SecProbe.io

CORRESP
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 NLS Pharmaceutics Ltd.

 The Circle 6

 8058 Zurich, Switzerland

 September 29, 2025

 VIA EDGAR

 Securities and Exchange Commission

 Division of Corporation Finance

 100 F Street, N.E.

 Washington, DC 20549

 RE:
 NLS Pharmaceutics Ltd. (CIK 0001783036)

 Registration Statement No. 333-290516 on Form F-1 (the "Registration Statement")

 Ladies and Gentlemen:

 NLS Pharmaceutics Ltd. (the
" Registrant ") hereby requests acceleration of the effectiveness of the above-referenced Registration Statement pursuant
to Rule 461 under the Securities Act of 1933, as amended (the " Securities Act "), so that it may become effective on
September 30, 2025, at 4:00 p.m., Eastern Time, or as soon thereafter as is practicable.

 The Registrant understands
that the Securities and Exchange Commission will consider this request for acceleration of the effective date of the Registration Statement
as a confirmation of the fact that the Registrant is aware of its responsibilities under the Securities Act and the Securities Exchange
Act of 1934, as amended, as they relate to the proposed public offering of the securities specified in the Registration Statement.

 Very truly yours,

 NLS PHARMACEUTICS LTD.

 By:
 /s/ Alexander Zwyer

 Alexander Zwyer

 Chief Executive Officer

<DOCUMENT>
<TYPE>TEXT-EXTRACT
<SEQUENCE>2
<FILENAME>filename2.txt
<TEXT>
 September 29, 2025

Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
The Circle 6
8058 Zurich, Switzerland

 Re: NLS Pharmaceutics Ltd.
 Registration Statement on Form F-1
 Filed September 25, 2025
 File No. 333-290516
Dear Alexander Zwyer:

 This is to advise you that we have not reviewed and will not review your
registration
statement.

 Please refer to Rules 460 and 461 regarding requests for acceleration.
We remind you
that the company and its management are responsible for the accuracy and
adequacy of their
disclosures, notwithstanding any review, comments, action or absence of action
by the staff.

 Please contact Alan Campbell at 202-551-4224 with any questions.

 Sincerely,

 Division of
Corporation Finance
 Office of Life
Sciences
cc: Ron Ben-Bassat, Esq.
</TEXT>
</DOCUMENT>

CORRESP
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NLS Pharmaceutics Ltd.

The Circle 6

8058 Zurich, Switzerland

November 25, 2024

VIA EDGAR

Securities and Exchange Commission

Division of Corporation Finance

United States Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: NLS Pharmaceutics Ltd. (CIK: 0001783036)

Registration Statement on Form F-3 (File No. 333-282788)
(the “Registration Statement”)

Request for Acceleration of Effective Date

Dear Sir or Madam:

Pursuant to Rule 461
under the Securities Act of 1933, as amended (the “Securities Act”), NLS Pharmaceutics Ltd. (the “Registrant”)
hereby requests that the effective date of the above-referenced Registration Statement be accelerated so that it will be declared effective
on November 26, 2024 at 4:30 p.m., Eastern Time, or as soon as practicable thereafter.

The Registrant understands
that the Securities and Exchange Commission will consider this request for acceleration of the effective date of the Registration Statement
as a confirmation of the fact that the Registrant is aware of its responsibilities under the Securities Act as they relate to the proposed
public offering of the securities specified in the Registration Statement.

The Registrant respectfully
requests that it be notified of such effectiveness by a telephone call to Ron Ben-Bassat, Esq. of Sullivan & Worcester LLP at (212)
660-5003 and that such effectiveness also be confirmed in writing.

    Very truly yours,

    NLS PHARMACEUTICS LTD.

    By:
    /s/ Nicole Fernandez–McGovern

    Nicole Fernandez–McGovern, Chief Financial Officer

CORRESP
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NLS Pharmaceutics
Ltd.

The Circle 6

8058 Zurich, Switzerland

November 18, 2024

Via EDGAR

Securities and Exchange Commission

Division of Corporation Finance

Office of Life Sciences

100 F Street, NE

Washington, DC 20549

Attention: Lauren Hamill and Joe McCann

    Re:

    NLS Pharmaceutics Ltd.

    Registration Statement on Form F-3

    Filed October 23, 2024

    File No. 333-282788

Dear Ms. Hamill and Mr. McCann:

The purpose of this letter is to respond to the comments
of the staff of the Division of Corporation Finance (the “Staff”) of the U.S. Securities and Exchange Commission as set forth
in your letter of November 1, 2024, regarding the above referenced registration statement on Form F-3. For your convenience, your original
comments appear in bold, followed by our response. We are concurrently filing Amendment No. 1 to Form F-3 (“Amendment No. 1”).

General

    1.
    We note that on July 29, 2024 you entered into a binding term sheet with respect to a merger with Kadimastem Ltd (the “Transaction”), subject to, among other things, entry into a definitive agreement and approval by NLS and Kadimastem stockholders. We also note that your Report on Form 6-K filed on July 30, 2024 indicates that a definitive agreement was expected to be executed in September 2024 with an expected Transaction closing before December 31, 2024. Please tell us, and revise the registration statement to disclose, the current status of the Transaction. Also, please provide us an analysis of whether pro forma financial statements and financial statements of Kadimastem are required. Refer to Rule 11-01 and Rule 3-05 of Regulation S-X.

