I have Trigeminal Neuralgia and I have had it for 8 years and through those years I have tried many drugs for seizures which did not work. I have had MRI s and nothing has really developed that I can say it has because never saw either scary. Had the Gamma Knife procedure done July 2016, that didn t work. Had a drug reaction , broke out in a full body rash, got meds, lost 20lbs, could not eat because the pain was so bad I had to eat out of one side of my mouth from a cup folded in half to make a funnel to pour in the liquid drink I drank this way for 3meals a day for 30 days. .
Hi, There are many medications that are not antiseizure medications which can be useful against TN such as Tricyclics (nortriptyline, amitriptyline, desipramine, duloxetine, migraine), muscle relaxants (Baclofen, Tizanidine), and calcium channel blockers (Verapamil, Diltiazem, Expletive).  TN is a very challenging problem to resolve.  I'm curious to know what they actually gamma knifed and hope that doesn't result in long-term chronic central pain syn Chat Doctor.  No matter where in the brain they ablate nor for what reason. Hope I have answered your query. Let me know if I can assist you further.