"Cathinone and its derivatives are closely related to the phenethylamine family (which includes amphetamine and methamphetamine), but with a lower potency than the latter.¹³ They are characterised by the presence of a ?-keto group on the side chain of the phenethylamines. Cathinone, the principal active ingredient in the leaves of the khat plant (catha edulis), can be considered as the prototype from which a range of synthetic cathinones have been developed.