+ Optical isomers of<unk>  100px 100px 100px 100px L-amphetamine D-amphetamine<unk> s are a class of compounds based upon the<unk>  structure; it includes all derivative compounds which are formed by replacing, or substituting, one or more hydrogen atoms in the<unk>  core structure with substituents. The compounds in this class span a variety of pharmacological subclasses, including stimulants, empathogens, and hallucinogens, among others. Examples of<unk> s are<unk>  (itself), methamphetamine, ephedrine, cathinone, phentermine, mephentermine, bupropion, methoxyphenamine, selegiline, amfepramone, pyrovalerone, MDMA (ecstasy), and DOM (STP). Some of<unk> 's substituted derivatives occur in nature, for example in the leaves of Ephedra and khat plants which have been used by humans for more than 1000 years for their pharmacological effects.<unk>  was first produced at the end of the 19th century. By the 1930s,<unk>  and some of its derivative compounds found use as decongestants in the symptomatic treatment of colds and also occasionally as psychoactive agents. Their effects on the central nervous system are diverse, but can be summarized by three overlapping types of activity: psychoanaleptic, hallucinogenic and empathogenic. Various<unk> s may cause these actions either separately or in combination.
Substituted amphetamine
Substituted phenethylamine
Substituted tryptamine
Synthetic cannabinoids
Amphetamine type stimulant
Antipsychotic ester
Psychedelic drug
Loline alkaloid