Schisandra
Schisandra chinensis
TL;DR
Schisandra at 500-2000 mg/day of berry extract standardised for schisandrins is a genuine dual-action adaptogen: Russian and Chinese trials support improved liver enzyme profiles and mental work capacity under fatigue. It is a strong CYP3A4 inducer, which makes drug interactions the main practical limit.
Ideal For
- Adults with sustained mental workload seeking a non-stimulant fatigue buffer
- People with benign elevated liver enzymes working alongside medical guidance
- Those who find rhodiola too activating but want a similar adaptogen profile
- Endurance athletes exploring adaptogens for perceived exertion
Avoid If
- You take medications metabolised by CYP3A4 — statins, tacrolimus, oral contraceptives, some anticonvulsants
- You have gastro-oesophageal reflux or active peptic ulcer disease
- You have epilepsy, where seizure-threshold effects are unclear
- You are pregnant — schisandra has traditional uterine-stimulant use
- You are breastfeeding
- You have high intracranial pressure
Frequently Asked Questions
How does it compare with rhodiola?
Is the drug interaction risk real?
Why is it called the five-flavour berry?
Does it help the liver in fatty liver disease?
Overview
Schisandra chinensis was formally classified as an adaptogen by Soviet researchers in the 1960s, and much of the human evidence still comes from that Russian tradition — studies of pilots, sailors and factory workers measuring reaction time and error rates under sustained load. The active constituents are dibenzocyclooctadiene lignans, principally schisandrin, schisandrin B and gomisin A, and any product worth buying states a lignan or schisandrin percentage.
Two effects have reasonable support. The first is hepatic: schisandrin B upregulates glutathione S-transferase and heat-shock proteins in hepatocytes, and trials in chronic hepatitis have shown ALT reductions. Bicyclol, a licensed hepatoprotective drug in China, is a synthetic schisandrin analogue, which is a meaningful validation of the mechanism. The second is cognitive-under-stress: combination products such as ADAPT-232, which pairs schisandra with rhodiola and eleuthero, improved attention and reduced fatigue in controlled trials.
The catch is pharmacokinetic. Schisandra is one of the more potent botanical inducers of CYP3A4 and also affects P-glycoprotein, so it can materially lower plasma concentrations of tacrolimus, statins, some anticonvulsants and oral contraceptives. This is not a theoretical caution — it has been documented in human pharmacokinetic studies.
How It Works
- Schisandrin B upregulates hepatic glutathione S-transferase and heat-shock protein 70
- Activates Nrf2 signalling, raising endogenous antioxidant enzyme expression
- Modulates HPA-axis cortisol response and nitric-oxide signalling under stress load
- Improves mitochondrial respiration and ATP output in hepatic and muscle tissue
- Induces CYP3A4 and modulates P-glycoprotein, altering clearance of many drugs
- Reduces circulating ALT and AST in chronic hepatitis trial populations
Quick Facts
- Powerful adaptogen
- Liver protection (Phase I & II)
- Enhances physical endurance
- Improves mental performance
- Skin health benefits
Benefits & Outcomes
Stress Resilience
Schisandra improved attention and mental work capacity under fatigue in controlled adaptogen research, usually as part of the ADAPT-232 combination.
Liver Protection
Schisandra lignans consistently lower ALT and AST across clinical studies, and a synthetic analogue is a licensed hepatoprotective drug in China.
Health Concerns Addressed
No linked health concerns yet.
Supporting Research9 studies
Effects of Adaptogens on the Central Nervous System
Panossian A, Wikman G
Reviews evidence that adaptogens such as Rhodiola rosea, Eleutherococcus senticosus and Schisandra chinensis act on the hypothalamic-pituitary-adrenal axis and stress-activated protein kinase / heat shock protein pathways, producing stimulating and anti-fatigue effects on mental performance under stress in a number of small clinical studies.
Effects of adaptogens on the central nervous system and the molecular mechanisms of stress-protective activity
Panossian A, Wikman G
Adaptogen preparations containing schisandra improved attention and mental work capacity under stress load.
Antioxidant Effects of Schisandra chinensis Fruits and Their Active Constituents
Kopustinskiene DM, Bernatoniene J
Schisandra lignans consistently reduced serum ALT and AST, and the analogue bicyclol is licensed as a hepatoprotective drug.
