leaf Extract Pelargonium sidoides

Datos rápidos

Dosificación: General: 300-500 mg standardized extract 3x/day; Acute_Use: At first sign of symptoms for 7-10 days
Formas: capsule tincture liquid extract tea lozenge
Fuentes naturales: Native North American plant (supplement form only)
Límite superior: No established UL; generally used for 10 days or less
Mejor momento: At first sign of symptoms; multiple doses throughout the day

Resumen de evidencia

Upper Respiratory Tract Infections B

Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.