title: Complexes of ergot alkaloids and derivatives. IV. Investigations into the nature of ergot alkaloid--xanthine complexes.
mesh_terms: D002110:Caffeine; D004876:Ergot Alkaloids; D007211:Indoles; D008433:Mathematics; D012995:Solubility; D013053:Spectrophotometry; D014970:Xanthines
chemical_list: D004876:Ergot Alkaloids; D007211:Indoles; D014970:Xanthines; D002110:Caffeine