I've used high doses of lyrica for a week long binge on adderall after trying benzo, alcohol, pot, and suboxone and it is the only thing that worked successfully. it worked so well to the point that it brought me completely down and I actually never felt like I was ever on adderall in the first place!
I used around a gram or so of the lyrica and prior to trying it, I was suffering immensely from both the adderall crash and severe insomnia psychosis.