Contact Us

Please refer to the toll-free phone numbers listed below if you have questions about our products.

Eisai Inc. (Headquarters)
100 Tice Blvd.
Woodcliff Lake, NJ 07677
Telephone: 201-692-1100
Fax: 201-692-1804

Eisai Raleigh
4130 ParkLake Avenue
Suite 500
Raleigh, North Carolina 27612
Telephone: 919-941-6920
Fax: 919-941-6931

Eisai Exton
210 Welsh Pool Road
Exton, PA 19341
United States
Phone: 610-423-6100
Fax: 610-423-6199


Eisai Global Headquarters

Eisai Co., Ltd.
Public Relations Department
4-6-10 Koishikawa, Bunkyo-ku
Tokyo 112-8088 Japan
Main Telephone: 81-3-3817-5120


Our Products

Please contact Eisai Medical Information for any questions about our products at 888-274-2378 (8:30 AM - 5:00 PM, Eastern Time, Monday - Friday).


Patient Assistance Programs (PAPs)

To learn more about Eisai's Patient Assistance Programs, please click here.