Schisandrin is a bioactive lignan found in Schisandra chinensis. It is commonly used in supplements for antioxidant, adaptogenic, and liver-support properties.

What are the main benefits of Schisandrin?

Schisandrin is best known for supporting liver health and antioxidant defenses. It may also help with fatigue and stress resilience in some people.

What is a typical Schisandrin dosage?

Common supplemental amounts are in the low milligram range; a typical range is about 5–15 mg per day. Product potency varies, so follow the label and consider professional guidance.

Is Schisandrin safe, and who should avoid it?

Schisandrin is generally well tolerated at typical supplemental doses, but safety depends on individual factors. People who are pregnant or breastfeeding, have liver disease, or take prescription medications should consult a clinician before use.

Does Schisandrin interact with medications?

It may interact with drugs processed by liver enzymes, potentially changing medication levels. Check with a pharmacist or clinician if you use anticoagulants, immunosuppressants, or other long-term medications.

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Schisandrin

Moderate study situation·7/10

A higher score indicates better study conditions, but not necessarily effectiveness.

Bioactive lignan from Schisandra chinensis with adaptogenic, liver-protective, and antioxidant effects.

Anti-inflammatory Cognitive Enhancement Stress Relief Antioxidant Liver Health

dose range

5–15 mg

Once or twice daily

Consumption

Take with a meal, preferable with dietary fat to enhance absorption.

Fat-soluble: take with fat.

Best time

May be best taken in the morning or before periods of physical or cognitive demand.

Description

Schisandrin is a prominent lignan compound extracted from Schisandra chinensis, widely used in traditional medicine and supplements for its potential hepatoprotective, adaptogenic, and antioxidant benefits. Research supports schisandrin's role in supporting liver health, combating oxidative stress, and aiding in fatigue reduction.

benefits

Main effects with level of evidence

Moderate

Note on evidence

Animal and preliminary clinical studies show promising effects for liver protection and fatigue reduction, but larger human studies are still needed.

Supports liver health

Moderate

Schisandrin has demonstrated hepatoprotective effects by reducing oxidative liver injury and inflammation, potentially aiding in the prevention and management of liver toxicity and disease.

Particularly relevant for: Individuals with elevated liver enzymes · People interested in liver support · Supplement users

S1 · PubMed: Hepatoprotective effects of schisandrin S2 · WebMD: Schisandra overview S4 · Examine.com: Schisandra chinensis S6 · Phytotherapy Research: Schisandrin antioxidant effects

Provides antioxidant support

Moderate

Schisandrin acts as a potent antioxidant, increasing endogenous antioxidant enzymes and reducing free radical damage in cells.

Particularly relevant for: General supplement users · Individuals exposed to oxidative stress · Aging population

S2 · WebMD: Schisandra overview S4 · Examine.com: Schisandra chinensis S6 · Phytotherapy Research: Schisandrin antioxidant effects

Reduces fatigue and may enhance cognitive function

Limited

Some studies suggest schisandrin can help reduce fatigue markers and improve cognitive performance, likely due to adaptogenic influences on stress and energy metabolism.

Particularly relevant for: People experiencing fatigue · Individuals under stress · Supplement users

S3 · PubMed: Schisandrin and anti-fatigue/cognitive effects S4 · Examine.com: Schisandra chinensis

Safety & Information

Important safety information & known risks

For educational purposes only • not medical advice

Appears safe for short-term use at supplemental doses, with most adverse effects being mild and reversible.

warning notices

May cause mild gastrointestinal discomfort or allergic reaction in some individuals.
Should not be used during pregnancy or breastfeeding due to lack of safety data.
Possible interaction with other compounds metabolized in the liver—monitor for drug interactions.
Avoid use during pregnancy or breastfeeding due to limited safety data.
Use caution and consult a healthcare provider when taking medications metabolized by the liver, as schisandrin may alter their effects.
Do not use if you have known allergies to Schisandra species.
Monitor liver function when using schisandrin long-term or with other hepatically metabolized drugs.

Known interactions with medications

CYP450-metabolized drugs

Contraindications / special precautions

Pregnancy
Breastfeeding
Known allergy to Schisandra species

interactions

Important interactions between active ingredient ↔ supplement / medication / food

Schisandrin may interact with drugs or supplements that utilize cytochrome P450 enzymes for liver metabolism and may affect the absorption of other fat-soluble compounds.

May alter metabolism of CYP450-dependent medications.

drug · CYP450-metabolized drugs

MonitorModerate

Why

Schisandrin can induce or inhibit certain hepatic enzymes, altering blood levels of drugs metabolized via these pathways.

recommendation

Monitor for altered drug effects and consult a healthcare provider before combining.

S2 · WebMD: Schisandra overview S4 · Examine.com: Schisandra chinensis S7 · Drugs.com: Schisandra

mechanisms of action

Brief explanations of how it works

Hepatoprotective and antioxidant activity

Schisandrin boosts levels of antioxidant enzymes (e.g., superoxide dismutase), reduces oxidative stress, and limits inflammatory responses in liver tissues.

S1 · PubMed: Hepatoprotective effects of schisandrin S6 · Phytotherapy Research: Schisandrin antioxidant effects

Adaptogenic modulation of fatigue and stress response

Schisandrin may help regulate energy metabolism and neurotransmitter systems involved in physical and mental fatigue, contributing to improved stress responses.

S3 · PubMed: Schisandrin and anti-fatigue/cognitive effects S4 · Examine.com: Schisandra chinensis

Sources & References

Primary literature and reviews on which these statements are based

7 sources

PubMed: Hepatoprotective effects of schisandrin

WebMD: Schisandra overview

PubMed: Schisandrin and anti-fatigue/cognitive effects

Examine.com: Schisandra chinensis

Comprehensive monograph including schisandrin details.

NIH ODS: Adaptogens overview

Includes context for adaptogenic herbal supplements.

Phytotherapy Research: Schisandrin antioxidant effects