Response: In response to the Staff’s
comment, we have included an update on the status of the Transaction in Amendment No. 1. In addition, we have incorporated pro forma financial
statements and financial statements of Kadimastem, in compliance with Rule 11-01 and Rule 3-05 of Regulation S-X, as well as provided
appropriate disclosures relating to Kadimastem’s business.

* * *

Lauren Hamill and Joe McCann

Securities and Exchange Commission

November 18, 2024

Page 2

If you have any questions or require additional information,
please call our attorneys, Ron Ben-Bassat at (212) 660-5003 or Howard E. Berkenblit at (617) 338-2979.

Sincerely,

NLS PHARMACEUTICS LTD.

    By:
    /s/ Alexander Zwyer

    Chief Executive Officer

    cc:

    Ron Ben-Bassat

    Howard Berkenblit

November 1, 2024
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
The Circle 6
8058 Zurich, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-3
Filed October 23, 2024
File No. 333-282788
Dear Alexander Zwyer:
            We have conducted a limited review of your registration statement and have the
following comment.
            Please respond to this letter by amending your registration statement and providing
the requested information. If you do not believe a comment applies to your facts and
circumstances or do not believe an amendment is appropriate, please tell us why in your
response.
            After reviewing any amendment to your registration statement and the information
you provide in response to this letter, we may have additional comments.
Registration Statement on Form F-3 filed October 23, 2024
General
1.We note that on July 29, 2024 you entered into a binding term sheet with respect to a
merger with Kadimastem Ltd (the "Transaction"), subject to, among other things,
entry into a definitive agreement and approval by NLS and Kadimastem
stockholders. We also note that your Report on Form 6-K filed on July 30, 2024
indicates that a definitive agreement was expected to be executed in September 2024
with an expected Transaction closing before December 31, 2024. Please tell us, and
revise the registration statement to disclose, the current status of the Transaction.
Also, please provide us an analysis of whether pro forma financial statements and
financial statements of Kadimastem are required. Refer to Rule 11-01 and Rule 3-05
of Regulation S-X.

November 1, 2024
Page 2
            We remind you that the company and its management are responsible for the accuracy
and adequacy of their disclosures, notwithstanding any review, comments, action or absence
of action by the staff.
            Refer to Rules 460 and 461 regarding requests for acceleration. Please allow adequate
time for us to review any amendment prior to the requested effective date of the registration
statement.
            Please contact Lauren Hamill at 303-844-1008 or Joe McCann at 202-551-6262 with
any other questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:Ron Ben-Bassat

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NLS Pharmaceutics Ltd.

The Circle 6

8058 Zurich, Switzerland

June 24, 2024

VIA EDGAR

Securities and Exchange Commission

Division of Corporation Finance

United States Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: NLS Pharmaceutics Ltd. (CIK: 0001783036)

Registration Statement on Form F-1 (File No. 333-
279806) (the “Registration Statement”)

Request for Acceleration of Effective Date

Dear Sir or Madam:

Pursuant to Rule 461 under
the Securities Act of 1933, as amended (the “Securities Act”), NLS Pharmaceutics Ltd. (the “Registrant”) hereby
requests that the effective date of the above-referenced Registration Statement be accelerated so that it will be declared effective on
June 25, 2024 at 4:15 p.m., Eastern Time, or as soon as practicable thereafter.

The Registrant understands that
the Securities and Exchange Commission will consider this request for acceleration of the effective date of the Registration Statement
as a confirmation of the fact that the Registrant is aware of its responsibilities under the Securities Act as they relate to the proposed
public offering of the securities specified in the Registration Statement.

The Registrant respectfully requests
that it be notified of such effectiveness by a telephone call to Howard E. Berkenblit, Esq. of Sullivan & Worcester LLP at (617) 338-2979
and that such effectiveness also be confirmed in writing.

    Very truly yours,

    NLS PHARMACEUTICS LTD.

    By:
    /s/ Alexander C. Zwyer

    Alexander C. Zwyer, Chief Executive Officer

United States securities and exchange commission logo
May 31, 2024
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
The Circle 6
8058 Zurich, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-1
Filed May 30, 2024
File No. 333-279806
Dear Alexander Zwyer:
            This is to advise you that we have not reviewed and will not review your registration
statement.
            Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you
that the company and its management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding any review, comments, action or absence of action by the staff.
            Please contact Jessica Dickerson at 202-551-8013 with any questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Ron Ben-Bassat, Esq.

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NLS Pharmaceutics Ltd.

The Circle 6

8058 Zurich, Switzerland

January
18, 2023

VIA EDGAR

Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, DC 20549

    RE:
    NLS Pharmaceutics Ltd. (CIK 0001783036)

    Registration Statement No. 333-269220 on Form F-3 (the “Registration Statement”)

Ladies and Gentlemen:

NLS Pharmaceutics Ltd. (the “Registrant”)
hereby requests acceleration of the effectiveness of the above-referenced Registration Statement pursuant to Rule 461 under the Securities
Act of 1933, as amended (the “Securities Act”), so that it may become effective on January 20, 2023, at 4:00 p.m.,
Eastern Time, or as soon thereafter as is practicable.

The Registrant understands that
the Securities and Exchange Commission will consider this request for acceleration of the effective date of the Registration Statement
as a confirmation of the fact that the Registrant is aware of its responsibilities under the Securities Act and the Securities Exchange
Act of 1934, as amended, as they relate to the proposed public offering of the securities specified in the Registration Statement.

