Arm 1: Copaxone plus placebo. Arm 2: Copaxone plus albuterol. At the treatment visits, blood is collected and neurological exams and a brain MRI are performed. A pregnancy test is administered to women of reproductive potential. Neurological exams are performed every 6 months. MRIs are performed at baseline, Year 1, and Year 2. At the end of the study, patients have a complete physical exam, a neurological exam, and a brain MRI.