2.3.2 3,4-CTMP

3,4-CTMP #

Common Nomenclature 3,4-Dichloromethylphenidat
Street & Reference Names 34ctmp
Reference Dosage Threshold 2mg+; Light 5mg+; Medium 10mg+; Strong 20mg+ [Drugs-Forum]
Threshold 1mg+; Light: 2mg+; Common 4mg+; Heavy 6mg+ [TripSit]
Anticipated: Onset / Duration 1 Hour / 12 Hours
Maximum Dose Experienced 7mg
Form Powder
RoA Oral
Source / Jurisdiction Internet / UK


I sampled this in March 2015, shortly before it was banned in the UK via a Temporary Class Drug Order (TCDO). Compared to other stims in its class it was potent, at least mg for mg, but I did not find it to be particularly recreational.

It was certainly functional, in that I was lively and awake under its influence. In line with the durations cited by reference sites, I also recall that I was stimulated for almost the entire day.

Due to the legislation, lack of significant uplift in mood, and occasional warnings of vasoconstriction and associated risks, I only tested it on the one occasion. Despite this, and again demonstrating that experience is subjective, 3,4-CTMP was a winner (‘fastest riser’) in the VICE Netherlands Designer Drug Awards in 2014. It was also the most searched for drug on one of the main Internet forums in 2012, and was sometimes suggested as an alternative to methylphenidate.

By and large, it now appears to have faded into the annals of history.