Carolus mixtura® Carolus Mixtura® is a natural non-alcoholic eight-herb product for the respiratory tract and throat. The active ingredients include sundew extract, liquorice syrup, peppermint oil, anise oil, thyme oil, clove oil, lavender oil and sage oil.   Silicic acid gel (silica and carmellose) Sundew extract Liquorice syrupLiquorice (Glygyrrhiza glabra) is one of the best-known natural substances. It can be perfectly combined with other herbs. It fades the taste of bitterer herbs.  Essential oils (peppermint, anise, thyme, carnation, lavender and sage). Anise oil and thyme oil help to maintain the normal well-being of mucous membranes by reducing the viscosity of respiratory tract mucus.