Nutrition Care Andrographis 1:2 is a practitioner-only, alcohol-free liquid herbal extract prepared from the whole plant of Andrographis (Andrographis paniculata) at a 1:2 extraction ratio. Traditionally used in Western Herbal Medicine, Andrographis supports immune system function and helps relieve symptoms of the common cold and mild upper respiratory tract infections. It also acts as a digestive bitter and supports healthy liver function.