Essential oils that support the respiratory function (...
Clove
The clove is native to the North Moluccas, the Spice Islands of Indonesia. The plant is a 20 m high, pyramidal shaped evergreen tree whose white flowers are in triple-branched

Parts used:
Clove (dried flowerbud), leaf, stem
The word ‘clove’ is from the Latin word for ‘nail’ – clavus.
Botany
The clove is native to the North Moluccas, the Spice Islands of Indonesia. The plant is a 20 m high, pyramidal shaped evergreen tree whose white flowers are in triple-branched cymes.
Constituents
Clove is rich in volatile oils principally eugenol (70-90%), eugenyl acetate (17%) and B-caryophyllene as well as flavonoids, galloytannins, phenolic acids and triterpenes.
Possible Interactions
Herb - None documented. Drug - For preparations of clove oil to interact with other medicines administered concurrently, particularly those with similar or opposing effects, should be considered.
Comments
Approved by the German Commission E for cough and dental analgesic and inflammation of mouth and pharynx. The anodyne and mild antiseptic properties documented for clove oil have been attributed to eugenol. Clove oil has antihistaminic and antispasmodic properties, most likely caused by eugenyl acetate. Eugenol, a major constituent of clove oil, inhibits prostaglandin synthesis.
➥ Pharmacopoeia and Other Monographs
German Commission E, BP 2007, Ph Eur 2007