Phytochemistry
Coleus is rich source of secondary metabolites such as terpenoids, alkaloids and isoflavanoids.[1,2] Forskolin the major diterpenoid, is known worldwide as fat burning molecule. Forskolin upregulates cyclic 3?,5?-adenosine monophosphate (cAMP) concentration.[3] Root extracts contain other diterpenoids viz., 9-deoxyforskolin, 1, 9-dideoxyforskolin, 1,9 dideoxy-7-deacetylforskolin, 7-deacetyl-1-deoxyforskolin, Forskolin I, Forskolin J and Forskolin L etc.[4]