Marrubium vulgare is a flowering plant in the mint family (Lamiaceae), native to Europe, northern Africa, and southwestern and central Asia. It is also widely naturalized in many places, including most of North and South America.

Ricola Ltd./Ricola AG is a Swiss manufacturer of cough drops, instant tea, tea bags, and breath mints. The head office of Ricola is located in Laufen, Basel-Country and has subsidiaries in Italy, Great Britain, Asia, and the United States. According to the company, it exports to around 45 countries in Europe, Asia, and North America.