Dried Whole Berries
The crude, traditional form — dried berries boiled to make a tea, used both raw and after processing.[22]
Traditional · Crude Drug
Adaptogen
Biological Overview
Schisandra is a woody, aromatic climbing vine reaching about 8 meters in height, with pink flowers and clusters of red berries. It is cultivated in northeast China, where the fruit is harvested in autumn.
Life CycleWoody climbing vine
HabitatNortheast China
Lignan Diversity~30 distinct lignans
Marker CompoundsSchisandrins, Gomisins
Botanical Classification
Taxonomy & Identification
- Latin Name
- Schisandra chinensis (Turcz.) Baill.
- Synonyms
- Schizandra chinensis, S. sinensis
- Family
- Schisandraceae
- Common Names
- Schisandra, Schizandra
- Chinese Name
- Wu Wei Zi ("five-flavor seed")
- Parts Used
- Seeds, berries
- Habitat
- Cultivated, northeast China
Traditional Chinese Medicine
History & Tradition
Schisandra is one of the tonic plants most widely used in China to stimulate sexual activity. Its Chinese name evokes "five fragrant plants," a reference to the berry's combination of five elemental flavors. The berries were also traditionally used to preserve a youthful appearance.
Modern research has approached Schisandra from many angles — as an adaptogen, a hepatoprotective agent, and more recently as a compound of real interest in clinical pharmacology, where its interaction with drug-metabolizing enzymes has become its own area of study.
⚠ A Real, Documented Drug Interaction
Schisandra extract has been shown in a controlled human study to substantially increase blood levels of the immunosuppressant tacrolimus. This is not a theoretical caution — see Safety & Interactions for the full picture.
The Key Molecules
Schisandrin Lignans — Deep Dive
A family of roughly 30 dibenzocyclooctadiene lignans behind nearly every documented effect of this plant — and its one genuinely important drug interaction.
🧬
A Large, Named Lignan Family
Around 30 distinct dibenzocyclooctadiene lignans have been identified, including schisandrin, deoxyschisandrin, and the gomisins.
🧠
🫀
Heat Shock Protein Induction
Schisandrin B induces glutathione and heat shock protein responses in heart muscle cells via cytochrome P-450-catalyzed reactive oxygen species production.[10]
⚗️
The Same Pathway Behind the Drug Interaction
The lignans' effect on cytochrome P450 enzymes — the same family of liver enzymes behind much of their pharmacology — is also exactly what causes Schisandra's documented interaction with tacrolimus.
⚠ Same Mechanism, Two Different Outcomes
The lignans' liver-enzyme activity cuts both ways.
The same schisandrin and gomisin lignans responsible for Schisandra's hepatoprotective and cardioprotective effects also inhibit the CYP3A liver enzyme — which is exactly the mechanism behind its documented interaction with tacrolimus and other CYP3A4-metabolized drugs. See Safety & Interactions.
Available Forms
Parts Used & Available Forms
The dried fruit is prepared in several documented traditional and modern forms.
Clinical Dosimetry
Dosages
Documented across traditional Chinese medicine references and one modern controlled human trial.
The Pharmacopoeia of the People's Republic of China sets a quality marker requiring at least 0.40% schisandrin content for the dried fruit. Confirm dosing with a healthcare provider, particularly given the documented tacrolimus interaction described in Safety & Interactions.[25]
Phytochemistry
Composition
A lignan-dominant profile, with a remarkably large number of distinct named compounds for a single plant.
Lignans & Triterpenes
Dibenzocyclooctadiene Lignans (~30 Compounds)Schisandrin, deoxyschisandrin, gomisins, and related lignans
Major
TriterpenesGeneral triterpene class
Present
PolysaccharidesIncluding Schisandra chinensis polysaccharide-0-1 (SCP-0-1)
Present
Essential Oil & Vitamins
Alpha-CubebenolSesquiterpenol
Present
Essential OilGeneral essential oil fraction
Present
Vitamin C & Vitamin EPresent in the berry
Present
🛡️
Adaptogenic
Facilitates resistance to stress, with an effect comparable to ginseng — a positioning consistent with broader reviews of the adaptogen concept.[21]
🧠
Tonic & Cognitive Enhancement
Stimulates the nervous system, improves lucidity and reflexes, and increases memory.[1]
🧬
Neuroprotective
Schisandrin B shows anti-neuroinflammatory activity in microglial cell models.[2]
⚡
Rapid-Onset Synergy (With Eleuthero & Rhodiola)
A single dose of a mixture with Eleutherococcus senticosus and Rhodiola rosea increases mental performance and physical work capacity, with onset within 30 minutes lasting 4 to 6 hours, without adverse effects.[3]
🩺
Antimicrobial & Antidiabetic
Improves pancreatic function and stimulates insulin secretion; alpha-cubebenol shows anti-obesity potential by limiting lipid accumulation and preadipocyte differentiation.[4]
⏳
Anti-Aging & Photoaging Protection
Protects against skin photoaging; indicated in research contexts of osteoarthritis, sarcopenia, senescence, and mitochondrial dysfunction; improves physical endurance and cognitive-behavioral function.[5]
😌
Antidepressant
Documented antidepressant activity and reduction of irritability.
