This incredibly potent herbal formula from Natural Factors, also available in liquid, is used to stop a cold, flu or other virus in its tracks. It also has anti-fungal and anti-bacterial properties to contribute to improved overall health and function. Anti-Viral Formula harnesses the power of nature to help you fight viruses and combines the best-researched and time-tested herbs to help your immune system deliver a more potent viral-fighting punch, including ECHINAMIDE. ECHINAMIDE is a super-extracted Echinacea purpurea liquid that guarantees high levels of alkylamides, polysaccharides and cichoric acid, the three key actives responsible for echinacea's effectiveness in clinical studies. ECHINAMIDE contains these actives in a base of the whole herb, Echinacea purpurea, because this species contains the highest levels of alkylamides, cichoric acid and polysaccharides. Not all echinacea products are as effective as ECHINAMIDE. It has been clinically tested and proven to reduce the severity and duration of the common cold. The Anti-Viral Formula (Anti-V in the USA) combines the power of ECHINAMIDE with other potent herbs to fight viruses and strengthen immunity.