    Very truly yours,

    NLS PHARMACEUTICS LTD.

    By:
     /s/ Chad Hellmann

    Chad Hellmann

    Chief  Financial Officer

United States securities and exchange commission logo
January 18, 2023
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
The Circle 6
8058 Zurich, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-3
Filed January 13, 2023
File No. 333-269220
Dear Alexander Zwyer:
            This is to advise you that we have not reviewed and will not review your registration
statement.
            Please refer to Rules 460 and 461 regarding requests for acceleration.  We remind you
that the company and its management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding any review, comments, action or absence of action by the staff.
            Please contact Tyler Howes at 202-551-3370 with any questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Ron Ben-Bassat, Esq.

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NLS Pharmaceutics Ltd.

The Circle 6

8058 Zurich, Switzerland

December 13, 2022

VIA EDGAR

Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, DC 20549

    RE:
    NLS Pharmaceutics Ltd. (CIK 0001783036)

    Registration Statement No. 333-268690 on Form F-3 (the “Registration Statement”)

Ladies and Gentlemen:

NLS Pharmaceutics Ltd. (the
“Registrant”) hereby requests acceleration of the effectiveness of the above-referenced Registration Statement pursuant
to Rule 461 under the Securities Act of 1933, as amended (the “Securities Act”), so that it may become effective on
December 15, 2022, at 4:00 p.m., Eastern Time, or as soon thereafter as is practicable.

The Registrant understands
that the Securities and Exchange Commission will consider this request for acceleration of the effective date of the Registration Statement
as a confirmation of the fact that the Registrant is aware of its responsibilities under the Securities Act and the Securities Exchange
Act of 1934, as amended, as they relate to the proposed public offering of the securities specified in the Registration Statement.

    Very truly yours,

    NLS PHARMACEUTICS LTD.

    By:
    /s/
Alexander Zwyer

    Alexander Zwyer

    Chief Executive Officer

United States securities and exchange commission logo
December 13, 2022
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
The Circle 6
8058 Zurich, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-3
Filed December 6, 2022
File No. 333-268690
Dear Alexander Zwyer:
            This is to advise you that we have not reviewed and will not review your registration
statement.
            Please refer to Rules 460 and 461 regarding requests for acceleration.  We remind you
that the company and its management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding any review, comments, action or absence of action by the staff.
            Please contact Cindy Polynice at 202-551-8707 with any questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Howard Berkenblit

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NLS Pharmaceutics Ltd.

The Circle 6

8058 Zurich

Switzerland

 June 17, 2022

VIA EDGAR

Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, DC 20549

    RE:
    NLS Pharmaceutics Ltd. (CIK: 0001783036)

    Registration Statement No. 333-265529 on Form F-1 (the “Registration Statement”)

Ladies and Gentlemen:

NLS Pharmaceutics Ltd. (the “Registrant”)
hereby requests acceleration of the effectiveness of the above-referenced Registration Statement pursuant to Rule 461 under the Securities
Act of 1933, as amended (the “Securities Act”), so that it may become effective on June 21, 2022, at 4:00 p.m., Eastern
Time, or as soon thereafter as is practicable.

The Registrant understands that
the Securities and Exchange Commission will consider this request for acceleration of the effective date of the Registration Statement
as a confirmation of the fact that the Registrant is aware of its responsibilities under the Securities Act and the Securities Exchange
Act of 1934, as amended, as they relate to the proposed public offering of the securities specified in the Registration Statement.

    Very truly yours,

                    NLS PHARMACEUTICS LTD.

    By:
    /s/ Alexander Zwyer

    Name: Alexander Zwyer
Title: Chief Executive Officer

United States securities and exchange commission logo
June 16, 2022
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
The Circle 6
8058 Zurich, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-1
Filed June 10, 2022
File No. 333-265529
Dear Mr. Zwyer:
            This is to advise you that we have not reviewed and will not review your registration
statement.
            Please refer to Rules 460 and 461 regarding requests for acceleration.  We remind you
that the company and its management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding any review, comments, action or absence of action by the staff.
            Please contact Tim Buchmiller at (202) 551-3635 with any questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Ron Ben-Bassat, Esq.

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NLS Pharmaceutics Ltd.

The Circle 6

8058 Zurich

Switzerland

February 10, 2022

VIA EDGAR

Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, DC 20549

 RE: NLS
Pharmaceutics Ltd. (CIK: 0001783036)

Registration
Statement No. 333-262489 on Form F-3 (the “Registration Statement”)

Ladies and Gentlemen:

NLS Pharmaceutics Ltd. (the “Registrant”)
hereby requests acceleration of the effectiveness of the above-referenced Registration Statement pursuant to Rule 461 under the Securities
Act of 1933, as amended (the “Securities Act”), so that it may become effective on February 11, 2022, at 4:00 p.m.,
Eastern Time, or as soon thereafter as is practicable.

The Registrant understands that
the Securities and Exchange Commission will consider this request for acceleration of the effective date of the Registration Statement
as a confirmation of the fact that the Registrant is aware of its responsibilities under the Securities Act and the Securities Exchange
Act of 1934, as amended, as they relate to the proposed public offering of the securities specified in the Registration Statement.

  Very
truly yours,

NLS
PHARMACEUTICS LTD.

