Call Customer Service Monday through Friday, 9 am through 8pm EST at (800) 551-2231 for assistance, or find what you need here for ordering, returns and product issues.
We will be closed on Thursday, November 27th and Friday, November 28th in observance of Thanksgiving.
Due to supply chain challenges, including weather delays and other unexpected events, packages may experience delays. If you have depleted inventory or urgent patient needs, please consider placing orders ahead of the holiday cutoff deadline to ensure delivery.
Updated on November 12, 2025
We are currently experiencing technical difficulties, which may result in delays in the processing of orders, return shipments, and online requests. If you require assistance or have any urgent concerns, please contact Genentech Customer Service at 800-551-2231. We appreciate your patience and understanding as we work to resolve this issue.
As of November 12, 2025, the initial, widespread disruptions to the UPS network immediately following the early November 2025 plane crash have largely subsided, but some delays may still occur.
During hurricane season deliveries may be affected due to severe weather including storms, tornados, and hurricanes sweeping through the U.S. We will contact you directly if your delivery is impacted.
For product-specific quality questions:
For Tarceva
Astellas Oncology
Quality Department
(800) 327-6449
Select option 2, then select the prompt for Adverse Event and Product Concerns.
All other Genentech products
Genentech's Quality Department
(800) 334-0290
Genentech Medical Communications:
(800) 821-8590
For patients, caregivers and healthcare providers:
Patient Access
We believe every person should get the Genentech medicine they need, and we offer programs to help make this happen.
Learn More
Patient Resource Center
Our patient resource center is dedicated to getting patients and caregivers to the right resources.
Call us at (877) 436-3683 or (877) GENENTECH
Monday – Friday, 6am-5pm PT
For general inquiries, please contact Legacy Pharma Inc at 1-800-727-7151.
For product returns purchased from Legacy Pharma Inc: Please contact Legacy Customer Service at [email protected] or 1-866-930-0188.
For product quality concerns, adverse events, medical inquiries, or counterfeit claims: Starting November 3, 2025, please contact Legacy Pharma Inc at [email protected] or 1-800-727-7151.