Corydalis and crepe jasmine are two unique vegetation the two used for pain relief. They most probably have unique mechanisms of action on the body, specified the information which i've gathered. Corydalis would be the genus of a perennial flowering plant during the poppy family with over 400 species. https://jeffreytmdsi.tinyblogging.com/alternative-natural-pain-relief-to-replace-traditional-painkillers-an-overview-82798595