Delirium due to herbal tea contaminated with tropane alkaloid

Accidental digitalis poisoning due to drinking herbal tea.

It is well recognised that angiotensin converting enzyme inhibitors may cause a profound drop in blood pressure when given to hypertensive patients, especially if the patients are receiving diuretic treatment or are salt depleted.' Profound hypotension may also occur in some patients with congestive heart failure.2 We used only a modest dose of background thiazide diuretic in our study; many hy...

Ipvelutine, 7β-Acetoxy-2α-(tigloyloxy)tropane, an Unusual Tropane Alkaloid from Ipomoea velutina R. Br. (Convolvulaceae)

Convolvulaceae provide a rich source of tropane alkaloids, however, 2-substituted tropanes have been described for only few species of this taxon. In this note, 2,7-diesters such as ipvelutine [7β-acetoxy-2α-(tigloyloxy)tropane] isolated from the vegetative parts of the Australian Ipomoea velutina R. BR. are described as a new group of tropane diesters.

Tea not Tincture: Hepatotoxicity Associated with Rooibos Herbal Tea

A 52-year-old male presented with signs of acute hepatitis and liver failure. Laboratory investigations for common etiologies were unrevealing, but history suggested liver injury secondary to ingestion of a traditional South African herbal tea made with rooibos and buchu. Livery biopsy confirmed a toxin-mediated liver injury. The patient recovered liver function after stopping the herbal tea. A...

Tropane and Granatane Alkaloid Biosynthesis: A Systematic Analysis.

The tropane and granatane alkaloids belong to the larger pyrroline and piperidine classes of plant alkaloids, respectively. Their core structures share common moieties and their scattered distribution among angiosperms suggest that their biosynthesis may share common ancestry in some orders, while they may be independently derived in others. Tropane and granatane alkaloid diversity arises from ...

Tropane alkaloid biosynthesis. A century old problem unresolved.