Robert Thomson, in “The Grosset Encyclopaedia of Natural Medicine” says, “… prescribed for a variety of ailments, including dropsy, coughs, sore throats, and catarrhal conditions of the urinary tract. The dosage of the powdered root is ½ to 1 teaspoon, as a tea.”
In Tibb (Islamic Medicine), it is classified as hot and moist: food qualities.
It is Gan Cao in TCM.
In Arabic it is called al-Sus and also Urq al-Suws