Exhibit 23.1

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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We have issued our report dated August 25, 2022, with respect to the consolidated financial statements included in the Annual Report of Lannett Company, Inc. and Subsidiaries on Form 10-K for the fiscal year ended June 30, 2022. We consent to the incorporation by reference of said report in the Registration Statements of Lannett Company, Inc. and Subsidiaries on Forms S-3 (File No. 333-235640 and File No. 333-255866) and on Forms S-8 (File No. 333-103236, File No. 333-147410, File No. 333-172304, File No. 333-193509, File No. 333-103235, File No. 333-230461, File No. 333-253361 and File No. 333-262534).

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