Lavandula dentata (Lavandula dentata): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does Lavandula dentata work as a medicinal herb?

Lavandula dentata contains several bioactive compounds that contribute to its medicinal effects. Fenchone and camphor provide antimicrobial and expectorant properties, while linalyl acetate and lavandulyl acetate contribute calming, antispasmodic effects on smooth muscle. The volatile oils stimulate digestive secretions and have local analgesic properties when applied topically. These compounds work synergistically to explain its traditional use for headaches, digestive complaints, and wound healing. Evidence Level: C (preliminary research and traditional use).

Does Lavandula dentata interact with any medications?

Lavandula dentata may interact with central nervous system depressants, including benzodiazepines, barbiturates, and alcohol, potentially enhancing sedative effects due to compounds like linalyl acetate. The camphor content may affect medications metabolized by the liver. Due to limited clinical research on this specific species, patients taking prescription medications should consult a healthcare provider before use. Those on anticoagulants or antiepileptic drugs should exercise particular caution. Evidence Level: C (theoretical based on constituent profile).

What is the recommended dosage for Lavandula dentata?

The typical adult dosage for Lavandula dentata is 2-4 grams of dried herb, usually prepared as an infusion or decoction. For essential oil use, it must be properly diluted—typically 1-5% in a carrier oil for topical application. Internal use of essential oil should only occur under professional guidance. Dosage may vary based on the specific condition being addressed. Always start with lower doses to assess tolerance. Evidence Level: Traditional use.

Is Lavandula dentata safe during pregnancy and breastfeeding?

Lavandula dentata is considered unsafe during pregnancy, particularly at therapeutic doses. The camphor content can stimulate uterine contractions and cross the placental barrier. High doses may pose risks to fetal development. Due to insufficient safety data, breastfeeding women should also avoid medicinal use. Culinary amounts in food are generally acceptable, but concentrated preparations or essential oils should be avoided entirely during pregnancy and lactation. Evidence Level: C (based on constituent profile and traditional contraindications).

What are the side effects of Lavandula dentata?

Common side effects of Lavandula dentata include gastrointestinal upset such as nausea or stomach discomfort, particularly with internal use. Undiluted essential oil can cause skin irritation, redness, or contact dermatitis in sensitive individuals. The camphor content may cause dizziness or headache in high doses. People with epilepsy should avoid this herb as camphor may lower the seizure threshold. Discontinue use if adverse reactions occur. Evidence Level: C (based on constituent profile and traditional knowledge).

What is Lavandula dentata used for in traditional medicine?

Lavandula dentata, known as French lavender or toothed lavender, has been used in North African folk medicine for centuries. Traditional applications include treating headaches, digestive disorders including bloating and indigestion, and supporting wound healing due to its antimicrobial properties. The herb is also used for respiratory complaints and as a general calming agent. While these uses are documented in ethnobotanical literature, clinical trials specifically validating these applications are limited. Evidence Level: C (traditional use with preliminary research).

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

Lavandula dentata is an aromatic plant whose essential oils and extracts demonstrate antioxidant, antimicrobial, and insecticidal properties [PMID:35161292, PMID:37655612].

Contexte

Lavandula dentata, also known as fringed lavender, is a flowering plant of the Lamiaceae family characterized by finely-toothed leaves and bulrush-like flower spikes [PMID:33365442]. It is grown both as an ornamental plant and for its commercial essential oil value [PMID:33365442].

Usages traditionnels

Plants from the genus Lavandula have been used as anti-inflammatory drugs in Mediterranean traditional medicine [PMID:27269390].

Composés actifs

The chemical composition varies by region and cultivation; major components of the essential oil include 1,8-cineole (eucalyptol), camphor, borneol, linalool, and β-pinene [PMID:35161292, PMID:35737225, PMID:32965746, PMID:42289415, PMID:41471723]. Phenolic compounds such as rosmarinic acid and eriodictyol-O-rutinoside have also been identified in hydroethanolic extracts [PMID:31382408].

Mécanisme d'action

L. dentata extracts have demonstrated the ability to counteract potassium dichromate-induced reactive oxygen species (ROS) generation in human hepatocarcinoma cells [PMID:31382408]. In a rat model of epilepsy, it is hypothesized to modulate neuroinflammation and oxidative stress [PMID:39861097].

Preuves cliniques

Preuve DAsthma (Animal Model)

Oral administration of L. dentata extract (300 mg/kg) in guinea pigs reduced elevated IgE, triglycerides, total cholesterol, glucose levels in serum, and MDA in lungs, while increasing GSH content in lungs [PMID:31017237]

Preuve DColitis and Edema (Animal Model)

Hydroalcoholic extracts were tested for anti-inflammatory properties in rat colitis (TNBS model) and carrageenan-induced paw edema in mice [PMID:27269390]

Preuve DBreast Adenocarcinoma (In Vitro)

Ethanolic extract exhibited cytotoxic activity with an IC50 value of 39 µg/mL and induced apoptosis in MCF-7 cell lines [PMID:24938609]

Preuve DCandida albicans (In Vitro)

Essential oil demonstrated antifungal and antibiofilm activity against oral strains of C. albicans [PMID:39109727, PMID:34063007]

Preuve DAgricultural Pests (In Vitro)

Essential oils showed toxicity against Mediterranean fruit fly (Ceratitis capitata), green citrus aphid (Aphis spiraecola), and various phytopathogenic fungi [PMID:35737225, PMID:42289415, PMID:42197387]

Sécurité et effets indésirables

A hemolysis assay on human erythrocytes was used to evaluate the toxicity of L. dentata essential oil [PMID:39109727].

Synthèse des preuves

The current evidence consists primarily of in vitro studies and animal models (Level D), demonstrating significant antioxidant, antimicrobial, and anti-inflammatory potential, but there are no human clinical trials provided.

Sources PubMed

1.PMID: 35161292 (2022) — Lavandula dentata L.: Phytochemical Analysis, Antioxidant, Antifungal and Insecticidal Activities of Its Essential Oil. · Plants (Basel, Switzerland)
2.PMID: 35737225 (2022) — Chemical Composition and Insecticidal Properties of Moroccan Lavandula dentata and Lavandula stoechas Essential Oils Against Mediterranean Fruit Fly, Ceratitis capitata. · Neotropical entomology
3.PMID: 42197387 (2026) — Comparative Evaluation of Pesticidal Potential of Five Aromatic Plants, with Emphasis on the Fungicidal Activity of Lavandula dentata and Thymus vulgaris Extracts Against the Soil-Borne Tomato Pathogens Fusarium oxysporum f.sp. radicis-lycopersici and Verticillium dahliae. · Microorganisms
4.PMID: 32965746 (2020) — Lavandula dentata from Italy: Analysis of Trichomes and Volatiles. · Chemistry & biodiversity
5.PMID: 34063007 (2021)

Lavandula dentata

Sources et citations

Calculer une dose sûre de Lavandula dentata