I am prescribed Lyrica, and I find if you take a dose of 300mg with an opiate, that it increases the opiate high by a good 50% anyway, at least for me.
It is also a really unique drug, I find it creates a 'floatiness relaxing' feeling at higher doses.
I am prescribed 150mg capsules, and am supposed to take 150x3/day. It is a VERY expensive drug though. I think that is why a lot of people who don't have coverage are still on Neruontin (Gabapentin). Although I have never tried Nerountin, I feel no need, as Lyrica is awesome. I don't have insurance and I am in Canada and it is expensive as hell for me, but I don't care, I'll still pay for it, but I hope to find an insurance company that covers it soon.