... throats, the Pawnee for headaches, and many tribes used it as an analgesic, including the Sioux from South Dakota.Echinacea is ... adaptogen, alterative, antiseptic, aphrodisiac, depurative, diaphoretic, digestive, sialagogue. It is harvested in the autumn and dried for later use ... shows E. purpurea has antidepressant properties in white rats as it increased the stimulating action of L-DOPA. Echinacea is ...