I got hold of some pregabalin a couple of years back off a guy I used to get morphine from - this was during my first attempt at kicking H, which back then I was just snorting/smoking only a half teenth over a couple of days... christ, I wish I had stuck that one out. The idea was to switch from H to morphine and taper, but I just ended up taking all the morphine trying to get high and ended up a square one.
After a couple of sweaty days, rolling about the bed kicking the covers off from time to time, I cracked and went into my stash and swallowed a couple of Lyrica. I was trying to come off everything... booze, benzos (although I had no habit but was definitely abusing them), opiates, I even stopped smoking; so, the only thing I thought might take then edge off was Lyrica without feeling like I wasn't backtracking as I hadn't taken them before.
Anyway... all residue WDs were gone, I felt floaty, there was an almost slight psychedelic feel to them which I liked. I was living back at the folks at the time due to a personal issue (which was one of the reasons why I turned to H in the first place). My mum who knew what was going on - to a certain extent, she didn't know the full picture of my drug abuse, but knew I was getting clean from 'drugs', was like 'you seem much better son!' - I even ate something, was chatty, it was like the WDs and finished and it stayed that way. I had taken a few days off work to kick, this was the Friday and I was back to work on the Monday.
So... they definitely helped with mild opiate WDs towards the end. However... a few weeks later I was 'dabbling' again, and here we are 4 years later.
That 'kick' was more like a tap on the shoulder... the one to come is going to be more like a kick to the balls with a a pair of steel toe capped boots.