QuickLinks -- Click here to rapidly navigate through this document
CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED
BY SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
Each of the undersigned hereby certifies that to his knowledge the Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2012 of Lantheus Medical Imaging, Inc. (the "Company") filed with the Securities and Exchange Commission on the date hereof fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in such report fairly presents, in all material respects, the financial condition and results of operations of the Company.
Dated: May 15, 2012 | /s/ DONALD R. KIEPERT | |||
| Name: | Donald R. Kiepert | |||
| Title: | President and Chief Executive Officer | |||
Dated: May 15, 2012 | /s/ JEFFREY E. YOUNG | |||
| Name: | Jeffrey E. Young | |||
| Title: | Chief Financial Officer | |||
A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.
CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED BY SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002