Abstract
Amphetamines, tryptamines, phencyclidines, tetrahydrocannabinol and substances of
the ecstasy group are characterized as stimulants, hallucinogens and entactogens.
The various effects of each group and their mode of action in different transmitter
systems are described. 28 new compounds of the amphetamine and tryptamine series has
been calculated, which exceed the hallucinogenic effects of mescaline. The different
pathways of the metabolism of MDMA (ecstasy) and MDE in humans may probably explain
their individual effects.
