Copalchi (Hintonia latiflora): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does Copalchi work to lower blood sugar?

Copalchi (Hintonia latiflora) contains active compounds including coutareagenin, chlorogenic acid, and neoflavonoids that appear to enhance glucose uptake in cells. These polyphenolic compounds may improve insulin sensitivity and support healthy glucose metabolism. The bark has been used traditionally in Mexico for diabetes management, and preliminary clinical evidence (Level C) suggests it may help reduce elevated blood glucose levels, though the exact molecular mechanisms require further research.

Can I take Copalchi with my diabetes medications?

Copalchi should not be combined with conventional diabetes medications without medical supervision. Taking Copalchi alongside drugs like metformin, insulin, or sulfonylureas may cause additive blood sugar-lowering effects, potentially leading to hypoglycemia (dangerously low blood glucose). If you are prescribed diabetes medication, consult your healthcare provider before adding Copalchi. Monitoring blood glucose levels closely is essential if combination therapy is approved.

What is the recommended dosage for Copalchi bark?

The typical adult dosage for Copalchi is 1-3 grams of dried bark prepared as a decoction, taken 2-3 times daily. Standardized extracts are also available and should be used according to manufacturer instructions. Traditional preparation involves simmering the bark in water. Always start with the lowest effective dose and adjust based on blood glucose monitoring. Consult a qualified healthcare practitioner for personalized dosing guidance.

Is Copalchi safe during pregnancy or breastfeeding?

Copalchi is considered unsafe during pregnancy and breastfeeding and should be avoided. There is insufficient safety data for use in these populations, and the herb's effects on blood glucose could pose risks to fetal development or nursing infants. Women who are pregnant, planning pregnancy, or breastfeeding should not use Copalchi. Additionally, this herb is contraindicated for children due to lack of safety research.

What is Copalchi used for in traditional medicine?

Copalchi bark has been used for centuries by indigenous peoples in Mexico for managing diabetes, reducing fever, treating malaria, and supporting digestion. Traditional applications include blood sugar regulation and use as a general tonic. Modern interest focuses primarily on its antidiabetic properties. Evidence supporting these uses is rated at Level C, indicating promising but limited clinical data. The bark contains polyphenols and neoflavonoids that contribute to its medicinal effects.

What are the side effects of taking Copalchi?

Common side effects of Copalchi include gastrointestinal upset such as nausea or stomach discomfort. The primary concern is hypoglycemia (low blood sugar), which can cause symptoms like dizziness, sweating, confusion, and weakness. This risk increases when Copalchi is combined with other blood sugar-lowering agents. Discontinue use if you experience signs of low blood glucose and seek medical attention. Those with diabetes should monitor glucose levels regularly while using this herb.

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 28 articles PubMed · modèle : gemma4:31b

Résumé

Copalchi (Hintonia latiflora) is a Mexican medicinal plant used primarily for the treatment of diabetes and gastrointestinal disorders [PMID:23183088, PMID:29988415].

Contexte

Hintonia latiflora is a tree native to the American continent belonging to the Rubiaceae family [PMID:29923593]. It has a documented ethnomedical record exceeding 400 years and is included in the Mexican Herbal Pharmacopoeia [PMID:24412552, PMID:29988415].

Usages traditionnels

In Mexican folk medicine, it is used to treat diabetes, gastric ulcers, gastrointestinal complaints, and malaria [PMID:23183088, PMID:24412552, PMID:24549754].

Composés actifs

Bioactive constituents include the neoflavonoid coutareagenin [PMID:10719614, PMID:25442266], 4-phenylcoumarins (such as 5-O-beta-D-glucopyranosyl-7,3',4'-trihydroxy-4-phenylcoumarin), chlorogenic acid, and cucurbitacins [PMID:17575991, PMID:24412552, PMID:3655801].

Mécanisme d'action

The herb may act as an inhibitor of alpha-glucosidases, which delays the liberation of glucose from complex carbohydrates and retards glucose absorption [PMID:23398496]. Additionally, an extract of H. latiflora demonstrates a vasodilating effect likely resulting from the inhibition of G protein-induced increase in intracellular calcium [PMID:25442266].

Preuves cliniques

Preuve BType 2 Diabetes

In an open prospective trial of 41 subjects, a dry concentrated bark extract significantly reduced fasting glucose, postprandial glucose, and HbA1c (from 7.49% to 6.82%) over six months [PMID:24678614].

Preuve DHyperglycemia (Animal Model)

Oral administration of H. latiflora extract or pure coutareagenin significantly reduced blood glucose levels in streptozotocin-induced diabetic rats [PMID:10719614, PMID:17575991, PMID:9272239].

Preuve DGastric Ulcers (Animal Model)

Aqueous extracts from stem-barks and leaves demonstrated gastroprotective activity in an ethanol-induced gastric injury model in rats [PMID:23183088].

Preuve DMalaria (Animal Model)

Ethyl acetate extracts of the stem bark suppressed total parasitemia and schizont numbers in mice infected with Plasmodium berghei [PMID:17067158].

Sécurité et effets indésirables

In a sub-acute 28-day study in mice, doses of 200 and 1000 mg/kg of methanolic stem bark extract caused diarrhea, although no histopathological alterations were seen in the brain, small bowel, liver, pancreas, or kidneys [PMID:29923593]. A clinical trial reported very good tolerance with no side effects or hypoglycemic episodes [PMID:24678614]. One case report mentions toxic hepatitis associated with Copalchi [PMID:25908214].

Synthèse des preuves

Evidence is primarily based on preclinical animal models (D) and one small open-label clinical trial (B), suggesting efficacy in glucose regulation and gastroprotection.

Sources PubMed

1.PMID: 23183088 (2013) — Gastroprotective effect of Hintonia latiflora and Hintonia standleyana aqueous extracts and compounds. · Journal of ethnopharmacology
2.PMID: 23398496 (2013) — Mexican antidiabetic herbs: valuable sources of inhibitors of α-glucosidases. · Journal of natural products
3.PMID: 24412552 (2014) — Phenological and geographical influence in the concentration of selected bioactive 4-phenylcoumarins and chlorogenic acid in Hintonia latiflora leaves. · Journal of ethnopharmacology
4.PMID: 25442266 (2014) — The vasodilating effect of a Hintonia latiflora extract with antidiabetic action. · Phytomedicine : international journal of phytotherapy and phytopharmacology
5.PMID: 29988415 (2018) — Molecular Markers Associated With Chemical Analysis: A Powerful Tool for Quality Control Assessment of Copalchi Medicinal Plant Complex.

Copalchi

Sources et citations

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