The chewing of the stimulant leaf khat is a habit that is widespread in certain countries of
East Africa and the Arabian peninsula. During the last decade, important progress has been …

The habit of Catha edulis Forsk (khat) chewing has prevailed for centuries among
populations in the horn of Africa and the Arabian peninsula. Fresh leaves of Catha edulis …

Aim The stimulating herbal drug khat is habitually used in East Africa and the Arabian
peninsula but is also imported into other countries. The aim was to study the …

Synthetic cathinones continue to present a formidable challenge to forensic toxicology
laboratories despite the fact that they are often encountered in impaired driving and death …

Introduction Although there is an observed decline in the number of new psychoactive
substances entering the drug market, this phenomenon is still a significant public health …

The synthetic cathinones represent an important class of designer drugs. The widespread
attention and publicity associated with these psychostimulants have resulted in numerous …

Khat leaves are chewed in the Yemen and East Africa for their central stimulant properties.
Five healthy adults were given khat leaves (∼ 60 g each) to chew for 1 h; the residue was …

The synthetic cathinones are powerful psychostimulants that have been associated with
impairment, intoxication and fatal overdose. Forensic laboratories must be able to identify …

Previous studies on the Khat plant (Catha edulis, Celastraceae) illustrated the importance of
using freshly harvested young shoots and leaves such that cathinone, the principle active …

Synthetic cathinones are new psychoactive substances which act as central nervous system
stimulants with mixed sympathomimetic activity. In the last decades, they entered in the drug …