Eisai US Medical Information supports the therapeutic areas of oncology and neurology. This site has been developed to assist in Medical Information needs.

If you are unable to find the information you require, please submit an inquiry using the forms available within the website or call 1-888-274-2378 (Monday through Friday 8:30 AM – 5:00 PM EST, excluding holidays).

For inquiries related to lecanemab (Monday through Friday 8:30 AM – 8:00 PM EST, excluding holidays).