Terms of Use

Use of Eisai Corporate Website

Please read the following terms of use carefully prior to using the corporate website (“the Website”) of Eisai Co., Ltd. (“Eisai”). Although Eisai pays extremely close care in deciding on the Website’s content, there can be no guarantees regarding risk related to the content being appropriate and accurate in its entirety or not being infected by viruses. Eisai accepts no liability whatsoever related to losses incurred by either using or not being able to use the Website.


Documents posted / or made available by Eisai Co., Ltd.(Eisai) on the World Wide Web (WWW) may not be copied other than for non-commercial individual reference and thereafter may not be recopied, reproduced , altered or otherwise redistributed.

Eisai will use reasonable efforts to include accurate and up-to-date information on the WWW, but Eisai makes no warranties or representations as to its accuracy. All users agree that all access and use of Eisai's documents on the WWW and the content thereof is at their own risk. Neither Eisai nor any party involved in creating, producing or delivering documents on the WWW shall be liable for any direct, incidental, consequential, indirect or punitive damages arising out of access to, use of or inability to use documents on the WWW, or any errors or omissions in the content thereof.

All product names with the trademark symbol, whether or not appearing in large print, are trademarks of Eisai, its affiliates, related companies or its licensers or joint venture partners. The use or misuse of these trademarks or any other materials, except as permitted herein, is expressly prohibited and may be in violation of copyright law, trademark law, the law of slander and libel, the law of privacy and publicity, and communications regulations and statutes. Further, Eisai enforces its intellectual property rights to the fullest extent of the law.

Use of Trademarks

Trademarks, service marks, trade names, and designs used on the Website are protected by law. Their infringement through unauthorized use is prohibited.

IR Information

Materials and information provided in this website may contain so-called “forward-looking statements.” These statements are based on current expectations, forecasts and assumptions that are subject to risks and uncertainties that could cause actual outcomes and results to differ materially from these statements.

Risks and uncertainties include general industry and market conditions, and general domestic and international economic conditions such as interest rate and currency exchange fluctuations. Risks and uncertainties particularly apply with respect to product-related forward-looking statements. Product risks and uncertainties include, but are not limited to, technological advances and patents attained by competitors; challenges inherent in new product development, including completion of clinical trials; claims and concerns about product safety and efficacy; regulatory agency examination periods and obtaining regulatory approvals; domestic and foreign healthcare reforms; trends toward managed care and healthcare cost containment; and governmental laws and regulations affecting domestic and foreign operations. The Company cannot guarantee the actual outcomes and results for any forward-looking statements.

Furthermore, for products that are approved, there are manufacturing and marketing risks and uncertainties, which include, but are not limited to, inability to build production capacity to meet demand, unavailability of raw materials, and failure to gain market acceptance. The Company disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.

Concerning disclosure, The Company strives for fair disclosure complying with internal Guideline for Disclosure, Policy for IR Standards of Practices, and implementation manual for Control Self-Assessment (CSA), which set the procedures of information disclosure, evaluation criteria and risk management, in line with Fair Disclosure Rules of Financial Instruments and Exchange Acts to avoid selective disclosure to third party in any process of disclosure.

Changes in and Termination of Use

Eisai may add to, change, or terminate the content or use of the Website without advance notice.

About links

The content of third party websites that are linked from this website or third party websites that link to this website, are not within Eisai's control, and we cannot and will not take responsibility for the information or content thereon.

If you would like to add a link to this website, please contact us through the Inquiry Form to obtain prior approval. When linking to our website, we recommend using the top page (https://www.eisai.com/). Use of Eisai logos is prohibited.

Use of Cookies

Cookies and web beacons (hereinafter collectively called, “Cookies”) may be used by this website for the purpose of conducting statistical analysis of website usage and advertisement delivery. Cookies are a means of storing the usage history and other user inputs transmitted and received between the browser and the server on the hard disk of your computer when you visit this website. Cookies used by this website do not collect personally identifiable information. If you do not wish to accept cookies in connection with your use of this website, you may change your browser settings to block the acceptance of cookies.

Applicable Laws

Use of this Website is governed by the laws of Japan. The District Court of Tokyo is the court of jurisdiction and will settle all disputes arising out of or relating to use of the Website.


When printing pages from this website using your browser print function, default print settings allow pages to be printed without top or left navigation bars so that page content fits on an A4 portrait page.