"i started the once daily gabapentin last week and am now on 1200 mg/day.  i was taking it for back pain and later realized it is also used for bipolar and anxiety problems, which i also suffer from.  i don&#039;t feel much of a difference mentally, but i feel drugged during the day.  it feels like i took a sleeping pill and am walking around doing my work trying to keep my eyes open.  i am not sure whether this is connected to the drug or it just happened for another reason.  in fact, this drugged feeling happened to me twice before i took the drug, but now it happens everyday.  not sure what&#039;s going on."