Male or female \>/= 18 years old

Outpatient with a confirmed diagnosis of Recurrent-Remittent multiple sclerosis or patients at high risk of developing multiple sclerosis after a first demyelinating clinical event

Patient who initiated Betaferon as described by SmPC less than 2 months ago. The decision of physician is clearly separated from the decision to include the patient in the study

Treatment naïve patients before the initiation of Betaferon

OR Patients having interrupted Betaferon for more than 6 months before to start again

OR Patients receiving a disease modifying drug (DMD) other than Betaferon

Patient with EDSS score \< 4

Patients approved and signed an inform consent and approved the collect of their data

Prospective, Multicenter Non Interventional Study to Evaluate Adherence to Betaferon Over a 2 Years Period

What this study is about