English Ivy (Hedera helix) leaf is a highly effective, clinically proven respiratory agent rich in triterpenoid saponins (specifically alpha-hederin). Alpha-hederin acts on bronchial cells to prevent the internalization of beta-2 adrenergic receptors, thereby relaxing smooth airway muscles and dilating bronchioles. It also thins thick, viscous mucus, making it easier to expel, and calms hyperactive coughing fits.
Educational information only — never stop or change a prescribed medication without talking to your prescriber first.
Avoid oral use of raw ivy leaves, which are highly irritating to the GI tract; only use processed, standardized commercial preparations. May cause mild nausea or digestive upset in sensitive individuals.
Evidence level: Strong
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