NutriDex

The Supplement Research Compendium
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Eleuthero (Siberian Ginseng)

Eleutherococcus senticosus

Traditional adaptogen for fatigue and stress, with thin human proof.

Mixed evidence 🌿Adaptogen

✚ Updated · How we grade evidence

Evidence tier
Mixed
Research weight
Citations
7 verified / 7
Classification
Adaptogen
❝
What the evidence says. Graded mixed: small RCTs split between possible short-term benefit (subgroups with moderate fatigue, transient mood gains) and clearly null results — the better-controlled endurance trials and a fatigue RCT found no overall effect, and benefits that do appear tend to fade by 8 weeks. (Mixed evidence: Conflicting results across studies; benefit uncertain.)

What is Eleuthero (Siberian Ginseng)?

Eleuthero (Siberian Ginseng) (Eleutherococcus senticosus) is an adaptogen used for traditionally used for fatigue & weakness. NutriDex grades the human evidence as Mixed. Eleuthero, often mislabeled 'Siberian ginseng,' is a shrub in the same family as true (Panax) ginseng but contains different actives — eleutherosides rather than ginsenosides — so ginseng research does not transfer to it. Human trials are few, small, and inconsistent. A 96-person RCT in chronic fatigue found no overall benefit, with only a borderline signal in those with milder fatigue. A 144-person stress-fatigue trial showed the extract added nothing to stress-management training. A 20-person trial in elderly adults found a brief lift in social functioning at 4 weeks that vanished by 8 weeks. For exercise, a systematic review of eight studies concluded the well-designed ones show no ergogenic effect, despite flawed earlier positives. Evidence is too thin and conflicting to recommend it for any specific outcome.

Purported Benefits

✓Traditionally used for fatigue & weakness
✓Marketed for stress resilience
✓Claimed endurance support
✓Immune & convalescence folk use

Evidence by outcome

The same supplement can be well-proven for one use and unproven for another — here is the human evidence graded outcome by outcome.

OutcomeEvidenceEffectStudies
Relieve chronic fatigue / weakness96-person RCT found no overall benefit (only borderline in mild subgroup); a 20-person trial's lift faded by 8 weeks. Preliminary — no effect · negligible 2
Improve stress resilienceRCT (n=144) found the extract added nothing to stress-management training at 8 weeks. Preliminary — no effect · negligible 1
Enhance endurance/exercise performanceSystematic review: well-designed trials show no ergogenic effect; only flawed/underpowered studies reported gains. Mixed — no effect · negligible 3

Dosing & Compounds

Typical Dose
Most trials used 300–800 mg/day of standardized root extract (eleutherosides B and E) for 8 weeks; tea and tinctures are also traditional.
Active Compounds
Eleutheroside B (syringin)Eleutheroside EPolysaccharides

Safety & Cautions

Generally well tolerated short-term; reported effects include insomnia, headache, jitteriness and, rarely, elevated blood pressure. It may lower blood glucose, so it can add to antidiabetic drugs and risk hypoglycemia. A case report linked it to raised serum digoxin readings (possibly assay interference), so caution with digoxin and other cardiac glycosides. Theoretical interactions exist with sedatives, immunosuppressants, and drugs metabolized by the liver; avoid in pregnancy, breastfeeding, and uncontrolled hypertension, and stop before surgery. Educational only — always check with your doctor or pharmacist before combining Eleuthero (Siberian Ginseng) with any medicine.

