Minutus

Many of the articles that discuss the therapeutic use of licorice root do not provide dosage guidelines specifically for upper respiratory symptoms; in the 1st link below, the following guidelines are suggested for general use of this supplement, citing PubMed and WHO:

"LIQUID licorice extract consumption by an individual should not exceed 30 mg/mL of glycyrrhizic acid. Ingesting more could cause unwanted side effects (such as significant increase in blood pressure, as mentioned here). Please read article for full details.

The recommended dosage of licorice root POWDER is less than 75 milligrams per day, according to World Health Organization (WHO) guidelines.

Licorice root TEA: It’s not recommended that people ingest more than 8 ounces of licorice tea per day."
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Deb

https://www.healthline.com/health/licor ... sweet-root

https://plantmedicines.org/licorice-mers-sars/

https://www.botanicalmedicine.org/licor ... ntifungal/

https://nccih.nih.gov/health/licoriceroot

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4629407/
How may licorice be best taken and how much?
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Dr.Sandeep Saluja