Effect of Schisandra chinensis Baillon extracts and regular low-intensity exercise on muscle strength and mass in older adults: a randomized, double-blind, placebo-controlled trial
Cho YH, Lee SY, Lee CH +2 more
Fifty-four participants were randomly assigned into 2 groups and, for 12 wk, received either 1 g SCe/d or a placebo.
Efficacy and safety of Omija (Schisandra chinensis) extract mixture on the improvement of hyperglycemia: a randomized, double-blind, placebo-controlled trial
Kim DS, Baek HI, Ha KC +2 more
After the intervention, the OSM group showed significantly decreased levels of FPG, PPG (30, 60 min), PPI (60 min), insulin area under the curve (AUC), fructosamine, and low-density-lipoprotein (LDL) cholesterol compared to the placebo group.
A randomized, double-blind, placebo-controlled trial of Schisandra chinensis for menopausal symptoms
Park JY, Kim KH
The primary endpoint was the mean interval change in KI score from baseline to week 12.
Efficacy of adaptogens in patients with Long COVID-19: a randomized, quadruple-blind, placebo-controlled trial
Karosanidze I, Kiladze U, Kirtadze N +2 more
Chisan decreased the duration of fatigue and pain for one and two days, respectively, in 50% of patients.
Effect of Schisandra chinensis extract supplementation on quadriceps muscle strength and fatigue in adult women: a randomized, double-blind, placebo-controlled trial
Park J, Han S, Park H
The purpose of this study was to evaluate the effect of SC extract supplementation on quadriceps muscle strength (QMS) and lactate at rest in adult women.
Schisandra chinensis fruit modulates the gut microbiota composition in association with metabolic markers in obese women: a randomized, double-blind placebo-controlled study
Song MY, Wang JH, Eom T +1 more
Although the values did not differ significantly between the 2 groups, the SCF group tended to show a greater decrease in waist circumference, fat mass, fasting blood glucose, triglycerides, aspartate aminotransferase, and alanine aminotransferase than the placebo group.
Safety Information
Potential Side Effects
Very safe. May cause mild digestive upset, heartburn, or decreased appetite. Can be mildly stimulating - take earlier in day. Typical dose 500-2000mg dried berries or 100-500mg standardized extract daily. Safe for long-term use. Caution with acid reflux.
Contraindications
Epilepsy, gastroesophageal reflux, peptic ulcer
Drug Interactions
- CYP3A4 substrates
- Warfarin
- Immunosuppressants
Pregnancy & Breastfeeding
Pregnancy: Unsafe
Breastfeeding: Not enough evidence to judge
Dosage Guidelines
Dosage Used in Studies
500-2000 mg
Best Time to Take
Morning
Best Form
Standardized extract (9% schisandrins)
Bioavailability
Contains lignans including schisandrin. Adaptogenic herb. May enhance liver detoxification. CYP450 enzyme effects - caution with medications. Traditional use in Chinese medicine.
Dosing by Goal
| Goal | Dose | Notes |
|---|---|---|
| Liver support | Up to 2000 mg/day in divided doses, as used in hepatic trials | |
| General adaptogen | 500-1000 mg/day of standardised extract, taken in the morning | |
| Timing | Morning or early afternoon — it is mildly stimulating for some users | |
| Cycling | Consider 6-8 weeks on with a 1-2 week break, consistent with adaptogen practice | |
| Duration | Cognitive effects within 1-2 weeks; enzyme changes over 8-12 weeks |
Forms Compared
Standardised berry extract
Look for 2-9% schisandrins or total lignans; the form used in most trials
Dried berry or powder
Traditional and food-like, but lignan content is variable and usually low
ADAPT-232 combination
Schisandra with rhodiola and eleuthero; the best-trialled adaptogen blend
Tincture
Common in Russian practice; dosing by dropper makes standardisation difficult
Bicyclol (prescription)
A synthetic schisandrin analogue licensed in China — a drug, not a supplement
Food & Timing
Morning, with or shortly before food; avoid late-day dosing
Medical Disclaimer
The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.
Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.