Contact Us
Our South San Francisco campus, the birthplace of biotechnology.
For Questions About Our Medicines
- 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 - Report a Product Complaint
Phone: (800) 334-0290
Hours: Monday-Friday, 5:30 am - 4 pm PST - Medical Communications
Phone: (800) 821-8590
Hours: Monday - Friday, 5:30am - 4pm PST - Clinical Trial Information
Phone: (888) 662-6728
Hours: Monday - Friday, 6am - 3pm PST - Compassionate Use Information
Phone: (844) 287-3783 (CU-REQUEST)
Hours: Monday - Friday, 6am - 3pm PST
