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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your healthcare provider before using herbs, especially if you are pregnant, nursing, taking medications, or have a medical condition.
How does Poncirus trifoliata work to improve digestion?
Poncirus trifoliata contains bioactive compounds including naringenin, hesperidin, synephrine, and limonoids that support digestive function. Synephrine acts as an adrenergic agonist that may stimulate gastrointestinal motility and promote gastric emptying. The flavonoids exhibit anti-inflammatory and antioxidant properties that may protect the digestive lining. In Traditional Chinese Medicine, this herb is understood to move stagnant Qi and resolve accumulation in the digestive tract, relieving bloating and promoting normal digestive flow. Evidence Level: C.
Does Poncirus trifoliata interact with any medications?
Poncirus trifoliata may interact with blood pressure medications due to its hypotensive effects, potentially causing additive blood pressure lowering. The synephrine content could theoretically interact with MAO inhibitors, stimulants, and certain cardiovascular drugs. Flavonoids like naringenin may affect cytochrome P450 enzymes, potentially altering metabolism of pharmaceuticals including some anticoagulants. Patients taking antihypertensives, heart medications, or blood thinners should consult a healthcare provider before using this herb. Evidence Level: C.
What is the recommended dosage for Poncirus trifoliata?
The typical adult dosage for Poncirus trifoliata is 3-10 grams of dried immature fruit, prepared as a tea or decoction, taken twice daily. In Traditional Chinese Medicine practice, Zhi Shi is rarely used alone and is typically combined with other herbs in formulations tailored to individual patterns. Dosage may vary based on the specific preparation, the patient's constitution, and the condition being addressed. Consult a qualified practitioner for personalized dosing guidance. Evidence Level: Traditional.
Is Poncirus trifoliata safe to take during pregnancy?
Poncirus trifoliata is contraindicated during pregnancy and should be avoided. The herb contains synephrine, a stimulant compound that may affect uterine tone and blood pressure. Traditional Chinese Medicine classifies Zhi Shi as unsafe for pregnant women due to its strong Qi-moving properties, which could potentially stimulate uterine contractions. Women who are pregnant, nursing, or attempting to conceive should not use this herb. Evidence Level: Traditional.
What are the side effects of Poncirus trifoliata?
Common side effects of Poncirus trifoliata include gastrointestinal cramping and abdominal discomfort, particularly at higher doses. Due to its hypotensive properties, the herb may lower blood pressure and cause dizziness or lightheadedness in susceptible individuals. It is contraindicated in cases of spleen deficiency without stagnation, as its strong moving properties may exacerbate weakness and digestive impairment. Those with existing hypotension should avoid this herb. Evidence Level: Traditional.
What is Poncirus trifoliata used for in traditional medicine?
Poncirus trifoliata, known as Zhi Shi or Zhi Ke in Traditional Chinese Medicine, is primarily used to address digestive stagnation, constipation, chest tightness, and phlegm accumulation. The immature fruit promotes digestive motility, relieves bloating, and alleviates symptoms of poor digestion. It is considered effective for moving stagnant Qi in the gastrointestinal tract and is commonly included in classical formulations for digestive complaints, food stagnation, and chest congestion. Evidence Level: C.
PubMed-compiled information sheet
This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.
Compiled from 30 PubMed articles · model: gemma4:31b
Summary
Poncirus trifoliata, also known as trifoliate orange, is a medicinal plant and common citrus rootstock known for its bioactive compounds and tolerance to cold and disease [PMID:33366973, PMID:32985030].
Background
Poncirus trifoliata (L.) Raf. is a deciduous relative of the evergreen Citrus genus and a member of the Rutaceae family [PMID:29250842, PMID:32985030]. It is frequently utilized as a rootstock in citrus production due to its cold hardiness and resistance to diseases such as citrus greening (Huanglongbing) [PMID:32985030, PMID:39624240].
Traditional uses
Ponciri Fructus (dried immature fruits) is used in traditional Korean, Chinese, and Kampo medicines to treat allergic reactions, inflammation, edema, digestive complications, respiratory problems, spleen-related problems, liver complications, neuronal pain, hyperlipidemia, rheumatoid arthritis, cardiovascular problems, hernia, sinusitis, and insomnia [PMID:36615447].
