Horehound is a perennial member of the mint family that is distributed
throughout Europe, North Africa and the central and western regions of
Asia. The herb has a long history of use as flavoring in teas, tonics
and other beverages, most notably horehound ale.
Horehoundhas also been used for centuries to produce teas, syrups
and candies, or lozenges. In addition to containing a high degree of
mucilage, the herb is known for it marrubiin, that is the
subject of considerable study at present.