Origins in the Amazon
Ayahuasca -- from the Quechua aya (spirit, ancestor) and wasca (vine, rope), meaning "vine of the soul" -- is a psychoactive decoction prepared from the stem of Banisteriopsis caapi combined with the leaves of Psychotria viridis (chacruna) or Diplopterys cabrerana (chagropanga). The brew has been central to the spiritual and medicinal practices of indigenous peoples across the Amazon and Orinoco basins for centuries, and likely millennia.
Archaeological evidence points to extraordinary antiquity. A ritual bundle discovered in a rock shelter in southwestern Bolivia, dating to approximately 1,000 CE, tested positive for five psychoactive compounds including DMT and harmine -- the key active constituents of ayahuasca. A ceremonial cup found in Ecuador containing ayahuasca residues has been estimated at over 2,500 years old. These findings suggest that the practice of combining MAO-inhibiting beta-carboline plants with DMT-containing admixtures is one of the oldest documented pharmacological traditions in the Americas.
