Adverse Event or Product Complaint Inquires

To report an adverse event or product complaint please call immediately at:

Tel: +1 (888) 209-9326

Note: If telephone line is busy, please try your call throughout the day or send an email to

Medical Information Inquiries

For more information about Karyopharm’s products or clinical trials, please contact the Medical Information department at:

Tel: +1 (888) 209-9326

For healthcare providers wishing to speak to a Karyopharm Medical Science Liaison, please click here.

Corporate Offices


Corporate Headquarters
85 Wells Avenue, Suite 210
Newton, Massachusetts 02459-3298

Main Phone Number (USA)
+1 (617) 658-0600



Karyopharm Israel Ltd.
4 Ariel Sharon Street
Givatayim, Israel