Tabernanthe iboga is a shrub of West Africa, whose roots are used for stimulatory, hallucinogenic, and sedative properties (Ujváry, 2014). From: Addictive Substances and Neurological Disease, 2017 https://www.sciencedirect.com/topics/neuroscience/tabernanthe-iboga?fbclid=IwAR2sJTuejKkHjb1uvJSG37LrLefxLTcRE7IyD_T8MXoPXfyKKwt3YpN8UmQ...