Given the current situation, we understand that people may experience worry and even fear about how their disease and treatment may impact their personal risk. Sanofi Genzyme is committed to patient safety and to transparent communication. We are taking COVID-19 seriously, and we are committed to updating the communities we serve with relevant information related to our medicines to help inform health decisions.

As COVID-19 has emerged only recently, there are no available data regarding the impact of the virus on our current therapies. At this time, if you have general questions about our therapies, you should consult the current U.S Prescribing Information (USPI).

Each patient’s situation is unique, and patients and their healthcare providers are in the best position to make decisions regarding their care. In addition to local public health authority guidance, and local guidance from medical or patient associations, more information about COVID-19 can be found on the Centers for Disease Control’s (CDC) website or the World Health Organization’s (WHO) website.


LEMTRADA is a prescription medicine used to treat relapsing forms of multiple sclerosis (MS), to include relapsing-remitting disease and active secondary progressive disease, in adults. Since treatment with LEMTRADA can increase your risk of getting certain conditions and diseases, LEMTRADA is generally prescribed for people who have tried 2 or more MS medicines that have not worked well enough. LEMTRADA is not recommended for use in patients with clinically isolated syndrome (CIS). It is not known if LEMTRADA is safe and effective for use in children under 17 years of age.


Helpful Resources

Whether you're considering LEMTRADA or starting LEMTRADA, your healthcare team and your MS One to One® Nurse are great choices for information and advice. Here are some other useful resources for learning more about LEMTRADA and our support program. Download an informative brochure, attend a speaker event in your area, or contact an MS organization.

Find a LEMTRADA-Certified Prescriber or Healthcare Facility

Search for prescribers or healthcare facilities that are certified by the LEMTRADA REMS Program to prescribe and administer LEMTRADA.

Find a LEMTRADA prescriber or facility

Downloadable resources

Sign up to explore additional resources you can use if you're considering or starting LEMTRADA.

MS One to One brochure PDF download MS One to One
Doctor discussion guide PDF download for talking with your provider about LEMTRADA for relapsing MS Healthcare Provider
Discussion Guide

Sign up for access to additional resources you can use as you get started on your LEMTRADA treatment journey.

LEMTRADA patient handbook PDF download LEMTRADA
Patient Handbook
LEMTRADA conversation guide PDF download Conversation
LEMTRADA co-pay brochure PDF download Co-Pay

Lemtrada events

Find an Event
Learn more about LEMTRADA at free events.

MS organizations

National Multiple Sclerosis Society
A 50-state US network that helps people with the challenges of MS.

American Academy of Neurology (AAN)
Dedicated to helping people understand neurology and the available treatments for neurological disorders, including MS.

Can Do Multiple Sclerosis
Lifestyle empowerment programs for people with MS.

Provides online support, chat, and message boards to more than 65,000 people worldwide living with MS.

Multiple Sclerosis Association of America (MSAA)
A national organization dedicated to improving the quality of life for everyone affected by MS.

Multiple Sclerosis Foundation (MSF)
MSF offers a wide range of free services, including national toll‑free support, home care, support groups, assistive technology, and more.

Caregiver Action Network
Educates, supports, and empowers people who take care of loved ones who have chronic illnesses or disabilities.

A free social network for those living with multiple sclerosis. Open to people diagnosed with MS, their spouses, and parents of children with MS. Over 50,000 members and available in 8 countries.