<unk> (2-(methylamino)-propiophenone, α-methylamino-propiophenone) is a psychoactive stimulant. It is sometimes used as a recreational drug and is considered to be addictive. It is usually snorted, but can be smoked, injected, or taken orally.<unk>  is currently a DEA Schedule I controlled substance in the United States.
The C=O bond at the Rβ-position (directly right of the benzene ring) is slightly polar, and as a result the drug does not cross the lipid blood-brain barrier quite as well as amphetamine. Its effects differ slightly from the amphetamines, especially in its ability to act as an serotonin reuptake inhibitor. Nevertheless, it is a potent CNS stimulant and dopamine reuptake inhibitor. Chronic high dosage abuse may result in acute mental confusion ranging from mild paranoia to psychosis. These symptoms typically disappear quickly if use is stopped.
Unlike methamphetamine,<unk>  is not legal under any circumstances due to its classification as a Schedule I substance. In contrast, methamphetamine has certain medical uses such as treatment of morbid obesity, narcolepsy, and ADHD.
Methcathinone
Delmadinone
Diethylcathinone
Methylenedioxymethcathinone
Nitisinone
4-Methylmethcathinone
Dimethylaminopropionylphenothiazine
Cyclochlorotine