Need support?
Connect live with Daiichi Sankyo AccessCentral4U
1-866-4-DSI-NOW (1-866-437-4669)
Mon – Fri, 8:00AM – 6:00PM ET, excluding holidays
This site is intended for US residents 18 years of age or older.
Medication-specific coding, coverage, and affordability information
Select a product to take you to the appropriate product website.
Please see Full Prescribing Information, including WARNINGS AND PRECAUTIONS, and Medication Guide for DATROWAY.
Please see Full Prescribing Information, including Boxed WARNINGS, and Medication Guide for ENHERTU.
Please see Full Prescribing Information, including Boxed WARNINGS, and Medication Guide for VANFLYTA.
Offering support 4U along the way
Daiichi Sankyo AccessCentral4U is here to help you.
Learn how we can help
Lean how we can help you navigate your patient journey.
View support resources
Find helpful resources made for patients.
Read frequently asked questions
See frequently asked questions about our support services.
Need support?
Connect live with Daiichi Sankyo AccessCentral4U
1-866-4-DSI-NOW (1-866-437-4669)
Mon – Fri, 8:00AM – 6:00PM ET, excluding holidays
Daiichi Sankyo is committed to complying with all applicable laws and regulations. When communicating with Daiichi Sankyo via email, please do not include any identifiable patient information, such as patient names, personal information, medical information, or any other patient identifying information.
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DSI Access Central is becoming
During this time, you may see both program names in use.
Daiichi Sankyo remains dedicated to helping patients find financial assistance and resources to receive their medications with confidence. AccessCentral4U is here to provide support and information to help.