The Functional Therapeutic Chemical Classification System (FTC) defines over 20,000 mechanisms and modes of action for approved drugs. The resource abstracts away from the traditional chemical structure-based approach and focuses solely on the mode of action of drugs. The classification sorts therapeutic agents based on their function in the human body. Please note that this resource is no longer actively maintained (source: https://github.com/loopasam/ftc/issues/1).
approved drug classification drug