"Dextromethorphan, an over-the-counter ingredient found in many cough syrups, may help fibromyalgia patients quiet over-reacting nerves that amplify ordinary touches into agony. A University of Florida study documents, for the first time, that dextromethorphan temporarily reduces the intensity of fibromyalgia "wind-up" — a snowballing pain response to minor, repetitive physical contact."

Source - News 8 Austin

"I think its one piece of the mosaic. We currently have no single therapy in chronic pain that has a big effect. So what this really means for chronic pain patients is that they need to use a whole host of different interventions to decrease the pain they have. And in this, dextromethorphan may have a role in the future," Staud said.

Yeah… whatever… let's load up the fibromyalgia patients with every different kind of medication known to man. 

I am finding that less medication, better eating, and some moderate exercise (walking around the mall or something) is a much better answer.  The edge of my fibro myalgia is less severe than it ever has been.  The last thing I want to deal with is the side effects from more medication.