By: /s/
Alexander Zwyer

Alexander
Zwyer, Chief Executive Officer

United States securities and exchange commission logo
February 8, 2022
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
The Circle 6
8058 Zurich, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-3
Filed February 3, 2022
File No. 333-262489
Dear Mr. Zwyer:
            This is to advise you that we have not reviewed and will not review your registration
statement.
            Please refer to Rules 460 and 461 regarding requests for acceleration.  We remind you
that the company and its management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding any review, comments, action or absence of action by the staff.
            Please contact Margaret Schwartz at 202-551-7153 with any questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Ron Ben-Bassat, Esq.

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NLS Pharmaceutics Ltd.

The Circle 6

8058 Zurich, Switzerland

January 4, 2022

VIA EDGAR

U.S. Securities and Exchange Commission

Division of Corporation Finance

Office of Life Sciences

100 F Street, N.E.

Washington, D.C. 20549

Attention: Ada D. Sarmento

    Re:
    NLS Pharmaceutics Ltd.

    Registration Statement on Form F-1

    Filed December 20, 2021

    File No. 333-261766

Dear Ada D. Sarmento:

Pursuant to Rule 461 under the
Securities Act of 1933, as amended, NLS Pharmaceutics Ltd. hereby requests acceleration of effectiveness of the above referenced Registration
Statement so that it will become effective at 4:00 p.m. EST on Thursday, January 6, 2022, or as soon as thereafter practicable.

    Very truly yours,

    /s/ Alexander Zwyer

    Alexander Zwyer

    Chief Executive Officer

    cc:
    Sullivan & Worcester LLP

United States securities and exchange commission logo
January 4, 2022
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
The Circle 6
8058 Zurich, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-1
Filed December 20, 2021
File No. 333-261766
Dear Mr. Zwyer:
            This is to advise you that we have not reviewed and will not review your registration
statement.
            Please refer to Rules 460 and 461 regarding requests for acceleration.  We remind you
that the company and its management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding any review, comments, action or absence of action by the staff.
            Please contact Ada D. Sarmento at 202-551-3798 with any questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Howard Berkenblit, Esq.

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NLS Pharmaceutics Ltd.

Alter Postplatz 2

CH-6370 Stans, Switzerland

November 1, 2021

VIA EDGAR

Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, DC 20549

 RE: NLS
Pharmaceutics Ltd. (CIK: 0001783036)

   Registration
Statement No. 333-260435 on Form F-1 (the “Registration Statement”)

Ladies and Gentlemen:

NLS Pharmaceutics Ltd. (the “Registrant”)
hereby requests acceleration of the effectiveness of the above-referenced Registration Statement pursuant to Rule 461 under the Securities
Act of 1933, as amended (the “Securities Act”), so that it may become effective on November 3, 2021 at 5:00 p.m., Eastern
Time, or as soon thereafter as is practicable.

The Registrant understands that
the Commission will consider this request for acceleration of the effective date of the Registration Statement as a confirmation of the
fact that the Registrant is aware of its responsibilities under the Securities Act as they relate to the proposed public offering of the
securities specified in the Registration Statement.

    Very truly yours,

    nls pharmaceutics LTD.

    By:
    /s/ Alexander Zwyer

    Alexander Zwyer, Chief Executive Officer

United States securities and exchange commission logo
October 28, 2021
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
Alter Postplatz 2
6370 Stans, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-1
Filed October 22, 2021
File No. 333-260435
Dear Mr. Zwyer:
            This is to advise you that we have not reviewed and will not review your registration
statement.
            Please refer to Rules 460 and 461 regarding requests for acceleration.  We remind you
that the company and its management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding any review, comments, action or absence of action by the staff.
            Please contact Lauren Hamill at 303-844-1008 with any questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Ron Ben-Bassat

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January 25, 2021

Securities and Exchange Commission

100 F. Street, NE

Washington, D.C. 20549

    Re:
    NLS Pharmaceutics Ltd.

    Registration Statement on Form F-1

    File No.  333-236797

VIA EDGAR

Ladies and Gentlemen:

Pursuant to Rule 461 of the General Rules and Regulations of the
U.S. Securities and Exchange Commission under the Securities Act of 1933, as amended, Maxim Group LLC, as representative of the
underwriters, hereby requests acceleration of the effective date of the above-referenced Registration Statement so that it will
become effective at 5:00 p.m., Washington D.C. time, on Thursday, January 28, 2021, or as soon thereafter as practicable.

The following is supplemental information supplied under Rule 418(a)(7)
and Rule 460 under the Securities Act of 1933:

    (i)
    Date of preliminary prospectus:  January 19, 2021.

    (ii)
    Dates of distribution:  January 19, 2021 through the date hereof.

    (iii)
    Number of prospective underwriters and selected dealers to whom the preliminary prospectus was furnished: 8.

    (iv)
    Number of prospectuses so distributed: 468.

The undersigned confirms that it has complied with and will continue
to comply with, and it has been informed or will be informed by participating dealers that they have complied with or will comply
with, Rule 15c2-8 promulgated under the Securities Exchange Act of 1934, as amended, in connection with the above-referenced issue.

[Signature Page Follows]

    MAXIM GROUP LLC

    By:
    /s/
Clifford A. Teller

    Name:
    Clifford A. Teller

    Title:
    Executive Managing Director

    Head of Investment Banking

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NLS Pharmaceutics Ltd.