🫀
Hepatoprotective
Lignans protect the liver, particularly in hepatitis, by inhibiting lipid peroxidation, and protect against galactosamine-induced hepatotoxicity.[6][7][8]
🫘
Nephroprotective (Cyclosporine-Induced)
Schisandrin B protects against cyclosporine A-induced nephrotoxicity in vitro and in vivo.[9]
🫁
Cardioprotective
Induces heat shock proteins (HSPs) in cardiomyocytes via cytochrome P-450-mediated reactive oxygen species production.[10]
🩸
Sepsis Survival (Alpha-Iso-Cubebenol)
Improves survival in experimental sepsis by triggering protective signaling pathways, improving microbial killing, and maintaining organ function and leukocyte survival.[11]
⚗️
Antioxidant
Stimulates the activity of superoxide dismutase (SOD) and catalase.
🩺
Antihypertensive
Gomisin A shows an antihypertensive effect via preservation of nitric oxide bioavailability.[12][13]
🫁
Pulmonary Anti-Inflammatory
Schisandrin B protects against cigarette-smoke-induced lung inflammation via Nrf2 activation and NF-κB inhibition, reducing TNF-α, IL-1β, and IL-6 in bronchoalveolar lavage fluid.[14][15]
🔬
Anticancer — Polysaccharide
A homogeneous polysaccharide (SCP-0-1) is active against HepG2 hepatocellular carcinoma cells.[16]
🧪
Anticancer — Essential Oil & Cubebenol
Essential oil from the seeds induces apoptosis in human U937 leukemia cells; alpha-iso-cubebenol induces apoptosis in hepatocarcinoma cells.[17][18][19]
🤰
Uterine Stimulant
Stimulates the uterus and increases contractions — a property directly relevant to use during pregnancy.
❤️
Aphrodisiac (Male & Female)
Traditionally used as a sexual stimulant for both sexes, increasing sexual secretions.
Clinical Applications
Clinical Indications
From hepatic protection to a long, varied list of traditional applications.
🫀
Hepatic Conditions
Primary Indication
- Toxic and viral hepatitis.
🛡️
Adaptogenic Use
Energy & Stress
- Asthenia and fatigue.
❤️
Sexual & Reproductive
Traditional Use
- Male and female sexual insufficiency, anaphrodisia, impotence.
🧠
Neuropsychiatric, Respiratory & Skin
Broader Traditional Indications
- Insomnia — an apparently contradictory action for a stimulating tonic.
- Neuroses, memory loss, irritability; Alzheimer's disease, an uncertain, unconfirmed use.
- Cough, asthma; night sweats; thirst-quenching.
- Urticaria, eczema.
Pharmacodynamics
Mode of Action
Four mechanisms drawn from Schisandra's documented properties.
🔥
Nrf2 Activation & NF-κB Inhibition
Schisandrin B activates the Nrf2 antioxidant pathway while inhibiting NF-κB signaling, reducing inflammatory mediators in models of lung inflammation.[15]
🧫
Heat Shock Protein Induction
Cytochrome P-450-catalyzed reactive oxygen species production mediates glutathione and heat shock protein responses, contributing to the cardioprotective effect.[10]
⚗️
Antioxidant Enzyme Stimulation
Stimulates superoxide dismutase (SOD) and catalase activity, contributing to the plant's broader antioxidant profile.
🧬
Cytochrome P450 (CYP3A) Modulation
Schisandra lignans — including schisandrin B and the gomisins — inhibit the CYP3A enzyme. This same mechanism underlies several of the plant's protective effects and its documented interaction with tacrolimus.[20]
Clinical Safety
Safety & Interactions
Generally well tolerated, with one real, well-documented drug interaction worth knowing about.
Reported Safety Profile
- No documented side effects have been reported for Schisandra at typical use levels.
- Pregnancy consideration: Schisandra has a documented uterine-stimulant effect, directly relevant to use during pregnancy.
