M-I-03-19: Delvo-X-Press Beta-lactam Residue Test Kit

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5100 Paint Branch Parkway
College Park, MD 20740-3835


December 19, 2003

TO: All Regional Food and Drug Directors
Attn: Regional Milk Specialists

FROM: Milk Safety Branch (HFS-626)

SUBJECT: Delvo-X-Press Beta-lactam Residue Test Kit

Below is the text of a letter received by FDA from James T. Whitt, Business Development Manager, Dairy Ingredients, DSM Food Specialties USA, Inc.

"I am writing to advise you that DSM Food Specialties will discontinue its Delvo-X-Press Beta-lactam residue test kit. Manufacturing for global markets will end effective January 1, 2004. DSM Food Specialties in the U.S. has a limited inventory of Delvo-X-Press test kits with expiration dates of December 20, 2003. We will not be restocking this product for the US and we are advising our customers to switch to alternative tests."

Based on the information provided in this letter, the next update of M-a-85 will not contain the Delvo-X-Press Beta-lactam Test Kit as an acceptable NCIMS test kit.

Copies of this memorandum are enclosed for distribution to Regional Milk Specialists, State Milk Regulatory Agencies, State Milk Laboratory Evaluation Officers and State Milk Sanitation Rating Officers in your region. This memorandum should be widely distributed to representatives of the dairy industry and other interested parties and also will be available on the FDA Web site at at a later date.

If you would like an electronic version of this document prior to it being available on the CFSAN Web Site, please e-mail your request to


CAPT Robert F. Hennes, RS, MPH, Chief
Milk Safety Branch

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