What does the perennial rainforest shrub containing an active alkaloid also found in Voacanga africana and Tabernaemontana undulata induce in large doses?
Tabernanthe iboga:  Iboga stimulates the central nervous system when taken in small doses and induces visions in larger doses. Tabernanthe iboga:  Ibogaine, the active alkaloid, is also used to treat substance abuse disorders and depression.
i don't know