Marrubium Vulgare, also known as white horehound, is a perennial herb that is native to Europe, North Africa, and western Asia. The plant has been used for centuries for medicinal purposes, especially for respiratory issues and digestive problems. There are several synonyms for Marrubium Vulgare, including Common Horehound, Great Horehound, and Houndsbane. Additionally, the plant has various vernacular names in different regions, such as Bull's Blood, Eye of the Star, and Seed of Horus. Marrubium Vulgare is widely available in the form of teas, tinctures, and capsules and is commonly used for its anti-inflammatory and expectorant properties.