think potentiate might actually be the correct term here from a pharmacology perspective - but I'm a layman so happy to be corrected, but think it's just a general term that 1 drug enhances the effect of another.
Empty stomach is key for pregab otherwise the onset is just too bloody long. I generally go with 300mg taken 1st thing in the morning (like as soon as I wake up), snorting works faster but I find the high is a bit sharper and more synthetic (I mainly tend to use it if my tolerance is too high and find a need a bigger kick, I take pregab once per week for 3 weeks, 1 week off, then restart), or if I want to push the pregabs own high much more, at 900mg you get some visuals at times.
I then take diazapam sublingually because I love the taste! duration for both of these is similarish so works pretty well together - I take this combo as it helps calm down the pregabs tendency to give you super focus on activities if you'd just prefer to chill out with it. but if you have shit to get done pregab's a great thing on it's own.
it's a great and fun combo to use as a base, I will often through the day add in additional things depending on my mood using the half life of other drugs as a way to manage moving from 1 type of high to another. Weed (almost always), coke then later methedrone the later soma to chill out with, some ket is nice too (I'm dosing small here and am pretty experienced with each on their own and in combos with pregab+diazapam, titrate up and know your shit before fucking about please), with the exception of weed I don't mix these together and let the effect wear off before I swap to something else. Doing the same thing but without diazapam is different and fun as well, but I like how diazapam smooths things out and stops the hyperactivity phase of pregab.
Going from memory here but think this is correct - 1 other call out, your body can only absorb a max amount of pregab (900mg) after which you just piss the rest out. I've done 900mg after a tolerance break a few times, it's fun, but I generally prefer lower dosing of things given I'm a combo guy, I'm chasing a specific overall effect and using a cocktail to achieve it.