Daphne Genkwa (Daphne genkwa): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does Daphne genkwa work as a diuretic and purgative?

Daphne genkwa contains diterpenoid compounds, particularly yuanhuacin and genkwadaphnin, which stimulate intestinal motility and promote fluid excretion. These compounds act as strong purgatives by irritating the gastrointestinal mucosa, triggering increased peristalsis and water secretion into the intestinal lumen. The herb's diuretic effect occurs through enhanced renal fluid excretion. Evidence Level: C. The mechanism is similar to other stimulant laxatives but significantly more potent, requiring careful dosing to avoid toxicity.

Is Daphne genkwa safe to take during pregnancy?

Daphne genkwa is absolutely contraindicated during pregnancy. The herb contains compounds that stimulate strong uterine contractions and have documented abortifacient effects. Historical use in traditional Chinese medicine included this herb specifically for inducing abortion. The diterpenoid compounds yuanhuacin and genkwadaphnin can cause fetal harm and pregnancy termination. Evidence Level: C. Women who are pregnant, attempting to conceive, or breastfeeding must avoid this herb entirely due to these serious risks.

What is the recommended dosage for Daphne genkwa?

The traditional adult dosage for Daphne genkwa is 1.5 to 3 grams of prepared flower buds as a decoction, taken under strict professional supervision. The herb must be properly processed, typically vinegar-fried, to reduce toxicity before use. Raw, unprocessed Daphne genkwa is significantly more toxic and should never be consumed internally. Evidence Level: C. Dosage should never exceed recommended amounts, and treatment duration should be limited. Self-medication is strongly discouraged due to the narrow therapeutic window.

Does Daphne genkwa interact with any medications?

Daphne genkwa has significant potential for drug interactions due to its hepatotoxic properties and strong purgative effects. It should not be combined with other hepatotoxic medications, conventional diuretics, laxatives, or cardiac drugs. The herb may potentiate potassium depletion when used with diuretics, increasing arrhythmia risk. Its effects on intestinal transit may alter absorption of orally administered medications. Evidence Level: C. Patients taking prescription medications should avoid this herb unless under strict medical supervision.

What are the side effects and toxicity risks of Daphne genkwa?

Daphne genkwa carries significant toxicity risks including severe gastrointestinal irritation, abdominal pain, and bloody diarrhea. Hepatotoxicity is a documented concern with potential for elevated liver enzymes and liver injury. The herb can cause spontaneous abortion due to uterine stimulation. Other adverse effects include dizziness, headache, and in severe cases, respiratory failure or cardiac arrhythmias from electrolyte imbalances. Evidence Level: C. The therapeutic window is narrow, and overdose can be life-threatening. Proper processing reduces but does not eliminate toxicity risks.

Fiche d'information compilée à partir de PubMed

Cette fiche a été compilée à partir de résumés PubMed (NIH) avec l'assistance d'une IA. Chaque affirmation factuelle est citée par un article PubMed réel (voir la liste des sources). Elle n'a pas encore été révisée par un humain — confirmez auprès d'un professionnel de santé avant utilisation.

Compilé à partir de 30 articles PubMed · modèle : gemma4:31b

Résumé

Daphne genkwa is a traditional medicinal plant distributed in China, Korea, and Vietnam, known for its broad spectrum of pharmacological effects including anti-inflammatory and anticancer activities [PMID:38906384, PMID:35204693].

Contexte

Daphne genkwa is a deciduous shrub found in East Asia [PMID:42329339]. In traditional Chinese medicine, its dried flower buds are referred to as "Yuanhua" or "Genkwa flos" [PMID:38906384, PMID:35870686].

Usages traditionnels

Traditionally used to promote urination, eliminate phlegm, alleviate cough, eliminate parasites, and treat scabies [PMID:38906384]. It is also used for inflammation-related symptoms, joint pain [PMID:24685587], scabies baldness, carbuncles, and chilblains [PMID:37241730]. Vinegar-processed Daphne genkwa is used internally for asthma, constipation, and chest or abdominal water accumulation [PMID:37241730].

