5-Bromo-DMT (5-bromo-N,N-dimethyltryptamine) is a brominated indole alkaloid found in certain marine invertebrates. It is the 5-bromo analogue of DMT, a hallucinogen found in many plants and animals. Other naturally occurring 5-substituted analogues of DMT include bufotenin and 5-MeO-DMT, both of which, like DMT, are psychoactive and found in plants and animals. Animal studies on 5-bromo-DMT showed it to produce effects suggestive of sedative and antidepressant activity.