Key Studies

Systematic review Goulet 2005 ✓ PubMed
Systematic review of 8 studies: methodologically sound trials show no exercise benefit; only flawed studies reported gains (up to 1200 mg/day).
RCT Schaffler 2013 ✓ PubMed
RCT (n=144): 120 mg/day extract added to stress-management training gave no significant benefit over training alone at 8 weeks.
RCT Kuo 2010 ✓ PubMed
Small crossover RCT (n=9): 800 mg/day for 8 weeks raised cycling endurance time and fat utilization; underpowered and not replicated.
RCT Hartz 2004 ✓ PubMed
RCT in 96 chronic-fatigue patients: no overall benefit vs placebo; borderline efficacy only in the milder-fatigue subgroup (P=0.04).
RCT Cicero 2004 ✓ PubMed
Double-blind RCT (n=20 elderly): 300 mg/day improved social functioning at 4 weeks, but gains did not persist to 8 weeks; well tolerated.
RCT Eschbach 2000 ✓ PubMed
RCT in trained cyclists: Eleutherococcus did not alter substrate use, heart rate, or steady-state cycling performance vs placebo.
RCT Gaffney 2001 ✓ PubMed
Trial in endurance athletes: Eleutherococcus did not favorably change stress-hormone (cortisol/testosterone) indices or immune cell counts.
7 sources cited · 7 verified Search all studies on PubMed ↗

Common questions about Eleuthero (Siberian Ginseng)

What is Eleuthero (Siberian Ginseng) used for?

Eleuthero (Siberian Ginseng) is most often taken for Traditionally used for fatigue & weakness, Marketed for stress resilience, Claimed endurance support, Immune & convalescence folk use. Traditional adaptogen for fatigue and stress, with thin human proof.

Does Eleuthero (Siberian Ginseng) work — what does the evidence say?

Mixed evidence. Conflicting results across studies; benefit uncertain. Eleuthero, often mislabeled 'Siberian ginseng,' is a shrub in the same family as true (Panax) ginseng but contains different actives — eleutherosides rather than ginsenosides — so ginseng research does not transfer to it. Human trials are few, small, and inconsistent. A 96-person RCT in chronic fatigue found no overall benefit, with only a borderline signal in those with milder fatigue. A 144-person stress-fatigue trial showed the extract added nothing to stress-management training. A 20-person trial in elderly adults found a brief lift in social functioning at 4 weeks that vanished by 8 weeks. For exercise, a systematic review of eight studies concluded the well-designed ones show no ergogenic effect, despite flawed earlier positives. Evidence is too thin and conflicting to recommend it for any specific outcome.

What is the typical dose of Eleuthero (Siberian Ginseng)?

Most trials used 300–800 mg/day of standardized root extract (eleutherosides B and E) for 8 weeks; tea and tinctures are also traditional.

Is Eleuthero (Siberian Ginseng) safe? Any cautions or side effects?

Generally well tolerated short-term; reported effects include insomnia, headache, jitteriness and, rarely, elevated blood pressure. It may lower blood glucose, so it can add to antidiabetic drugs and risk hypoglycemia. A case report linked it to raised serum digoxin readings (possibly assay interference), so caution with digoxin and other cardiac glycosides. Theoretical interactions exist with sedatives, immunosuppressants, and drugs metabolized by the liver; avoid in pregnancy, breastfeeding, and uncontrolled hypertension, and stop before surgery.

How many studies support Eleuthero (Siberian Ginseng)?

NutriDex cites 7 sources for Eleuthero (Siberian Ginseng), graded "Mixed".

Cite this page
APA

Peh, D. (2026). Eleuthero (Siberian Ginseng) (Eleutherococcus senticosus): Benefits, Dosage, Side Effects & Evidence. NutriDex — The Supplement Research Compendium. Retrieved 26 Jun 2026, from https://nutridex.info/s/eleuthero

BibTeX
@misc{nutridex_eleuthero,
  author       = {Peh, Daryl},
  title        = {Eleuthero (Siberian Ginseng) (Eleutherococcus senticosus): Benefits, Dosage, Side Effects \& Evidence},
  year         = {2026},
  howpublished = {NutriDex --- The Supplement Research Compendium},
  url          = {https://nutridex.info/s/eleuthero},
  note         = {Reviewed by Dr Daryl Peh, MBBS Singapore, MMed FM. Accessed 2026-06-26}
}

For medical claims, citing the underlying primary studies linked above is preferred. NutriDex is an educational reference, not medical advice.

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