Evidence supporting the use of: Licorice
For the health condition: Cough (spastic)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Licorice for Spastic Cough: Evidence Overview

Licorice (Glycyrrhiza glabra) has been traditionally used in many cultures as a remedy for coughs, including spastic (dry, irritating) coughs. Beyond its longstanding use in traditional medicine systems such as Traditional Chinese Medicine and Ayurveda, modern scientific research provides some support for its efficacy.

The main active components of licorice, including glycyrrhizin and flavonoids, have demonstrated anti-inflammatory, demulcent (soothing), and expectorant properties in laboratory and animal studies. These properties may help reduce airway inflammation and soothe irritated mucous membranes, which potentially alleviates cough reflex sensitivity. Some clinical studies and reviews suggest that licorice extracts can be beneficial as part of herbal preparations for relieving symptoms of cough and sore throat.

However, most clinical evidence involves licorice in combination with other herbs, and studies specifically targeting spastic cough are limited. The evidence supporting licorice’s use for cough is moderate (hence the rating of 3), with further research needed for definitive conclusions. Caution is warranted, as excessive or prolonged use of licorice can lead to adverse effects such as hypertension and hypokalemia due to its glycyrrhizin content.

In summary, licorice’s use for spastic cough is supported by both traditional use and moderate scientific evidence, especially for its soothing and anti-inflammatory effects on the respiratory tract.

More about Licorice
More about Cough (spastic)

Products containing Licorice

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