Interesting Drug
Had my first experience with Diphenidine yesterday. I am a big fan of dissociatives and have had extensive experience with both Ketamine, MXE (my beloved, and much missed), 3-MeO-PCP and with some of the less-notable ones that came out after the MXE ban. As previous people have mentioned, Diphenidine lacks much of the *sparkle* of the arylcyclohexamines but that's not to say that it lacks merit or doesn't warrant further exploration.
I've not written up 'proper' trip reports here (i.e. with exact timings) as I wanted to experience the drug without thinking too much about the process, but here are my first two trip reports.
Height: 170cm/5'6"
Weight: 73k/160lbs/11.5 stone
Drug interactions: No alcohol, nicotine, cannabis or other drugs were consumed during both these trips (apart from the benzos taken post-trip)
*PLEASE NOTE THAT I AM AN EXPERIENCED USER OF DISSOCIATIVES. THE DOSAGE I TOOK MAY WELL BE TOO STRONG FOR NOVICE USERS. IF THIS IS YOUR FIRST TRY OF A DISSOCIATIVE PLEASE EXPERIMENT WITH MUCH SMALLER DOSES FIRST*
1. Saturday morning. Dose: 110mg, measured carefully on scales. Timings are approximate.
00:00-01:00 Took about an hour to come up. Around the hour mark I started to have the familiar dissociative 'buzz' and wandered around the house switching off all electrical devices (much to my long-suffering partner's annoyance). Was full of energy and love/compassion, behaved in a generally silly fashion and had a romp about with partner, nothing sexual, just goofing about.
01:00-02:00 From hour one to two the effects increased - lots of crashing, deep thoughts and positive insights into things (time will tell if they were insightful or just mad ramblings). It became almost overwhelming at times, I'd definitely recommend that you stay indoors the first time you do this, with someone around just in case. I put a lot of things in order and had some excellent euphoric insight into an upcoming piece of work. Heartrate and energy levels definitely increased.
02:00 It seemed to peak around the two hour mark, feeling somewhat like a 'big drop' ride in an amusement park, one minute you're OK, sitting at the top of the slide and the next - bang - you're emploding. Lovely for me, but could be unnerving for others. Dosage will play a big part in this too I'd imagine.
02:30-03:30 The effects subsided, leaving me energised and warm, empathic. Around the 3.5 hour mark I was in the baseline area, functioning OK, went to the shops and could converse with strangers with no problems. Still very energised, made a delicious evening meal but found it hard to sit and watch TV as there was lots of residual energy. Around the 5 hour mark my energy levels dropped and I found myself quite flat and tired for about an hour, but this soon passed.
2. Saturday night. Dose: 110mg, measured carefully on scales. Timings are approximate.
I like to take a risk so decided to drop another dose that same day and go out on the town with friends. I'd explained to them what I was doing and they were going to keep an eye out for me. **PLEASE NOTE: THIS WAS A BIT IDIOTIC. If you're going to do something daft as this make sure you've got good mates with you**
00:00-02:30 Took a lot longer to come on this time. Possibly to do with the fact that I'd dosed earlier that day, but around the 1 hour mark I started to have some gentle tinglings, these grew gradually for an hour or so. I was mildly intoxicated, quite amusing and a bit energised and silly but nothing too notable. In retrospect I probably could have dosed up to 130mg+ but that could have gone nasty. As a side note, I have a physical condition that leaves me in near constant pain and I'm happy to add that Diphenidine has analgesic properties.
02:30-03:30 I had about an hour of disintegration, crazed/jumbled thoughts. Could walk around OK but focus was hard as everything kept breaking up into molecules. I still managed to play a round of pool in this state, however couldn't distinguish between spots and stripes

Despite moments of joy it certainly missed the sparkle and wonder of the arylcyclohexamines and at times, even in the middle of the chaos state, I found myself a bit bored and uninterested in the process. Perhaps due to my having taken it that morning, who knows...?
03:30-04:30 The disintegration lasted longer than it had earlier in the day, and I was still dipping in and out of it up to four and a half hours later, having been picked up and taken home by my partner. I then stayed up and energetic for many hours to come, heart rate very accelerated. I also found myself quite low in mood during this time, quite self-critical and negative about my behaviour during the night (although this is nothing new, it's not something I experienced while on arylcyclohexamines).
To counter this negativity and also to try to slow myself down with a view to sleeping I dropped a couple of benzos (10mg diazepam and 2mg Etizolam if I remember correctly). This then lead to a beautiful couple of hours in which I was full of love and empathy, for myself and for the world, while floating in a state that I can only describe as feeling like Kubrick's 2001. This was an amazing couple of hours, and I will certainly look at adding benzos towards the end of my next trip with Diphenidine.
Although on its own this drug has merits, I think what will be very interesting is if some way can be found of adding some 'zing' to the Diphenidine to give it some more warmth and glow. Its interaction with benzodiazepines was fascinating, and I will certainly be taking these again towards the end of my next trip.
The next time I take Diphenidine I will test out some sort of empathogen/entactogen at the start, for example MDAI, to see how the two drugs interact.
Happy emplosions to all!