How is ayahuasca made from Banisteriopsis vines in South America?

Ayahuasca is a traditional hallucinogenic drink prepared by mashing and boiling the stem and bark of the tropical liana Banisteriopsis caapi with the leaves of specific plants that contain the psychoactive substance DMT, such as chacruna (Psychotria viridis) or chagropanga (Diplopterys cabrerana).12

The preparation process involves boiling these ingredients for several hours. The B. caapi vine is essential to the brew because it contains beta-carboline alkaloids, including harmine. These compounds act as monoamine oxidase inhibitors, which prevent the digestive system from breaking down DMT, thereby allowing the substance to reach the brain and produce its psychoactive effects.21

While ayahuasca has deep roots in Indigenous South American traditions, its use has expanded globally, leading to the formation of various groups. It is important to note that the use of such substances carries significant risks, including potential psychological distress and dangerous interactions with other substances. Ethical principles dictate that individuals should be fully aware of these health hazards, and the unauthorized commercial exploitation of Indigenous biological resources, such as the patenting of B. caapi, is widely condemned as biopiracy.132