Ayahuasca Medicine: The Shamanic World of Amazonian Sacred Plant Healing by Alan Shoemaker — For more than 20 years American-born Alan Shoemaker has apprenticed and worked with shamans in Ecuador and Peru, learning the traditional methods of ayahuasca preparation, the ceremonial rituals for its use, and how to commune with the healing spirit of this sacred plant as well as the spirit of the San Pedro cactus and other sacred plant allies.
Banisteriopsis caapi (ayahuasca). A South American jungle vine of the family Malpighiaceae. It is used to prepare ayahuasca, a decoction with a long history of entheogenic uses as a medicine and "plant teacher" among the indigenous peoples of the Amazon Rainforest. It contains harmine, harmaline, and tetrahydroharmine, all of which are both beta-carboline harmala alkaloids and MAOIs. The MAOIs in B. caapi allow the primary psychoactive compound, DMT to be orally active.