Properties and actions:caffeic acid derivatives (mainly chicoric acid), alkamides and polysaccharides are the main active constituent in echinacea, the main of mulone extract.it stimulates the immune response by enhancing phagocytosis by macrophages and activation of natural killer cells.it increases cytokine production, such as interferon which helps in controlling viral infection. mulone has mild direct antibacterial activity and direct anti-inflammatory activity. mulone has anti-hyaluronidase enzyme activity which prevents spreading of infection and accelerates recovery. mulone increases phagocytosis of candida by 45% and decreases the rate of recurrence of fungal infections. through these actions- mulone enhances the resistance to viral, bacterial and fungal infections in healthy subjects and shortens the duration of illness and helps in rapid recovery.indications:-prevention and treatment of common cold and influenza-prophylactic therapy in cases of increased suscept