Alter Postplatz 2

CH-6370 Stans, Switzerland

January 25, 2021

VIA EDGAR

Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, DC 20549

    RE:
    NLS Pharmaceutics Ltd. (CIK: 0001783036)

    Registration Statement No. 333-236797 on Form F-1 (the “Registration Statement”)

Ladies and Gentlemen:

NLS Pharmaceutics Ltd.
(the “Registrant”) hereby requests acceleration of the effectiveness of the above-referenced Registration Statement
pursuant to Rule 461 under the Securities Act of 1933, as amended (the “Securities Act”), so that it may become
effective on January 28, 2021 at 5:00 p.m., Eastern Time, or as soon thereafter as is practicable. By separate letter, the underwriters
of the issuance of the securities being registered have joined in this request for acceleration.

The Registrant understands
that the Commission will consider this request for acceleration of the effective date of the Registration Statement as a confirmation
of the fact that the Registrant is aware of its responsibilities under the Securities Act as they relate to the proposed public
offering of the securities specified in the Registration Statement.

    Very truly yours,

    nls pharmaceutics LTD.

    By:
    /s/ Alexander Zwyer

    Alexander Zwyer, Chief Executive Officer

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NLS
Pharmaceutics Ltd.

Alter Postplatz 2

CH-6370 Stans, Switzerland

November 19, 2020

Via EDGAR

Securities and Exchange Commission

Division of Corporation Finance

Office of Life Sciences

100 F Street, NE

Washington, DC 20549

Attention: Laura Crotty and Mary Beth Breslin

    Re:

        NLS Pharmaceutics Ltd.

        Amendment No. 3 to

        Registration Statement on Form F-1

        Filed November 13, 2020

        File No. 333-236797

Dear Mss. Crotty and Breslin:

The purpose of this letter is to respond to
the comments of the staff of the Division of Corporation Finance (the “Staff”) of the U.S. Securities and Exchange
Commission as set forth in your letter of November 16, 2020, regarding the above referenced registration statement on Form F-1
(the “Registration Statement”). For your convenience, your original comments appear in bold, followed by our response.
Capitalized terms not otherwise defined herein shall have the meaning ascribed to them in the Registration Statement.

Exhibits

    1.

        We note assumption (e) in part II of
        the legal opinion of Wenger & Vieli AG relating to the shareholder approval required to effect the increase in share
        capital necessary to issue the Shares and such Common Shares for which Warrants and Underwriter Warrants are granted, and the
        related required actions of the board of directors. We also note your statement on page 43 of the registration statement that
        you expect to obtain authorization from your shareholders prior to the offering. Please advise us of the status of the
        shareholder authorization and the related board of directors' actions. In addition, please confirm that an appropriately
        unqualified legal opinion will be filed by post-effective amendment no later than the closing date of the offering to remove
        assumption (e). See Section II.B.2.f. of Staff Legal Bulletin No. 19 for guidance.

Response: With respect to the shareholder authorization and
related board of directors’ actions we hereby advise you that as of the date hereof we have collected all necessary authorizations
of the current shareholders by way of proxies and the approval of the board of directors to effect the increase in share capital
necessary to validly issue the common shares included in the units to be offered pursuant to the Registration Statement as of the
closing date of the offering, and to create the authorized share capital (as basis for the issuance of the shares that the underwriters
may exercise pursuant to their over-allotment options) as well as the conditional share capital required to issue the Warrants
and Representative’s Warrants, including pursuant to the over-allotment option (each as defined in the Registration Statement)
(as basis for the issuance of the Common Shares for which the Warrants, including with respect to the over-allotment option, and
Representative’s Warrants are granted). As of the date of pricing (immediately thereafter pricing), based on the above mentioned
authorizations and approvals, the appropriate resolutions of the shareholders and the board of directors will be made, and as a
result thereof, they will become final and effective. Please note that until such time, each shareholder may revoke the authorization
and the board of directors may reverse the approval.

With respect to the legal opinion of Wenger
& Vieli AG, or WV, we hereby advise you that as of the date hereof WV has confirmed to us that it will provide us with an appropriately
unqualified legal opinion to remove assumption (e) for the purpose of filing by post-effective amendment by no later than the closing
date of the offering.

* * *

If you have any questions or require additional
information, please call our attorneys, Ron Ben-Bassat at (212) 660-5003, Howard E. Berkenblit at (617) 338-2979 or Oded Har-Even
at (212) 660-5002, of Sullivan & Worcester LLP.

Sincerely,

NLS PHARMACEUTICS LTD.

    By:
    /s/ Alexander Zwyer

    Chief Executive Officer

    cc:
    Michael Fay

    Jeanne Baker

United States securities and exchange commission logo
November 16, 2020
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
Alter Postplatz 2
CH-6370 Stans, Switzerland
Re:NLS Pharmaceutics Ltd.
Amendment No. 3 to
Registration Statement on Form F-1
Filed November 13, 2020
File No. 333-236797
Dear Mr. Zwyer:
            We have reviewed your amended registration statement and have the following
comment.
            Please respond to this letter by amending your registration statement and providing the
requested information.  If you do not believe our comment applies to your facts and
circumstances or do not believe an amendment is appropriate, please tell us why in your
response.
            After reviewing any amendment to your registration statement and the information you
provide in response to this comment, we may have additional comments.
Amendment 3 to Form F-1 filed November 13, 2020
Exhibits
1.We note assumption (e) in part II of the legal opinion of Wenger & Vieli AG relating to
the shareholder approval required to effect the increase in share capital necessary to issue
the Shares and such Common Shares for which Warrants and Underwriter Warrants are
granted, and the related required actions of the board of directors. We also note your
statement on page 43 of the registration statement that you expect to obtain authorization
from your shareholders prior to the offering. Please advise us of the status of the
shareholder authorization and the related board of directors' actions. In addition, please
confirm that an appropriately unqualified legal opinion will be filed by post-effective
amendment no later than the closing date of the offering to remove assumption (e). See
Section II.B.2.f. of Staff Legal Bulletin No. 19 for guidance.

