Low Dose Naltrexone (LDN) has been reported anecdotally to reduce the symptoms of
Fibromyalgia, a Chronic Multisystem Illness. The drug may work by regulating natural
pain-reducing systems. In this study, we will administer both LDN and placebo to a small
group of individuals with Fibromyalgia and Gulf War Syndrome, both Chronic Multisymptom
Illnesses, to assess the drug's efficacy in treating the condition.