Contact Us

Report an Adverse Event

Phone: (888) 835-2555
Hours: 24 hrs/day, 7 days/week

Mail: Genentech US Drug Safety
1 DNA Way Mailstop 258A
South San Francisco, CA 94080

Fax: (650) 225-4630

Support For Product Questions, Issues, And Returns

Phone: (800) 551-2231
Hours: Monday - Friday, 6am - 5pm PT
Additional information here.

Report a Product Complaint

Phone: (800) 334-0290
Hours: Monday - Friday, 5am - 5pm PT

Medical Communications

Phone: (800) 821-8590
Chat with a nurse: Click here to chat
Hours: Monday - Friday, 5am - 5pm PT

Clinical Trial Information

Phone: (888) 662-6728
Hours: Monday - Friday, 5am - 5pm PT

Compassionate Use Information

Phone: (844) 287-3783 (CU-REQUEST)
Hours: Monday - Friday, 5am - 5pm PT