Contact us

Blueprint Medicines

45 Sidney Street
Cambridge, MA 02139

Phone: (617) 374-7580


Genentech, Inc.

1 DNA Way
South San Francisco, CA 94080

Phone: (650) 225-1000


You are encouraged to report side effects of prescription drugs to the FDA. You may also report side effects to Genentech at 1-888-835-2555.

Visit or call (800) FDA-1088/(800) 332-1088.