I have been given gabapentin 300 mg/daily at night for pain most likely caused by arthritis. The prescribing physician also said it would work as a sleep aid which has also been an issue for me. I am a 70 yr. old male and am also taking benedryl as a sleep aid, ropinerol for restless leg syndrome, and Naproxin, also for pain. Though my physician was given a list of these other drugs, I was concerned after limited reading of some side effects that the combination might have negative effects over the long term. I have been on thegabapentin for 1 wk. and, so far, all symtoms seem to have improved. Do I have any reason for concern?