Q:How do I report Adverse Events or Product Quality Complaint Reports?

A: Adverse Events and Product Quality Complaint Reports must be reported through the following channels.

AZEDRA®, DEFINITY®/LUMINITY®, Xenon-133, Gallium-67, Thallium-201, NEUROLITE®, TechneLite®,Cardiolite®, Fludeoxyglucose F18 Injection, developmental products:

United States

Phone: 1-800-343-7851
Press Option 2 for Adverse Events
Press Option 2 for Product Quality Complaints
Fax: 978-436-7296

Outside US

Phone: 978-667-9531
Press Option 2 for Adverse Events
Press Option 2 for Product Quality Complaints
Fax: 978-436-7296


1095 (clinical development):


PyL (clinical development):



Q: Who do I call with technical questions?

A: Technical inquires are triaged through Medical Information (contact info below). For adverse events and product quality complaints, please use contact information above.

Medical Information


Lantheus Medical Imaging
331 Treble Cove Rd. Bldg. 600
N. Billerica, MA 01862

Phone: 1-800-343-7851 (Outside US: 978-667-9531)
Press Option 3, followed by  Option 1, for Medical Information
Fax: 1-978-671-8736
Hours: 8:30 a.m. to 5:00 p.m. Eastern Time, Monday – Friday


Q: How do I order products online?

A: Select products are available to order online at
If you do not have an account, you can set one up with a Lantheus Customer Service representative at (800) 299-3431.

Q: What is the standard shipment method for radioactive products?

A: Please call Customer Service at 1-800-299-3431 for specific logistics on radioactive products

Q: What is the cut-off time for cancelling/changing an order?

A: 3:00 pm Eastern Time except for Generators.

Q: Can you customize my shipment to come directly to my department?

A: Yes. Special shipping instructions may be requested on all orders.

Q: How do I get a Drug Sample Card?

A: A Drug Sample Card can be requested through your Sales Representative.

Q: How do I return a product in the U.S.?

A: Call your Customer Service Representative at 1-800-299-3431. You will receive a return authorization number that MUST accompany all returns. Please have the following information available when you call:

  • Customer Number
  • Name of Institution
  • Contact name & telephone number
  • Lot & Serial number
  • Reason for return
Q: What holidays are you closed?

A: New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day

Q: What is your FAX number?

A: Fax numbers can be found on the contact us page.

Q: What is your address?

A: Addresses for the US and International Locations can be found on the contact us page.