Kutaja Anti-diarrhéal (Holarrhena pubescens): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does Kutaja work to kill amoeba and parasites?

Kutaja contains conimine alkaloids, including conimine, conarrhimine, holarrhimine, and kurchicine, which directly kill Entamoeba histolytica. These alkaloids disrupt the parasite's cellular function, making Kutaja one of the most effective Ayurvedic treatments for amoebic dysentery. The herb also has astringent properties that help reduce intestinal inflammation and fluid loss associated with diarrhea. Evidence level: C.

Does Kutaja interact with any medications?

Limited research exists on Kutaja drug interactions. Due to its antidiarrheal effects, it may potentially reduce absorption of oral medications when taken simultaneously. The herb's mild CNS effects at high doses could theoretically interact with sedatives or CNS-active medications. Patients taking prescription medications should consult a healthcare provider before using Kutaja and separate administration times by at least 2 hours. Evidence level: Traditional.

What is the correct Kutaja dosage for treating diarrhea?

The standard adult dosage of Kutaja is 3-6 grams of bark powder or 300mg of standardized extract taken twice daily. For acute diarrhea, treatment typically continues for 5-7 days. For amoebic infections, longer courses may be necessary under practitioner guidance. Start with lower doses to assess tolerance, as the herb can cause constipation. Always use under qualified practitioner supervision. Evidence level: C.

Is Kutaja safe to take during pregnancy and breastfeeding?

Kutaja is contraindicated during pregnancy and should be strictly avoided. The herb's active alkaloids may stimulate uterine contractions and pose risks to fetal development. Safety during breastfeeding has not been established, so nursing mothers should also avoid Kutaja. Women of reproductive age should use reliable contraception while taking this herb. Evidence level: Traditional.

What conditions does Kutaja treat in Ayurvedic medicine?

Kutaja (Holarrhena pubescens) is primarily used in Ayurveda for amoebic dysentery, diarrhea, and intestinal parasites. It is considered the most effective Ayurvedic herb for amoebic infections. Additional traditional uses include managing irritable bowel syndrome (IBS), colitis, and other intestinal inflammatory conditions. The herb's antiprotozoal and antidiarrheal properties make it valuable for gastrointestinal disorders. Evidence level: C.

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

Holarrhena pubescens is a medicinal plant of the Apocynaceae family used in traditional systems like Ayurveda for various ailments, including diabetes and infectious diseases [PMID:32962166, PMID:37228324].

Contexte

Holarrhena pubescens (also known as H. antidysenterica) is a medicinal tree widely distributed across the Indian subcontinent [PMID:32962166, PMID:10624899]. It belongs to the Apocynaceae family [PMID:32962166, PMID:36816055].

Usages traditionnels

The plant is extensively used in Ayurveda and other traditional medicinal systems in Asia and Africa [PMID:32962166]. Specific traditional uses include treating fever and stomach pain in Kenyan coastal communities [PMID:41752510], and it is used by the Bhoxa community in Uttarakhand, India, for the treatment of dysentery and diarrhoea [PMID:24432368].

Composés actifs

Bioactive compounds identified include steroidal alkaloids such as conessine, isoconnessine, conessimine, conimine [PMID:32962166], holanamine [PMID:36417798], pubescine [PMID:41029014], and mokluangins A-C [PMID:26850468]. Other constituents include naringin, naringenin 7-O-beta-D-glucoside, lupeol, and ursolic acid [PMID:17329039].

Mécanisme d'action

In silico studies suggest that steroidal alkaloids from H. pubescens may interfere with the binding of heat stable enterotoxin (STa) to the extracellular domain of guanylyl cyclase c (ECDGC-C), which is a signaling cascade that results in watery diarrhea [PMID:34299422]. Other mechanisms identified include the inhibition of lipase activity and lipid accumulation [PMID:37511810], and the inhibition of alpha-glucosidase enzyme activity [PMID:37228324].

Preuves cliniques

Preuve DDiarrhea (ETEC-induced)

An alkaloid-rich fraction showed significant antibacterial activity against enterotoxigenic Escherichia coli (ETEC) in vitro [PMID:34299422].

Preuve DDiabetes

Methanolic extract of seeds reduced serum blood glucose levels and increased serum insulin levels in rats [PMID:37228324].

Preuve DHyperlipidemia

Methanolic extract of seeds reduced serum levels of cholesterol and triglycerides in rats [PMID:37511810].

Preuve DLeishmaniasis

The isolated alkaloid holanamine showed significant antileishmanial activity against Leishmania donovani by targeting DNA Topoisomerase 1B [PMID:36417798].

Preuve DHelminthiasis (Raillietina spp.)

Ethanolic extract and ethyl acetate fraction of stem bark demonstrated anthelmintic efficacy against Raillietina spp. in domestic fowl [PMID:37708168].

Sécurité et effets indésirables

The plant is reported to be used in Ayurveda and other traditional systems without obvious or apparent adverse effects [PMID:32962166, PMID:37148427].

Interactions médicamenteuses

The seed extract was evaluated in a cytochrome P450 3A4 (CYP3A4) inhibition assay to assess potential for herb-drug interaction [PMID:37228324].

Synthèse des preuves

The current evidence is primarily based on in vitro studies, animal models (rats/mice), and ethnomedicinal reports; there is a lack of human clinical trials (RCTs) in the provided data.

Sources PubMed

1.PMID: 32962166 (2020) — Metabolic Diversity and Therapeutic Potential of Holarrhena pubescens: An Important Ethnomedicinal Plant. · Biomolecules
2.PMID: 36816055 (2023) — The complete chloroplast genome of Holarrhena pubescens and its phylogenetic analysis. · Mitochondrial DNA. Part B, Resources
3.PMID: 37148427 (2023) — MicroRNAs from Holarrhena pubescens stems: Identification by small RNA Sequencing and their Potential Contribution to Human Gene Targets. · Functional & integrative genomics
4.PMID: 37708168 (2023) — Anthelmintic efficacy of Holarrhena pubescens against Raillietina spp. of domestic fowl through ultrastructural, histochemical, biochemical and GLCM analysis. · PloS one
5.PMID: 25386454 (2014) — Evaluation of antioxidative and antidiabetic activity of bark of holarrhena pubescens wall.

Kutaja Anti-diarrhéal

Sources et citations

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