I get 600mg lyrica a day, recently I ran out before I could refill(today I get it) and was able to get a script to neurontin to avoid possible withdrawl and pregabalin is in a different class, gabapentin is lacking the anxiety and calming effects very prominent with lyrica, although food affects lyrica very much, also I take clonazepam and the synergy effect is non existent to me with neurontin. In my experience with gaba/anxiety reducing drug, a common side effect shared by benzo's/pregabalin is dry mouth. Not that this is a great feeling, but shows its working, again non existant @ 4grams gabapentin. Also, not only has lyrica solved my partial seizure/nerve problems, but has made me almost unbelievably social and open. This is my personal experience with these two medications. I see why lyrica is a controlled substance, it has abuse potential, not like nitrazepam, but certainly more useful and a great medication.