Composés actifs

The plant contains daphnane-type diterpenes (including yuanhuacin and its analogues: yuanhuadin, yuanhuafin, yuanhuagin, yuanhuahin, yuanhuajin, yuanhualin, yuanhuamin, yuanhuapin, and yuanhuatin) [PMID:35204693], lathyrane-type diterpenoids (daphngenoids A-C) [PMID:41722672], tigliane-type diterpenoids [PMID:36382781], meroterpenoids [PMID:37659144], and sesquiterpenoids (daphneaines A-G) [PMID:32213358, PMID:31927316]. Flavonoids include genkwanin, hydroxygenkwanin, luteolin, and apigenin [PMID:32199350, PMID:24685587].

Mécanisme d'action

Anti-tumor effects of yuanhuacin are linked to Protein kinase C [PMID:35204693]. Meroterpenoids may inhibit the PI3K/Akt/mTOR signaling pathway [PMID:37659144]. Yuanhuacine regulates the JAK1/STAT3 pathway to modulate IL-6 [PMID:40692765]. Hydroxygenkwanin exerts osteoprotective effects via the LRG1-PJA1-PML axis [PMID:42302644]. Flower extracts may promote neuroprotective effects in microglia [PMID:36240609].

Preuves cliniques

Preuve BAnal Fistula (Wound Healing)

External application of D. genkwa root extractive in 60 patients post-surgery was studied to evaluate wound healing times and granulation tissues [PMID:28396516]

Preuve DCancer (Lung, Breast, Colorectal, HepG-2)

Yuanhuacin and other daphnane diterpenes showed potent in vitro and in vivo activity against lung and breast cancers [PMID:35204693] and colorectal cancer [PMID:40023971].

Preuve DRheumatoid Arthritis

Flavonoid aglycones significantly decreased paw edema and arthritis scores in rat models [PMID:24685587]. Genkwanin was identified as the most effective anti-RA component in vitro [PMID:32199350].

Preuve DHerpes Simplex Virus (HSV-1)

Vinegar-processed flos (vp-genkwa) reduced viral replication and mortality in a genital infection model by activating NK cells [PMID:25922598].

Preuve DAcute Kidney Injury (AKI)

Yuanhuacine effectively prevented tubular damage and regulated IL-6 in a mouse model of AKI [PMID:40692765].

Sécurité et effets indésirables

Daphne genkwa is described as a traditional toxic Chinese medicine [PMID:22389143]. Vinegar processing is commonly used to reduce the toxicity of the crude herb [PMID:37241730].

Interactions médicamenteuses

Total flavonoid extracts (TFDG) and monomers (apigenin, luteolin, hydroxygenkwanin, genkwanin) inhibit CYP2C8 activity in vitro; apigenin and TFDG showed potential for in vivo inhibition [PMID:35621148].

Synthèse des preuves

The evidence consists primarily of in vitro studies, animal models (rats, mice), and one small-scale clinical observation for wound healing. There are no large-scale human RCTs or meta-analyses provided.

Sources PubMed

1.PMID: 38906384 (2024) — Daphne genkwa: Ethnopharmacology, phytochemistry and pharmacology of an important traditional Chinese medicine. · Fitoterapia
2.PMID: 36240609 (2023) — Daphne genkwa flower extract promotes the neuroprotective effects of microglia. · Phytomedicine : international journal of phytotherapy and phytopharmacology
3.PMID: 35204693 (2022) — Yuanhuacin and Related Anti-Inflammatory and Anticancer Daphnane Diterpenes from Genkwa Flos-An Overview. · Biomolecules
4.PMID: 35870686 (2022) — Uncovering the efficacy and mechanisms of Genkwa flos and bioactive ingredient genkwanin against L. monocytogenes infection. · Journal of ethnopharmacology
5.PMID: 22389143 (2012) — Anticancer drugs from traditional toxic Chinese medicines. · Phytotherapy research : PTR

Daphne Genkwa

Sources et citations

Calculer une dose sûre de Daphne Genkwa