Clinical screening for narcolepsy/cataplexy in patients with fibromyalgia.

We report two cases of fibromyalgia occurring during the course of a long-standing narcolepsy/cataplexy. This association is probably not fortuitous and we propose an easy clinical procedure to search for narcolepsy/cataplexy in these patients. Narcolepsy/cataplexy is a treatable condition requiring drugs that in turn may improve in the long-term symptoms of fibromyalgia.