A Documented Drug Interaction
- Tacrolimus: a controlled human study found Schisandra extract increased tacrolimus AUC by roughly 164–187%, through inhibition of CYP3A and P-glycoprotein. [20]
- Broader CYP3A4 caution: the same mechanism means other medications metabolized by CYP3A4 — including some immunosuppressants and chemotherapy agents — could theoretically be affected.
- Monitoring: anyone taking tacrolimus, other immunosuppressants, or CYP3A4-metabolized medication should not start Schisandra without medical supervision and blood-level monitoring.
Clinical Disclaimer: This monograph is for educational and professional reference only. It does not constitute medical advice, diagnosis, or treatment guidance. Always consult a qualified healthcare provider before initiating any phytotherapeutic regimen, particularly if you are pregnant, breastfeeding, or taking immunosuppressant or other CYP3A4-metabolized medication.
Common Questions
Frequently Asked Questions
What is Schisandra used for?
Schisandra is used traditionally as an adaptogen for fatigue and stress resistance, for toxic and viral hepatitis, for male and female sexual insufficiency, for memory loss and irritability, for cough and asthma, for night sweats, and for skin conditions like urticaria and eczema. It is also studied for insomnia, despite this seeming contradictory for a stimulating tonic.
Does Schisandra interact with medications?
Yes, significantly. A controlled human pharmacokinetic study found that Schisandra extract increased the blood concentration of tacrolimus, an immunosuppressant drug, by roughly 164 to 187 percent through inhibition of the CYP3A enzyme and P-glycoprotein. This is a clinically documented interaction, not a theoretical one, and is especially relevant for anyone taking immunosuppressant or other CYP3A4-metabolized medications.
Are there really no side effects for Schisandra?
Schisandra is generally well tolerated and does not have a long list of documented side effects. However, it does have a real, clinically confirmed interaction with tacrolimus, an immunosuppressant drug, where it significantly raises blood levels of the medication. This is presented clearly in this monograph because it matters for anyone on that or similar medication, even though Schisandra itself is otherwise considered low-risk.
What is Wu Wei Zi?
Wu Wei Zi is the Chinese name for Schisandra chinensis, translating to "five-flavor seed" or "five-flavor berry," a reference to the fruit's combination of sour, sweet, salty, bitter, and pungent tastes.
Is Schisandra safe during pregnancy?
This deserves caution. Schisandra has a documented uterine-stimulant property and a traditional use for inducing labor. Pregnant women should avoid large amounts and discuss any use with a healthcare provider or midwife.
Is Schisandra similar to ginseng?
It is grouped in the same broad category of adaptogens, with an adaptogenic effect described as comparable to ginseng. One human study also found a combination of Schisandra, Rhodiola rosea, and Eleutherococcus senticosus produced a stimulant effect within 30 minutes that lasted 4 to 6 hours, without adverse effects.
Can Schisandra help the liver?
Yes, this is one of its best-documented traditional and research-supported uses. Schisandra lignans are hepatoprotective, particularly in hepatitis, and have been shown to inhibit lipid peroxidation and protect against chemically induced liver injury in research models.
Primary Literature
Bibliography
↑
1.
Hu D, Li C, Han N, Miao L, Wang D, Liu Z, Wang H, Yin J. Deoxyschizandrin Isolated from the Fruits of Schisandra chinensis Ameliorates Aβ1-42-induced Memory Impairment in Mice. Planta Med. 2012 Jul 6.
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↑
2.
Zeng KW, Zhang T, Fu H, Liu GX, Wang XM. Schisandrin B exerts anti-neuroinflammatory activity by inhibiting the Toll-like receptor 4-dependent MyD88/IKK/NF-κB signaling pathway in lipopolysaccharide-induced microglia. Eur J Pharmacol. 2012 Jun 12.
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Lee SJ, Kim JE, Choi YJ, Gong JE, Jin YJ, Lee DW, Choi YW, Hwang DY. Anti-Obesity Effect of α-Cubebenol Isolated from Schisandra chinensis in 3T3-L1 Adipocytes. Biomolecules. 2021 Nov 8;11(11):1650.
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7.
Chiu HF, Chen TY, Tzeng YT, Wang CK. Improvement of Liver Function in Humans Using a Mixture of Schisandra Fruit Extract and Sesamin. Phytother Res. 2012 May 21.
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Kang JW, Kim SJ, Kim HY, Cho SH, Kim KN, Lee SG, Lee SM. Protective Effects of HV-P411 Complex Against D-Galactosamine-Induced Hepatotoxicity in Rats. Am J Chin Med. 2012;40(3):467-480.
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Zhu S, Wang Y, Chen M, Jin J, Qiu Y, Huang M, Huang Z. Protective Effect of Schisandrin B Against Cyclosporine A-Induced Nephrotoxicity In Vitro and In Vivo. Am J Chin Med. 2012;40(3):551-566.
