This plant is used as a sedative, sometimes with ayahuasca. Scientific study likewise indicates that J. pectoralis preparations can possess anti-inflammatory and relaxant effects.
It is also admixed to epená (Virola) snuff to make it smell more pleasant. In particular var. stenophylla might also be hallucinogenic in certain preparations; it is known to wajacas (shamans) of the Craós tribe in Brazil, who know that variety as mashi-hiri and consider it a potent entheogen, not to be taken by the uninitiated.