Cytotoxic intercalating agent

Sedative

Hallucinogen

Alkaloid from Arariba rubra (Rubiaceae), Passiflora incarnata (Passifloraceae) and many other Passiflora spp., and a wide range of spp. in several families. Also present in tobacco smoke. Prod. by Nocardia sp. and Streptomyces sp.

Inhibitor of serotonergic dorsal raphe neurons

GABA-ergic effects