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Ce produit n'est pas destiné à diagnostiquer, traiter, guérir ou prévenir toute maladie. Ces déclarations n'ont pas été évaluées par la Food and Drug Administration.
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Ces informations sont fournies à titre éducatif uniquement et ne remplacent pas un avis médical professionnel, un diagnostic ou un traitement. Consultez toujours votre professionnel de santé avant d'utiliser des plantes, surtout si vous êtes enceinte, allaitez, prenez des médicaments ou avez une condition médicale.
Anthoxanthum odoratum
Aromatic European grass whose coumarin gives hay its fresh scent, with traditional use for headaches.
Sweet Vernal Grass (Anthoxanthum odoratum) is an aromatic European grass traditionally used for headache and hay fever, valued for its coumarin content which imparts a fresh hay scent. Its primary active compounds include coumarin, methyl coumarin, flavonoids, and silica, with coumarin acting as a precursor to anticoagulant metabolites. Despite limited modern evidence (Level C), it is employed in herbal teas for mild headache relief and as an aromatic, but its coumarin content raises safety concerns regarding bleeding and hepatotoxicity.
Coumarin from Sweet Vernal Grass undergoes hepatic metabolism via CYP450 enzymes to form 7-hydroxycoumarin and other metabolites, which inhibit vitamin K epoxide reductase (VKOR), thereby reducing synthesis of clotting factors II, VII, IX, X and prolonging prothrombin time. Flavonoids may contribute additional anti-inflammatory effects through COX-2 inhibition and antioxidant activity. The aromatic methyl coumarin acts on olfactory receptors, potentially modulating trigeminal nerve pathways to provide headache relief via aromatherapy. Silica content may support connective tissue health but is not central to therapeutic action.
Aromatic European grass whose coumarin gives hay its fresh scent, with traditional use for headaches.
Sweet Vernal Grass (Anthoxanthum odoratum) is an aromatic European grass traditionally used for headache and hay fever, valued for its coumarin content which imparts a fresh hay scent. Its primary active compounds include coumarin, methyl coumarin, flavonoids, and silica, with coumarin acting as a precursor to anticoagulant metabolites. Despite limited modern evidence (Level C), it is employed in herbal teas for mild headache relief and as an aromatic, but its coumarin content raises safety concerns regarding bleeding and hepatotoxicity.
Coumarin from Sweet Vernal Grass undergoes hepatic metabolism via CYP450 enzymes to form 7-hydroxycoumarin and other metabolites, which inhibit vitamin K epoxide reductase (VKOR), thereby reducing synthesis of clotting factors II, VII, IX, X and prolonging prothrombin time. Flavonoids may contribute additional anti-inflammatory effects through COX-2 inhibition and antioxidant activity. The aromatic methyl coumarin acts on olfactory receptors, potentially modulating trigeminal nerve pathways to provide headache relief via aromatherapy. Silica content may support connective tissue health but is not central to therapeutic action.