Adulteration of allegedly "natural herbal medicines" with undeclared synthetic drugs is a common and dangerous phenomenon of alternative medicine. The purpose of the study was to develop a procedure for detection of most common synthetic adulterants in herbal remedies, using high-pressure liquid chromatography-electrospray tandem mass spectrometry (LC-ESI-MS-MS). Eighty drugs belonging to vario...

Ayurveda an ancient Indian system of medicine claims to have remedy for disorders likes’ jaundice and liver cirrhosis, which is inadequate with present allopathy. The present study was conducted to find out the effectiveness of some herbal extracts mixture (HEM) against ethanol induced liver damage in experimental animal models. An attempt is made to prepare formulation with herbal extracts tha...

Rhein (4,5-dihydroxy-9,10-dioxoanthracene-2-carboxylic acid, cassic acid) is a pharmacological active component found in Rheum palmatum L. the major herb of San-Huang-Xie-Xin-Tang (SHXXT), a medicinal herbal product used as a remedy for constipation. Here we have determined multiple bioactive components in SHXXT and investigated the comparative pharmacokinetics of rhein in rats. A sensitive and...

In a maca-containing herbal supplement claimed to remedy erectile dysfunction, a new sildenafil analogue was found using adulterant screening with TLC, GC-MS and LC-MS/MS. This compound was isolated by column chromatography and HPLC, and identified by extensive 1D- and 2D-NMR and mass spectral analyses. The structure of this new compound was established as 5-[2-ethoxy-5-(piperazine-1-carbonyl) ...

Cannabis is not indigenous to southern Africa, having probably been introduced into the Mozambique area in pre-colonial times by Arab traders many centuries ago. It was adopted by the Khoikhoi as a valued intoxicant and herbal remedy that was chewed or boiled, and was traded from the Xhosa communities living in the eastern parts of South Africa. The smoking of it began after the introduction of...

Jaundice, which is caused by accumulation of bilirubin, is extremely common in newborn infants. Phototherapy is an effective treatment, but a drug therapy would also be desirable. A Chinese herbal remedy for jaundice called Yin Zhi Huang is now shown to activate a liver receptor that enhances the clearance of bilirubin (see the related article beginning on page 137). This discovery could lead t...

A novel human coronavirus has been reported to be the causative agent of severe acute respiratory syndrome (SARS). Since replication of HcoVs depends on extensive proteolytic processing, the main proteinase, 3CLpro, is an attractive drug target for anti-SARS agents. We have employed molecular docking of a chemical database into the active site of 3CLpro to search for non-peptidyl inhibitors. On...