I had PLIF and diskectomey 12-11-08. Recently had alot more pain and a MRI and xrays. Ortho was out of town and personal physican started me on Gabapentin 300 MG every 8 hours. I am on Oxycodone 30mg every 4 hours for break through and Duragesic 50 mg patches every 2 days. I started on the Gabapentin on Friday and it made me extremely sleepy initially. Then as the weekend progressed I got kind of unsteady. Not dizzy, just unsteady and still sleepy. Is this a side effect that will go away in time? I just cant take this extreme sleepiness and function. I cant drive as it makes it unsafe. Anyone had this happen, and did it susbside?