Exhibit 23.1
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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration Statements No. 333-235651 and 333-162702 of GlaxoSmithKline PLC on Form S-8s of our report dated June 8, 2021, relating to the financial statements and supplemental schedule of GSK Puerto Rico 401(k) Plan appearing in this Annual Report on Form 11-K of GSK Puerto Rico 401(k) Plan for the year ended December 31, 2020.
Philadelphia, Pennsylvania
June 8, 2021