I take 300 mg every evening. It helps me sleep and I would never take it before driving. Having experimented multiple times with discontinuing it--I have more anxiety without Gabapentin (even the next day) and do not sleep as long without it. I take 1/2 of a .5 mg Xanax as needed (don't need much if I take Zoloft) and have learned from experience that Xanax dulls my thinking (as teachers, we have to think on our feet sometimes) so I rarely take it prior to working. I have been pretty stable lately so I haven't had a Xanax for a few days. I am trying to avoid Xanax whenever I can because I have read it can damage your brain power. Though I will take Xanax if I have to see certain people or have gotten very little sleep for days and days. Perhaps more Gabapentin and no Xanax would be better? The thing is, I have driven OK with Xanax but have never tried after taking a Gabapentin....