To evaluate the efficacy and safety of pregabalin compared with placebo for the relief of pain associated with fibromyalgia and improvement of function of patients with fibromyalgia

Inclusion Criteria:

• Patients must meet the ACR criteria for fibromyalgia (ie, widespread pain present for at least 3 months, and pain in at least 11 of 18 specific tender point sites.
• Patients must have a score of >40 mm on the Visual Analog Scale

Exclusion Criteria:

• Patients with any widespread inflammatory musculoskeletal disorders, widespread rheumatic diseases other than fibromyalgia, active infections, or untreated endocrine disorders.