Echinacea (Echinacea purpurea)

Also known as: echinacea purpurea, purple coneflower, echinacea angustifolia

BBuilding Evidence622 studies referenced

Latest evidence update: 2025-02-28

Common dosage

300-600mg standardized extract, 3-4x/day at symptom onset

Description

Herbal immunomodulator with RCT support for reducing upper respiratory tract infection duration and incidence. Cochrane-adjacent evidence concentrates on the first 24 hours of symptoms. Best in standardized extract form.

Safety & interactions

May cause mild GI upset. Avoid with autoimmune conditions, immunosuppressants, and known Asteraceae allergies (ragweed, marigolds).

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Expected outcomes

Outcome estimates are derived from published research and represent population-level associations, not guaranteed individual results. Consult a healthcare professional before making decisions based on these estimates.

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Order Echinacea (Echinacea purpurea)

Recommended: 300-600mg standardized extract, 3-4x/day at symptom onset

Protocols featuring Echinacea (Echinacea purpurea)

Sick Day RecoveryBBuilding Evidence

Questions about Echinacea (Echinacea purpurea)

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Referenced studies (2)

ProtocolEngine provides general health information based on published research. This is not medical advice. Consult a healthcare professional before starting any supplement or health protocol.