Ayahuasca Analogues is the first book to explore in detail the human pharmacology of ayahuasca, fabled jungle ambrosia. After reviewing carefully the ethnobotanical, chemical and pharmacognostical literature on the Amazonian Amrta, Ott describes more than three dozen psychonautic experiments designed to elucidate the incredible pharmacology of ayahuasca potions, ingenious amalgamations of extracts of the ayahuasca liana, depicted above, which contain enzyme inhibitors, and extracts of leaves of other plants containing DMT (like Psychotria viridis, depicted below), a potent entheogen ordinarily inactive orally. Ott boldly characterizes the discovery of ayahuasca potions by various groups of South American Indians as "one of the most sophisticated pharmacognostical discoveries of all antiquity."