Exhibit 23.2
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement on Form S-4 of our
reports dated February 27, 2009, relating to (i) the consolidated financial statements and
financial statement schedule of Schering-Plough Corporation and subsidiaries (which report
expressed an unqualified opinion and included an explanatory paragraph regarding the
Schering-Plough Corporation and subsidiaries adoption of Statement of Financial Accounting
Standards No. 158, Employers Accounting for Defined Benefit Pension and Other Postretirement
Plans, and Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty
in Income Taxes) and (ii) the effectiveness of Schering-Plough Corporation and subsidiaries
internal control over financial reporting appearing in the Annual Report on Form 10-K of
Schering-Plough Corporation and subsidiaries for the year ended December 31, 2008, and to the
reference to us under the heading Experts in the Joint Proxy Statement/Prospectus, which is part
of this Registration Statement.
/s/ DELOITTE & TOUCHE LLP
Parsippany, New Jersey
May 20, 2009
Parsippany, New Jersey
May 20, 2009