Eleuthero (Siberian Ginseng)
Commonly used for
StressEnergy
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What is it? / Overview
Eleutherosides exert anti-inflammatory, immunomodulatory, and neuroprotective effects, which together plausibly reduce fatigue and enhance stress tolerance -- the fatigue/asthenia indication has EMA traditional-use approval, but a comprehensive 2025 review found clinical evidence still limited by trial heterogeneity and inconsistent product standardization across studies.
How is it used? / Administration
Form: Eleutherococcus senticosus root extract standardized to eleutherosides B and E -- not a true Panax ginseng, a distinct plant
Typical dose studied: Varies by product, standardized to eleutheroside markers
Timing: Daytime; often cycled as an adaptogen
Not a true Panax ginseng -- a completely different plant genus despite the common 'Siberian ginseng' name. Product standardization varies widely, which is a large part of why trial results are inconsistent.
How well does it work? / Evidence
? Emerging / limited evidence
Who should avoid it?
Avoid with: Primary hypertension / High blood pressure; Bipolar disorder; Generalized anxiety disorder; Organ transplant (on immunosuppression)
Interacts with: Digoxin -- a case report of raised digoxin levels; worth monitoring if combined; Immunosuppressants -- theoretical antagonism given immunomodulatory activity; Antidiabetic agents, sedatives/stimulants -- theoretical additive effects
Already taking it? EMA-approved for traditional use in fatigue/weakness (asthenia), though a recent comprehensive review found the human clinical evidence base limited by trial heterogeneity and poor product standardization -- reasonable to continue, but the digoxin-monitoring point is worth raising with a doctor if relevant.
Research & references
Patyra A et al. (2025). Eleutherococcus Root: A Comprehensive Review of Its Phytochemistry and Pharmacological Potential in the Context of Its Adaptogenic Effect. Frontiers in Pharmacology. Brendler T et al. (2021). Botanical drugs and supplements affecting the immune response in the time of COVID-19. Phytotherapy Research.
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