2.3.7 4F-EPH

4F-EPH #

Common Nomenclature 4-Fluoromethylphenidate
Street & Reference Names 4-FEPH
Reference Dosage Light 5mg+; Common 10mg+; Strong 30mg+ [Oral, TripSit].
Anticipated: Onset / Duration 5 Minutes / 4 Hours
Maximum Dose Experienced 18mg+10mg+15mg
Form Powder
RoA Insufflated
Source / Jurisdiction Internet / UK


Released at the end of 2015, 4F-EPH was legally available during the same period as 4F-MPH, and for me, it was that chemical’s ugly little sister.

Why do I state this?

I do so because, whilst having significant similarities in terms of effect, I found it to provide a less smooth experience, which sometimes had a distinct jittery feel.

I tested it both orally and via insufflation, but both routes led me to reach the same conclusion.

Whilst accepting that this seemed to have many fans who did consider it to be a recreational drug, I largely found it to be functional.

As this is active at relatively low doses, particular caution is advised with respect to this. Note also that as EPH is cited as being caustic to the nasal septum, insufflation is probably best avoided.