2.6.3 Diphenidine

Diphenidine #

Common Nomenclature Diphenidine
Street & Reference Names 1,2-DEP, DPD, DND
Reference Dosage Threshold 50mg+; Light 70mg+; Common 85mg+; Heavy 110mg+; [TripSit]
Anticipated: Onset / Duration 60 Minutes / 5 Hours
Maximum Dose Experienced 25mg+15mg
Form Powder
Form Oral
Source / Jurisdiction Internet / UK
Personal Rating On Shulgin Scale ++


Diphenidine began to appear on the markets in 2013, shortly after the UK ban on ketamine came into effect. However, as it is much longer lasting and is usually taken orally, it is not generally considered to be a direct replacement. The headspace created is also reported to be notably different.

This chemical gave me my first experience of a dissociative, and this was certainly not what I was anticipating. My expectation had been framed by the fact that the aforementioned ketamine, which was the most well known dissociative, had been widely reported by the media to be a horse tranquilliser. On the basis of this I naively assumed that I would fall into a deep relaxing sedation, with significant drowsiness, and perhaps, eventually, sleep.

I wasn’t even close.

The psychoactive effects took a significant time to materialise. Indeed, much longer than almost any other compound I had experienced at the time. However, when they emerged they were both immersive and distinctive.

My notes from the time were as follows:

When I am sat down, focusing upon something cerebral, I can lose myself within the topic for lengthy periods, which is usually a very rewarding and positive experience.

When I stand and walk around I am immediately aware of the disjointed weirdness of the world which I now perceive. This initially invoked some fear, but familiarity has tended to soften it.

Now that this adjustment has occurred, and I have reminded myself that this is just a trip, and thus is a temporary phenomenon, it has become interesting and intriguing. The feeling of general numbness adds to this aspect, in that movement, the simple act of walking, feels more like a seamless floating enterprise.

Overlaid on this, a feeling of general contentment has also taken hold and anxieties have dissipated.

I can now see why dissociatives are such popular recreational drugs.

The overall experiment was both intriguing and enjoyable. I found diphenidine to be multifaceted, in that on the dose I opted for I could solicit different aspects of the experience almost at will.

On the flip side, it should be noted that there have been some reports of tragedy with respect to the use of this drug, which were always in the back of my mind. It also felt less smooth than its cousin, ephenidine, which I have subsequently sampled and explored more frequently.

Diphenidine provided a very strange ride indeed, but with edges which caused sufficient concern to prevent me from going too deep. Whilst I was under the influence, those edges, perhaps jittery in nature, were very mild. In fact they could, at least to some degree, have been invoked by familiarity with those reports, and by the negative PR which this class of drug tended to attract from the media at the time. I suspect that had ephenidine not emerged, I would have overcome them and used it for more comprehensive exploration.

Playing exclusively in the shallow end, this was a good introduction to the world of dissociatives. It was one from which I certainly derived a degree of insight and pleasure. Research, however, indicates that it should always be approached with care, and never binged.