"i have a couple damaged discs in my back and the pain became severe after 3-4 years of suffering.  i was instructed to take 300mg per day to start.  i don&#039;t like medicines and i decided to take the minimum i possibly could.  i have been on it for 6 months now and my pain is all but gone.  however, i never went beyond 200mg.  i think i am extremely fortunate.  i have my life back.  i had chronic headaches, previous to the medication.  migraines came on about 2-4 times per month......that&#039;s all gone now.  i might take ibuprofen or aspirin once a month....and it used to be every day.  a couple of negatives for me would be:  sleep pattern is still off and even though i am only taking 200mg per day, i really feel it."