Just to state a fact, no medicine works to stop fascics in all people. There is no cure for BFS that works for every person. Many have had results with benzo's (xanax, valium, klonopin), anti-seizures/epileptics (tegretol, trileptal, dilantin, neurontin) and many others. Some people have even had good results from magnesium/calcium, B vitamin supplements.
If you take a medicine that doesn't help with your BFS, don't be surprised or worried. It just means that your BFS doesn't respond to that particular medicine or any meds for that matter.
That is the unfortunate truth, sometimes nothing can be done about BFS. I've personally tried benzo's, trileptal, neurontin and nothing helped. I 've come to the realization that the best treatment for this crap is the passage of time and the acceptance that it is what it is, benign fascics. Nothing more, nothing less.
Take care,
Gary