 FirstName LastNameAlexander Zwyer
 Comapany NameNLS Pharmaceutics Ltd.
 November 16, 2020 Page 2
 FirstName LastName
Alexander Zwyer
NLS Pharmaceutics Ltd.
November 16, 2020
Page 2
            You may contact Michael Fay at 202-551-3812 or Jeanne Baker at 202-551-3691 if you
have questions regarding comments on the financial statements and related matters.  Please
contact Laura Crotty at 202-551-7614 or Mary Beth Breslin at 202-551-3625 with any other
questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Howard Berkenblit, Esq.

CORRESP
1
filename1.htm

NLS
Pharmaceutics Ltd.

Alter
Postplatz 2

CH-6370
Stans, Switzerland

October
19, 2020

Via
EDGAR

Securities
and Exchange Commission

Division
of Corporation Finance

Office
of Life Sciences

100
F Street, NE

Washington,
DC 20549

Attention:
Laura Crotty and Mary Beth Breslin

    Re:
    NLS
                           Pharmaceutics Ltd.

Registration
Statement on Form F-1

        Filed
        August 31, 2020

        File
        No. 333-236797

Dear
Mss. Crotty and Breslin:

The
purpose of this letter is to respond to the comments of the staff of the Division of Corporation Finance (the “Staff”)
of the U.S. Securities and Exchange Commission as set forth in your letter of September 16, 2020, regarding the above referenced
registration statement on Form F-1. For your convenience, your original comments appear in bold, followed by our response. We
are concurrently filing Amendment No. 2 to Form F-1 (“Amendment No. 2”).

The
Offering, page 5

    1.
    We
    have reviewed your response to prior comment 1 and note that you will account for the Transaction Fee as a reduction from
    paid-in capital. Please tell us how you have considered SAB Topic 5.A, codified in ASC 340-10-S99-1, as part of the basis
    for your accounting.

Response:
We have considered ASC 340-10-S99-1 in accounting for the offering expenses and as of the year ended December 31, 2019, the Company
has deferred $260,211 of specific costs attributable to the proposed offering. The costs deferred exclude any management and general
and administrative expenses, including the Transaction Fee (as defined in Amendment No. 2), and only include costs that are related
to the current offering contemplated by Amendment No. 2.

Financing
Activities, page 56

    2.
    We
    note your statement on page 56 that you expect to formalize the terms of the 2020 Bridge Loan and file such agreement as an
    exhibit to the registration statement. Please file the referenced agreement with the next amendment.

Response:
The 2020 Bridge Loan has been filed as an exhibit to Amendment No. 2.

Business

Pivotal
Study Development Strategy, page 67

    3.
    We
note your response to our prior comment 2 in which you have described the origin of the efficacy portion of the FDA's review of
product candidates; however, we do not see how the provided analysis supports your use of the term "pivotal" which is
most commonly associated with Phase III clinical trials. As previously requested, please tell us why it is appropriate to use
this term for both planned clinical trials, or revise the prospectus as appropriate.

Response:
We have revised our disclosures throughout Amendment No. 2 in response to the Staff’s comment and have elected to refrain
from referring to our clinical trials as pivotal trials in Amendment No. 2.

*
* *

Laura Crotty and Mary Beth Breslin

Securities and Exchange Commission

October 19, 2020

Page 2

If
you have any questions or require additional information, please call our attorneys, Ron Ben-Bassat at (212) 660-5003, Howard
E. Berkenblit at (617) 338-2979 or Oded Har-Even at (212) 660-5002, of Sullivan & Worcester LLP.

Sincerely,

NLS
PHARMACEUTICS LTD.

    By:
    /s/
    Alexander Zwyer

    Chief Executive Officer

    cc:
    Michael
    Fay

    Jeanne Baker

United States securities and exchange commission logo
September 16, 2020
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
Alter Postplatz 2
CH-6370 Stans, Switzerland
Re:NLS Pharmaceutics Ltd.
Amendment No. 1 to
Registration Statement on Form F-1
Filed August 31, 2020
File No. 333-236797
Dear Mr. Zwyer:
            We have reviewed your amended registration statement and have the following
comments.  In some of our comments, we may ask you to provide us with information so we
may better understand your disclosure.
            Please respond to this letter by amending your registration statement and providing the
requested information.  If you do not believe our comments apply to your facts and
circumstances or do not believe an amendment is appropriate, please tell us why in your
response.
            After reviewing any amendment to your registration statement and the information you
provide in response to these comments, we may have additional comments.  Unless we note
otherwise, our references to prior comments are to comments in our March 3, 2020 letter.
Registration Statement on Form F-1/A filed August 31, 2020
The Offering, page 5
1.We have reviewed your response to prior comment 1 and note that you will account for
the Transaction Fee as a reduction from paid-in capital.  Please tell us how you have
considered SAB Topic 5.A, codified in ASC 340-10-S99-1, as part of the basis for your
accounting.
Financing Activities, page 56
2.We note your statement on page 56 that you expect to formalize the terms of the 2020
Bridge Loan and file such agreement as an exhibit to the registration statement. Please file

