EX-23 2 a2019msdpr_exhibit23-conse.htm EXHIBIT 23: CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit

Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-173025 and 333-162884) of Merck & Co., Inc. of our report dated June 20, 2019, relating to the financial statements and supplemental schedule of the MSD Puerto Rico Savings & Security Plan, which appears in this Form 11-K.

/s/ PricewaterhouseCoopers LLP

June 20, 2019

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