Action ► Peel—laxative, feeble stomachic, emmenagogue. Leaves— prescribed in the treatment of arthritis and bronchitis. Flowers— aqueous extract is employed in scurvy, fever, inflammation, nervous and hysterical cases. Fruit— a decoction is used to recover from cachexia left by intermittent fever and in cases of enlarged spleen. Dried rind—used in atonic dyspepsia.
Key application ► Cut peel—in loss of appetite and dyspeptic ailments. (German Commission E.). As a bitter tonic. (British Pharmacopoeia.)
The main constituents of the peel include the alkaloid synephrine and N-methyltyramine. Synephrine, an alpha 1-adrenergic agonist, stimulates a rise in blood pressure through vasoconstriction. N-methyltyramine also raises blood pressure.
The root gave xanthyletin. The essential oil exhibits antifungal activity, it was found effective in treatment-resistant fungal skin diseases. (Expanded Commission E Monographs.)
Commercially available Citrus vul-garis (bitter orange) extracts are often promoted for weight loss due to purported thermogenic effects. In animal models, synephrine causes weight loss, but also increases cardiovascular toxic-ity. (Natural Medicines Comprehensive Database, 2007.)
Was this article helpful?
Learn what you can do with herbs! How to Plant, Grow, and Cook with Natural Herbs. Have you always wanted an herb garden but didn't know how to get started? Do you want to know more about growing your own herbs in the privacy of your home and using them in a variety of cooking?