Fusion Health ASTRA 8 IMMUNE TONIC is the original formula and the convalescent medicine par excellence. It is used to promote a healthy immune system and restore good health. ASTRA 8 IMMUNE TONIC is a modern Chinese herbal medicine containing the scientifically proven herb Astragalus formulated with seven other potent immune system herbs including Ganoderma (Reishi mushroom), Codonopsis, Atractylodes, Schizandra, Siberian Ginseng, Ligustrum and Glycyrrhiza (Licorice). ASTRA 8 IMMUNE TONIC can be taken to reduce the risk of developing post-viral fatigue and wherever there is a need to strengthen the immune system against cold, flu and cough. ASTRA 8 IMMUNE TONIC is best taken to promote convalescent recovery. It may also be used within the first 24 hours of a developing cold flu or cough but is not recommended during the acute phase of infection. (Refer Fusion Health Cold Flu Cough)