title: On the alkaloid composition of the snuff drug yopo from upper Orinoco (Venezuela).
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D002845:Chromatography; D002855:Chromatography, Thin Layer; D006213:Hallucinogens / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000032:analysis; D014687:Venezuela
chemical_list: D000470:Alkaloids; D006213:Hallucinogens