Active compounds
The plant contains flavonoids (including naringin, poncirin, isosakuranetin, and naringenin), terpenoids, and polyphenols [PMID:36615447, PMID:40492037]. Seed extracts contain crude polysaccharides (TSCP) composed of arabinose, galactose, galacturonic acid, glucuronic acid, glucose, rhamnose, and mannose [PMID:37842249]. The peel contains volatile components such as limonene, myrcene, trans-D-ocimene, and indole [PMID:30725582].
Mechanism of action
Naringin may exert anti-tumor effects by blocking the tumor cell cycle, inhibiting proliferation, inducing apoptosis, inhibiting invasion and metastasis, inducing autophagy, and reversing drug resistance [PMID:37663256]. Immature fruit extracts have been shown to induce mitochondrial apoptosis in melanoma cells [PMID:35993632]. Seed extracts may act as immune modulators through anti-complementary activity [PMID:24471075, PMID:37842249].
Clinical evidence
Evidence DCancer (Melanoma/Prostate)
Immature fruit extracts induce mitochondrial apoptosis in B16 melanoma cells [PMID:35993632]; seed extracts reduce viability and induce cell cycle arrest in LNCaP and PC3 prostate cancer cells [PMID:38003541].
Evidence DInflammation
Naringinase-treated ethanol extracts of the fruit demonstrate anti-inflammatory properties in Raw 264.7 cells by decreasing ROS, NO, PGE2, TNF-α, and IL-1β [PMID:40492037].
Evidence CDigestive Dysfunction
Extracts of dried immature fruit (Poncirus fructus) are traditionally used to ameliorate symptoms of digestive dysfunction [PMID:29250842].
Evidence summary
The current evidence is primarily based on in vitro cell studies (melanoma, prostate cancer, and macrophage cells) and traditional use reviews; there is a lack of human clinical trial data to verify efficacy and safety.
PubMed sources
1.PMID: 24471075 (2012) — Bioactivity of Trifoliate Orange (Poncirus trifoliate) Seed Extracts. · Preventive nutrition and food science
2.PMID: 36615447 (2022) — Bioactive Chemical Constituents and Pharmacological Activities of Ponciri Fructus. · Molecules (Basel, Switzerland)
3.PMID: 37842249 (2023) — The Antioxidant and Anti-Complementary Activities of Crude Polysaccharides from Trifoliate Orange (Poncirus trifoliate) Seeds. · Preventive nutrition and food science
4.PMID: 37663256 (2023) — Research progress on the anti-tumor effect of Naringin. · Frontiers in pharmacology
5.PMID: 29250842 (2018) — Phytotherapeutic effects of the fruits of Poncirus trifoliata (L.) Raf. on cancer, inflammation, and digestive dysfunction. · Phytotherapy research : PTR
Government sources
No direct government monograph is available for this herb. The content below is AI-generated and has not been verified against an authoritative government source. Use the search links to check official sources before relying on this information.
6.PMID: 32985030 (2020) — A chromosome-scale reference genome of trifoliate orange (Poncirus trifoliata) provides insights into disease resistance, cold tolerance and genome evolution in Citrus. · The Plant journal : for cell and molecular biology
7.PMID: 39624240 (2024) — Full-length single-molecule sequencing uncovers novel insight into the global landscape of the cold stress response in trifoliate orange (Citrus trifoliata). · Frontiers in plant science
9.PMID: 35993632 (2022) — In vitro mitochondrial apoptosis of melanoma cells via immature Poncirus trifoliata fruit extract. · European review for medical and pharmacological sciences
10.PMID: 33366973 (2020) — Chloroplast genome and phylogenetic analyses of Poncirus trifoliata (Rutaceae). · Mitochondrial DNA. Part B, Resources
11.PMID: 38003541 (2023) — Poncirus trifoliata (L.) Raf. Seed Extract Induces Cell Cycle Arrest and Apoptosis in the Androgen Receptor Positive LNCaP Prostate Cancer Cells. · International journal of molecular sciences
12.PMID: 40492037 (2025) — Anti-inflammatory effects of naringinase treated ethanol extracts of Poncirus trifoliata fruit. · Food science and biotechnology