Stimulants

Fencamine (Altimina, Sicoclor), also known as methamphetaminoethylcaffeine, is a psychostimulant drug of the amphetamine class. It is closely related to fenethylline. It is a prodrug of amphetamine and/or methamphetamine. The drug also contains a caffeine moiety in its chemical structure.

α-Pyrrolidinopentiothiophenone (also known as α-PVT) is a synthetic stimulant of the cathinone and thiopropamine (thiophenylpropylamine) families that has been sold online as a designer drug. It is an analogue of α-PVP where the phenyl ring has been replaced by thiophene.

LR-5182 is a stimulant drug which acts as a norepinephrine–dopamine reuptake inhibitor, structurally related to the better known drug fencamfamine. It was developed by the pharmaceutical company Eli Lilly in the 1970s, and researched for potential use as an antidepressant, although never marketed. LR-5182 has two stereoisomers, both of which are active, although one isomer blocks reuptake of only dopamine and noradrenaline, while the other blocks reuptake of serotonin as well.

A-84543 is a drug developed by Abbott, which acts as an agonist at neural nicotinic acetylcholine receptors with high selectivity for the α4β2 subtype. It is widely used in scientific research into the structure and function of this receptor subtype and has been the lead compound for the development of a large family of related derivatives.

'''para-Ethoxyamphetamine (PEtOA), also known as 4-ethoxyamphetamine (4-EA, 4-ETA, or 4-EtO-A'), is a psychoactive drug of the phenethylamine and amphetamine families which is closely related to para''-methoxyamphetamine (PMA). It has similar effects to PMA in animal studies, although with slightly weaker stimulant effects. Like PMA, it has prominent MAOI activity, and is likely to have similar dangers associated with its use.