The partition chromatography of alkaloids. Part IV. The assay of solanaceous drugs

Studies on Datura Leichhardtii Muell. Ex Benth

The variation in the proportion of hyoscyamine and hyoscine in the aerial parts of Datura leichhardtii has been investigated. From the roots, the alkaloids 7-hydroxy-3, 6-ditigloyloxytropane, 3α-tigloyloxytropane and meteloidine have been isolated.

A note on the alkaloidal content of Datura innoxia Miller

Hyoscyamine, hyoscine and meteloidine have been found in the leaves, herbs and roots of D. innoxia Miller, but only hyoscyamine and hyoscine are present in flowers, pericarps and seeds. In addition, the roots contain 7-hydroxy-3,6-ditigloyl-oxytropane, (–)-3α,6β-ditigloyloxytropane, tropine and pseudotropine. All the parts of the plant contain a higher percentage of hyoscyamine or hyoscyamine and meteloidine mixture than of hyoscine.

Rauwolfia serpentina in the treatment of high blood pressure; a review of the literature

The root of the Rauwolfia serpentina Benth (N. O. Apocyanaciae) has been in use in India for hundreds of years for a host of unrelated ailments. Since 1949, after the English publication of a clinical report by the author on Rauwolfia serpentina therapy in fifty cases of essential hypertension, the plant has gained universal acclamation as a useful therapeutic weapon in high blood pressure states. The whole subject of Rauwolfia serpentina therapy in hypertension has been reviewed up to the present time, including discussions on the history of the plant, its various species and types, nomenclature, geographic distribution, chemistry, pharmacologic actions and clinical studies, reported on the subject from all over the world.