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10.
Chen N, Chiu PY, Leung HY, Ko KM. Cytochrome P-450-catalyzed reactive oxygen species production mediates the (-)schisandrin B-induced glutathione and heat shock responses in H9c2 cardiomyocytes. Indian J Pharmacol. 2012 Mar;44(2):204-209.
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↑
11.
Lee SK, Kim SD, Kook M, Lee HY, Park JS, Park YH, Kang JS, Jung WJ, Choi YW, Bae YS. Therapeutic effects of α-iso-cubebenol, a natural compound isolated from the Schisandra chinensis fruit, against sepsis. Biochem Biophys Res Commun. 2012 Oct 26;427(3):547-552.
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↑
12.
Alexander JS, Wang Y. Therapeutic potential of Schisandra chinensis extracts for treatment of hypertension. Hypertens Res. 2012 Jul 5.
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↑
13.
Park JY, Yun JW, Choi YW, Bae JU, Seo KW, Lee SJ, Park SY, Hong KW, Kim CD. Antihypertensive effect of gomisin A from Schisandra chinensis on angiotensin II-induced hypertension via preservation of nitric oxide bioavailability. Hypertens Res. 2012 Apr 26.
PubMed PMID:22534517 →
↑
14.
Bae H, Kim R, Kim Y, Lee E, Jin Kim H, Pyo Jang Y, Jung SK, Kim J. Effects of Schisandra chinensis Baillon (Schizandraceae) on lipopolysaccharide induced lung inflammation in mice. J Ethnopharmacol. 2012 Jun 26;142(1):41-47.
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15.
Jia R, Zhang H, Yang Z, Zhao H, Liu F, Wang H, Miao M, Wang Q, Liu Y. Protective effects of Schisandrin B on cigarette smoke-induced airway injury in mice through Nrf2 pathway. Int Immunopharmacol. 2017 Dec;53:11-16.
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↑
16.
Chen Y, Shi S, Wang H, Li N, Su J, Chou G, Wang S. A Homogeneous Polysaccharide from Fructus Schisandra chinensis (Turz.) Baill Induces Mitochondrial Apoptosis through the Hsp90/AKT Signalling Pathway in HepG2 Cells. Int J Mol Sci. 2016 Jun 28;17(7):1015.
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↑
17.
Choi Y. Apoptotic Cell Death of Human Leukemia U937 Cells by Essential Oil purified from Schisandrae Semen. Journal of Life Science. 2015;25:249-255.
↑
18.
Yu GJ, Choi IW, Kim GY, Hwang HJ, Kim BW, Kim CM, Kim WJ, Yoo YH, Choi YH. Induction of reactive oxygen species-mediated apoptosis by purified Schisandrae semen essential oil in human leukemia U937 cells through activation of the caspase cascades and nuclear relocation of mitochondrial apoptogenic factors. Nutr Res. 2015 Oct;35(10):910-920.
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19.
Kim JE, Kim SG, Goo JS, Park DJ, Lee YJ, Hwang IS, Lee HR, Choi SI, Lee YJ, Oh CH, Choi YW, Hwang DY. The α-iso-cubebenol compound isolated from Schisandra chinensis induces p53-independent pathway-mediated apoptosis in hepatocellular carcinoma cells. Oncol Rep. 2012 Jun 19.
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↑
20.
Xin HW, Wu XC, Li Q, Yu AR, Wang B, Zheng QC, Wang X, Jiang WL, Xiong L. Effects of Schisandra sphenanthera extract on the pharmacokinetics of tacrolimus in healthy volunteers. Br J Clin Pharmacol. 2007 Oct;64(4):469-475.
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22.
Li Shi Zhen (Ming Dynasty). Bencao Gangmu (Compendium of Materia Medica) — classical traditional Chinese medicine dosing for Schisandra (Wu Wei Zi): decoction 1.5–6 g, powder 0.5–2 g, as compiled in modern Chinese herbal medicine references.
↑
23.
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Cho YH, Lee SY, Lee CH, Park JH, So YS. 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. Am J Clin Nutr. 2021 Jun 1;113(6):1440-1446.
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25.
Zhang F, Zhai J, Weng N, Gao J, Yin J, Chen W. A Comprehensive Review of the Main Lignan Components of Schisandra chinensis (North Wu Wei Zi) and Schisandra sphenanthera (South Wu Wei Zi) and the Lignan-Induced Drug-Drug Interactions Based on the Inhibition of Cytochrome P450 and P-Glycoprotein Activities. Front Pharmacol. 2022 Mar 11;13:816036.
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