Open label study to evaluate effect, safety and tolerability of Betaferon standard dose of 250µg in patients of Chinese origin with multiple sclerosis

Any disease other than Multiple Sclerosis (MS) that could better explain the patients signs and symptoms - HIV (human immunodeficiency virus) infections - Hepatitis A - Syphilis - immunodeficiency - rheumatic disease or Sjogren syndrome - heart disease - severe depression - pregnancy or lactation - conditions interfering with Magnetic Resonance Imaging (MRI) - Gadolinium DTPA (Gadovist, contrast agent) allergy - allergy against human proteins, paracetamol, acetaminophen and ibuprofen intolerance - participation in other trial