Exhibit 23.3
 | Kost Forer Gabbay & Kasierer 144A Derech Menachem Begin | Tel.: +972-3-6232525 Fax: +972-3-5622555 ey.com |
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” and to the use of our report dated November 7, 2024 (which contains an explanatory paragraph describing conditions that raise substantial doubt about the Company’s ability to continue as a going concern as described in Note 1B to the financial statements), with respect to the financial statements of Kadimastem Ltd. incorporated by reference in this registration statement on Form F-3 and related Prospectus of NLS Pharmaceutics Ltd. for the registration of its common shares.
/s/ Kost Forer Gabbay & Kasierer
Kost Forer Gabbay & Kasierer
A member firm of EY Global
Tel Aviv, Israel
February 10, 2025