Isoforskolin is the principle active component of C. forskohlii native to China. Isoforskolin reduces the secretion of lipopolysaccharide (LPS)-induced cytokines, namely TNF-α, IL-1β, IL-6 and IL-8, in human mononuclear leukocytes. Isoforskolin acts as an anti-inflammatory agent for the treatment of Lyme arthritis.