 FirstName LastNameAlexander Zwyer
 Comapany NameNLS Pharmaceutics Ltd.
 September 16, 2020 Page 2
 FirstName LastName
Alexander Zwyer
NLS Pharmaceutics Ltd.
September 16, 2020
Page 2
the referenced agreement with the next amendment.
Business
Pivotal Study Development Strategy, page 67
3.We note your response to our prior comment 2 in which you have described the origin of
the efficacy portion of the FDA's review of product candidates; however, we do not see
how the provided analysis supports your use of the term "pivotal" which is most
commonly associated with Phase III clinical trials. As previously requested, please tell us
why it is appropriate to use this term for both planned clinical trials, or revise the
prospectus as appropriate.
            You may contact Michael Fay at 202-551-3812 or Jeanne Baker at 202-551-3691 if you
have questions regarding comments on the financial statements and related matters.  Please
contact Laura Crotty at 202-551-7614 or Mary Beth Breslin at 202-551-3625 with any other
questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Howard Berkenblit, Esq.

CORRESP
1
filename1.htm

NLS
Pharmaceutics Ltd.

Alter Postplatz 2

CH-6370 Stans, Switzerland

August 31, 2020

Via EDGAR - Confidential

Securities and Exchange Commission

Division of Corporation Finance

Office of Life Sciences

100 F Street, NE

Washington, DC 20549

Attention: Irene Paik and Mary Beth Breslin

    Re:
    NLS Pharmaceutics Ltd.

        Registration Statement on Form F-1

        Filed February 28, 2020

        File No. 333-236797

Dear Mss. Paik and Breslin:

The purpose of this letter is to respond
to the comments of the staff of the Division of Corporation Finance (the “Staff”) of the U.S. Securities and Exchange
Commission as set forth in your letter of March 3, 2020, regarding the above referenced registration statement on Form F-1. For
your convenience, your original comments appear in bold, followed by our response. We are concurrently filing Amendment No. 1
to Form F-1 (“Amendment No. 1”). Page references in our response are to Amendment No. 1.

The Offering, page 4

    1.
    Please
    disclose how you will account for the Transaction Fee, including disclosure of an estimated dollar amount. Make conforming
    changes throughout the filing.

Response: We have added disclosure on how we intend
to account for the Transaction Fee on page 46. We intend to account for the Transaction Fee as a reduction from paid-in capital
as this expense is part of the Company’s financing activities. We have also provided an estimated dollar amount for the
Transaction Fee on page 6 and elsewhere in the prospectus.

Business

Pivotal Study Development Strategy, page 64

    2.
    We
    note that you label both clinical trials you are planning for Quilience as "pivotal" clinical trials. Please tell
    us why it is appropriate to use this term for both clinical trials, or revise the prospectus as appropriate.

Response: We believe that it is
appropriate to describe both clinical trials (the “Trials”) that we are planning for Quilience, as disclosed in Amendment
No. 1, as “pivotal” because such Trials are intended to provide the ultimate evidence of safety and efficacy that
the U.S. Food and Drug Administration (the “FDA”) (and the European Medicines Agency) will use in deciding whether
or not to approve Quilience.

Such belief is based on the FDA’s
“Guidance for Industry Providing Clinical Evidence of Effectiveness for Human Drug and Biological Products,” which
includes the following guidance:

“The effectiveness requirement
for drug approval was added to the Federal Food, Drug, and Cosmetic Act in 1962 (between the passage of the Act in 1938 and the
1962 amendments, drug manufacturers were required to show only that their drugs were safe). Since the 1962 Amendments added this
provision to the statute, discussions have ensued within the FDA regarding the quantity and quality of the evidence needed to
establish effectiveness. With regard to quantity, it has been FDA's position that Congress generally intended to require at least
two adequate and well-controlled studies, each convincing on its own, to establish effectiveness. (See e.g., Final Decision on
Benylin, 44 FR 51512, 518 (August 31, 1979); Warner-Lambert Co. V. Heckler, 787 F. 2d 147 (3d Cir. 1986)). The FDA’s position
is based on the language in the statute and the legislative history of the 1962 amendments. Language in a Senate report suggests
that the phrase "adequate and well-controlled investigations" was designed not only to describe the quality of the required
data but the "quantum" of required evidence. (S. Rep. No. 1744, Part 2, 87th Cong. 2d Sess. 6 (1962)).”

Irene Paik and Mary Beth Breslin

Office of Life Sciences

Securities and Exchange Commission

August 31, 2020

Page 2

Nolazol Clinical Trial Results

Phase 2 Pediatric Clinical Trial, page 74

    3.
    We
    note your revisions in response to prior comment 11. Please further revise to avoid characterizing clinical trial results
    in terms of safety or efficacy, such as where you describe the results from the phase 2 pediatric trial described on page
    74.

Response: We have further revised the prospectus on
pages  77 an  78 to avoid characterizing clinical trial results in terms of safety or efficacy.

