Term Sheet for Supply Agreement, dated as of October 30, 2017, by and between Lantheus Medical Imaging, Inc. and Cardinal Health 414, LLC

This Term Sheet addresses only certain of the principal terms that would be included in a Definitive Agreement and does not describe all of the material terms and conditions that would be included in a Definitive Agreement. This Term Sheet constitutes a binding agreement among the parties with respect to the terms set forth herein.

As soon as practicable, each party will reasonably and in good faith negotiate and execute a definitive supply agreement incorporating the terms and conditions set forth in this Term Sheet and such other material terms and conditions as may be mutually agreed or otherwise incorporated in the manner contemplated by the next paragraph (a “Definitive Agreement”).

If the parties are unable, for any reason, to complete negotiation and execution of a Definitive Agreement that supersedes this Term Sheet on or before ****, then at that time this Term Sheet will be (a) deemed to be a reinstatement of, and amendment to relevant and applicable terms of, (i) the Amended and Restated Supply Agreement (Thallium and Generators) by and between Lantheus Medical Imaging, Inc. and Cardinal Health 414, LLC, dated October 1, 2004, as amended by Amendment No. 1 thereto, dated as of December

29, 2009, Amendment No. 2 thereto, effective as of December 27, 2012, and as further amended by the provisions of the Term Sheet for Supply Agreement, effective as of November 19, 2015 (the “Previous Term Sheet”) (collectively, as amended, but the “Generator Agreement”), and (ii) the Amended and Restated Cardiolite® License and Supply Agreement by and between Lantheus Medical Imaging, Inc. and Cardinal Health 414, LLC, entered into as of January 1, 2009 and effective as of January 1, 2004, as amended by Amendment No. 1 thereto, effective as of February 9, 2012, Amendment No. 2 thereto, effective as of December 27, 2012, and as further amended by the Previous Term Sheet (collectively, as amended, , the “Cardiolite® Agreement”), as the case may be, (b) construed and interpreted along with the Generator Agreement and the Cardiolite® Agreement and (c) deemed incorporated, as applicable, into the Generator Agreement and the Cardiolite® Agreement; provided that for the avoidance of doubt, Sections 5 through 12, Section 14 and the Pricing Schedule of the Previous Term Sheet shall be deemed superseded, and have no force or effect, for all purposes from and after January 1, 2018. Any conflicts between this Term Sheet and the Generator Agreement and the Cardiolite® Agreement will be resolved in favor of this Term Sheet.

Each party agrees to maintain in confidence and not disclose, disseminate or otherwise make available to any unaffiliated third party the existence of this Term Sheet and/or the terms and conditions offered under this Term Sheet, except as may otherwise be required by applicable law, including, without limitation, the U.S. federal securities laws.

This Term Sheet and all claims, controversies and causes of action arising under or relating to this Term Sheet are subject to the laws of the state of New York, without regard to its conflicts of laws principles.

This Term Sheet may be executed in one or more counterparts, each of which will be deemed to be an original and such counterparts will together constitute on and the same instrument. Signatures to this Term Sheet may be delivered by facsimile, by electronic mail (e.g., a “.pdf” file) or by any other electronic means that is intended to preserve the original appearance of the document, and such delivery will have the same effect as the delivery of the paper document bearing the actual, hand-written signatures.