[3] Due to its similarity to mephedrone, it is thought to be a stimulant and entactogen drug of the phenethylamine, amphetamine, and cathinone chemical classes.

[4] It has been marketed alone or in mixtures with other substituted cathinones under the name "NRG-2", although other blends such as "NRG-1" may have been more ambiguous with their ingredients.

[5] 4-MEC is reported to have been used as the active ingredient in fake "Ecstasy" pills in some countries such as New Zealand.

Injecting 4-MEC appears to be rough on veins and is sometimes accompanied by a burning sensation.

Intravenous dosages are comparable to oral ones, although more care should be given to safety (with regard to possibility of overdose and long-term effects).