peripheral neuropathy
"Started gabapentin at 300 mg daily. Moving up an extra 300 mg every 3 days.  Was extremely sleepy for over two weeks with little or no pain relief...until I started taking 2400 mgs, 600 mgs three times daily. At this dosage my pain level dropped significantly and the drowsiness side effect stopped. The pain had been so intense I'd been feeling suicidal...and even opiates were not controlling it.  Now, with the 2400 mg daily dose of gabapentin my neuropathy pain is very well controlled and life is good again.  I have experienced no side effects since the first few weeks of drowsiness.  Don't let doctors tell you that if 900 mg daily doesn't relieve your pain...that the medicine won't work for you. 1800 mg to 3600 mg is a working dose."