Loading...
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.
Loading...
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.
Ephedra sinica
Herbe chinoise ancienne contenant de l'épéhrine ; utilisée pour les affections respiratoires ; aujourd'hui réglementée en raison des risques cardiovasculaires.
Ephedra sinica is a traditional Chinese herb containing ephedrine and pseudoephedrine, used historically for asthma and respiratory congestion. Its modern use is primarily as a source of pharmaceutical bronchodilators, but due to significant cardiovascular risks (hypertension, palpitations, stroke), it is now a regulated substance. Key active compounds include ephedrine, pseudoephedrine, tannins, and flavonoids.
Ephedrine and pseudoephedrine act as sympathomimetic amines, stimulating alpha- and beta-adrenergic receptors. Beta-2 receptor activation in bronchial smooth muscle causes bronchodilation, while alpha-1 receptor activation leads to vasoconstriction and increased blood pressure. These compounds also promote norepinephrine release from presynaptic neurons and inhibit its reuptake, contributing to central nervous system stimulation and potential cardiovascular adverse effects.
Herbe chinoise ancienne contenant de l'épéhrine ; utilisée pour les affections respiratoires ; aujourd'hui réglementée en raison des risques cardiovasculaires.
Ephedra sinica is a traditional Chinese herb containing ephedrine and pseudoephedrine, used historically for asthma and respiratory congestion. Its modern use is primarily as a source of pharmaceutical bronchodilators, but due to significant cardiovascular risks (hypertension, palpitations, stroke), it is now a regulated substance. Key active compounds include ephedrine, pseudoephedrine, tannins, and flavonoids.
Ephedrine and pseudoephedrine act as sympathomimetic amines, stimulating alpha- and beta-adrenergic receptors. Beta-2 receptor activation in bronchial smooth muscle causes bronchodilation, while alpha-1 receptor activation leads to vasoconstriction and increased blood pressure. These compounds also promote norepinephrine release from presynaptic neurons and inhibit its reuptake, contributing to central nervous system stimulation and potential cardiovascular adverse effects.