Fagara zanthoxyloides (Fagara zanthoxyloides): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does Fagara zanthoxyloides work for sickle cell anemia?

Fagara zanthoxyloides contains bioactive alkaloids, particularly fagaronine and nitidine, which have demonstrated antisickling properties in laboratory studies. These compounds appear to inhibit the polymerization of hemoglobin S, the abnormal hemoglobin responsible for sickle cell disease. The herb also contains tannins with antimicrobial properties. Evidence level C indicates these findings come primarily from in vitro and animal studies, with limited human clinical data available to confirm therapeutic effects.

Does Fagara zanthoxyloides interact with any medications?

Limited research exists on drug interactions for Fagara zanthoxyloides. Due to its alkaloid content (fagaronine, nitidine, chelerythrine), there is potential for interactions with medications metabolized by the liver. Those taking anticoagulants or anti-platelet drugs should exercise caution, as some compounds may affect blood clotting. Individuals on immunosuppressants or medications for blood disorders should consult a healthcare provider before use. Evidence level C.

What is the recommended dosage for Fagara zanthoxyloides?

Traditional use of Fagara zanthoxyloides involves using the bark as a chewing stick for oral hygiene. For internal use as a tea, traditional practitioners typically recommend 2-3 grams of dried bark per day. There is no established standardized clinical dosage due to limited human trials. Individuals should follow guidance from qualified healthcare practitioners familiar with African traditional medicine, particularly for sickle cell management. Evidence level C.

Is Fagara zanthoxyloides safe during pregnancy?

Fagara zanthoxyloides is considered unsafe during pregnancy and should be avoided. The alkaloids fagaronine and nitidine have demonstrated potential toxic effects and may pose risks to fetal development. Traditional use contraindicates this herb for pregnant women. Women who are breastfeeding should also avoid this herb due to insufficient safety data. Those with blood disorders should only use this herb under qualified medical supervision. Evidence level C.

What are the side effects of Fagara zanthoxyloides?

Fagara zanthoxyloides is generally well-tolerated when used traditionally as a chewing stick for oral hygiene. Internal use may cause mild gastrointestinal effects including nausea, stomach discomfort, or diarrhea in some individuals. The bark's alkaloid content may cause more serious effects at high doses. Those with pre-existing liver conditions or blood disorders should use caution. Long-term safety data remains limited. Evidence level C based on traditional use and preliminary studies.

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

Fagara zanthoxyloides is a West African medicinal tree used traditionally to treat malaria, diabetes, and sickle cell disease [PMID:35381308, PMID:19110407, PMID:31365939].

Contexte

Fagara zanthoxyloides (synonym Zanthoxylum zanthoxyloides) is a tree native to West Africa [PMID:31365939]. Its roots are commonly used as chewing sticks for tooth cleaning in West Africa [PMID:15616304].

Usages traditionnels

Traditional uses include the treatment of malaria [PMID:35381308, PMID:31365939], diabetes [PMID:35381308], sickle cell disease crisis [PMID:19110407], wound dressing, and as a pain reliever [PMID:23567034]. It is also used for diarrhea, cough, and fever [PMID:25750297].

Composés actifs

Identified compounds include isomeric divanilloylquinic acids (burkinabins A, B, and C) [PMID:19110407, PMID:15110696], as well as bis-dihydrochelerythrinyl ether, buesgenine, chelerythrine, γ-fagarine, skimmianine, and pellitorine [PMID:31365939]. Other isolated components include fagaronine [PMID:4652672] and various antifungal and antioxidant compounds [PMID:12709897].

Mécanisme d'action

In malaria, root extracts may be cytotoxic to P. falciparum trophozoites [PMID:15616304]. In prostate cancer cell lines, extracts induce apoptosis and decrease cell proliferation and viability [PMID:25750297].

Preuves cliniques

Preuve DDiabetes

Ethyl acetate fraction of root-bark showed antidiabetic properties in alloxan-induced diabetic Wistar rats [PMID:35381308]

Preuve DMalaria

Methanol extracts of leaves produced antimalarial effects in P. berghei-infected mice [PMID:31500475]; root and stem bark extracts showed in vitro activity against chloroquine-sensitive and resistant P. falciparum [PMID:31365939, PMID:15616304]

Preuve DSickle Cell Disease

Divanilloylquinic acids (burkinabins A-C) demonstrated antisickling properties [PMID:19110407]; however, one study using an aqueous root extract failed to confirm an antisickling effect in vitro [PMID:1202311]

Preuve DProstate Cancer

Extracts exhibited dose-dependent inhibition of growth and induction of apoptosis across four prostate cancer cell lines (PC3, DU-145, LNCaP, and CWR-22) [PMID:25750297]

Preuve DPeriodontal Disease

Aqueous extracts showed antibacterial activity significant to periodontal disease [PMID:10594937]

Sécurité et effets indésirables

In mice, the LD50 of the methanolic root-bark extract was 5.0 g/kg body weight; signs of cerebral irritation, liver congestion, and focal necrosis of renal tubules were observed at lethal doses [PMID:14676717].

Synthèse des preuves

The evidence is primarily based on in vitro studies and animal models (Level D), with no human clinical trials provided in the abstracts.

Sources PubMed

1.PMID: 35381308 (2022) — Ethyl acetate fraction of Fagara zanthoxyloides root-bark possess antidiabetic property against alloxan-induced diabetes and its complications in Wistar rat model. · Journal of ethnopharmacology
2.PMID: 19110407 (2009) — Antisickling properties of divanilloylquinic acids isolated from Fagara zanthoxyloides Lam. (Rutaceae). · Phytomedicine : international journal of phytotherapy and phytopharmacology
3.PMID: 31365939 (2019) — Anti-plasmodial Effects of Zanthoxylum zanthoxyloides. · Planta medica
4.PMID: 23567034 (2013) — Antibacterial, cytotoxic activities and chemical composition of fruits of two Cameroonian Zanthoxylum species. · Journal of ethnopharmacology
5.PMID: 15110696 (2004) — LC/MS/NMR analysis of isomeric divanilloylquinic acids from the root bark of Fagara zanthoxyloides Lam.

Fagara zanthoxyloides

Sources et citations

Calculer une dose sûre de Fagara zanthoxyloides