Peyotl and mescaline.
D000884:Anthropology, Cultural; D004341:Drug Evaluation / Q000639:trends; D004335:Drug and Narcotic Control / Q000331:legislation & jurisprudence; D049690:History, Ancient; D006801:Humans; D007198:Indians, North American / Q000266:history; D007199:Indians, South American / Q000266:history; D008519:Medicine, Traditional; D008635:Mescaline / Q000266:history; D008800:Mexico; D009229:Mythology; D010568:Peru; D011562:Psilocybin; D011600:Psychopharmacology / Q000266:history; D012068:Religion and Medicine; D014481:United States
D011562:Psilocybin; D008635:Mescaline