Inclusion Criteria:

You may be eligible for this study if you:

• Are between 18 and 65 years of age.
• Are a resident of Long Island or greater NY metropolitan area.
• Are fluent in English.
• Have a history of Lyme Disease.
• Have completed antibiotic treatment for Lyme Disease 6 or more months before starting the study.
• Have severe fatigue.
• Are not pregnant or planning to be pregnant.

Exclusion Criteria:

You will not be eligible for this study if you:

• Have or have had major medical, neurologic, or psychiatric disorder.
• Have had prior chronic pain, fatigue, or recurrent severe headaches before the onset of Lyme Disease.
• Have had Fibromyalgia Syndrome.
• Have a history of sleep apnea, narcolepsy, or other serious sleep disorder.
• Have a learning disability.
• Have had head trauma requiring hospitalization.
• Have symptomatic gallbladder disease.
• Are anemic.
• Abuse alcohol or illicit drugs.
• Have been treated with another antimicrobial agent for Lyme Disease within 6 months of study.
• Need to be receiving systemic steroid therapy during drug administration and follow-up.
• Have used benzodiazepines within 1 month of study entry.
• Are allergic to Beta lactams (a class of antibiotics).