“…The present work thus focused on this application. We conducted a case study in transdisciplinary collaboration [ 77 , 78 , 79 ] with a so-called Maestro Tabaquero , a traditional Amazonian healer whose medical specialization focuses on tobacco (a common name for N. rustica in this Amazonian region is mapacho ; other names reported in the literature from various Indigenous American groups include for instance sacha tabaco, yé, ya, tsalagayun’li, semaa, asemaa, real tobacco , Native tobacco, wild tobacco, Aztec tobacco, Hopi tobacco [ 7 , 9 , 10 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 ]. Using a mixed-methods field research approach, we aimed to describe the therapeutic process experience and symptom changes of a patient receiving a weeklong treatment with oral tobacco by a Peruvian-Amazonian Maestro Tabaquero .…”