Not Listed / Othe
"I tried the 25mg dosage for atypical facial pain after being unable to tolerate several other anticonvulsants.  No side effects and it calmed the pain - but the relief only lasted 6 hours at the most per day then the pain returned with increased intensity until the next dose the following day.  One week of that was enough.  The Extended Release (XR) did not work for me but changing to topiramate twice a day has, thus far,  been a significant improvement!"