Note 1. Background, page F-6

    4.
    We
    have reviewed the ownership interests in the three companies prior to the merger as set forth in your response to prior comment
    14 and note your belief that in accordance with ASC 805-50-30-5 this was a common controlled transaction. However, we note
    that no individual held more than 50% of the voting ownership interest of each entity. Please revise your disclosure to state,
    if true, that due to the high degree of common ownership amount the three companies and because individual investor's ownership
    are in substance the same after the transaction, that this was deemed to be a non-substantive merger, with no step up in basis
    of the assets and liabilities in the merger.

Response: We have updated our disclosure
on page F-8 to state that due to the high degree of common ownership among the three companies and because individual investors’
ownership are, in substance, the same after the merger transaction, that this was deemed to be a non-substantive merger, with
no step up in basis of the assets and liabilities in the merger.

Note 8. License Revenues, page F-13

 5. We
                                         have reviewed your revised disclosures in response to prior comment 16 and have the following
                                         additional comments:

 ● With
                                         reference to ASC 606-10-25-19, please more fully explain how you determined that the
                                         promises you have identified within the contract (i.e. the license, and promised services
                                         with respect to (i) development and (ii) participation in a steering committee) are not
                                         distinct. In this regard, specifically clarify why each good or service promised has
                                         no value to Europharma on a stand-alone basis;

 ● Explain
                                         your basis for bundling these promises into your License Performance Obligation. Also,
                                         as required by ASC 606-10-25-31, please explain how the use of an input method as a measure
                                         of progress towards completion of the License Performance Obligation using development
                                         costs meets the overall objective of depicting your performance in satisfying this bundled
                                         performance obligation. Specifically identify the patterns of performance of each nondistinct
                                         promise and the judgement used in determining your stated measure of progress in the
                                         combined performance;

Irene Paik and Mary Beth Breslin

Office of Life Sciences

Securities and Exchange Commission

August 31, 2020

Page 3

 ● Clarify
                                         how you considered the guidance in ASC 606-10-55-50 through 55-53 in accounting for the
                                         $2,500,000 upfront payment. In particular, explain how you assessed whether there was
                                         a transfer of a promised good or service; and

 ● Provide
                                         the disclosures required by ASC 606-10-50-17 and 50-18.

Response:
We have updated and expanded our disclosures beginning on page F-20 to address the comments and specific ASC Topic sections
as mentioned in the above comment.

*
* *

If
you have any questions or require additional information, please call our attorneys, Ron Ben-Bassat at (212) 660-5003, Howard
E. Berkenblit at (617) 338-2979 or Oded Har-Even at (212) 660-5002, of Sullivan & Worcester LLP.

Sincerely,

NLS
PHARMACEUTICS LTD.

    By:
    /s/
    Alexander Zwyer

    Chief
    Executive Officer

    cc:
    Michael
    Fay

    Jeanne
    Baker

March 3, 2020
Alexander Zwyer
Chief Executive Officer
NLS Pharmaceutics Ltd.
Alter Postplatz 2
CH-6370 Stans, Switzerland
Re:NLS Pharmaceutics Ltd.
Registration Statement on Form F-1
Filed February 28, 2020
File No. 333-236797
Dear Mr. Zwyer:
            We have reviewed your amended registration statement and have the following
comments.  In some of our comments, we may ask you to provide us with information so we
may better understand your disclosure.
            Please respond to this letter by amending your registration statement and providing the
requested information.  If you do not believe our comments apply to your facts and
circumstances or do not believe an amendment is appropriate, please tell us why in your
response.
            After reviewing any amendment to your registration statement and the information you
provide in response to these comments, we may have additional comments.  Unless we note
otherwise, our references to prior comments are to comments in our January 14, 2020 letter.
Registration Statement on Form F-1 filed February 28, 2020
The Offering, page 4
1.Please disclose how you will account for the Transaction Fee, including disclosure of an
estimated dollar amount.  Make conforming changes throughout the filing.
Business
Pivotal Study Development Strategy, page 64
2.We note that you label both clinical trials you are planning for Quilience as "pivotal"
clinical trials.  Please tell us why it is appropriate to use this term for both clinical trials, or
revise the prospectus as appropriate.

 FirstName LastNameAlexander Zwyer
 Comapany NameNLS Pharmaceutics Ltd.
 March 3, 2020 Page 2
 FirstName LastNameAlexander Zwyer
NLS Pharmaceutics Ltd.
March 3, 2020
Page 2
Nolazol Clinical Trial Results
Phase 2 Pediatric Clinical Trial, page 74
3.We note your revisions in response to prior comment 11.  Please further revise to avoid
characterizing clinical trial results in terms of safety or efficacy, such as where you
describe the results from the phase 2 pediatric trial described on page 74.
Interim Condensed Financial Statements
Notes to the Condensed Financial Statements
Note 1. Background, page F-6
4.We have reviewed the ownership interests in the three companies prior to the merger as
set forth in your response to prior comment 14 and note your belief that in accordance
with ASC 805-50-30-5 this was a common controlled transaction.  However, we note
that no individual held more than 50% of the voting ownership interest of each entity.
Please revise your disclosure to state, if true, that due to the high degree of common
ownership amount the three companies and because individual investor's ownership are in
substance the same after the transaction, that this was deemed to be a nonsubstantive
merger, with no step up in basis of the assets and liabilities in the merger.
Note 8. License Revenues, page F-13
5.We have reviewed your revised disclosures in response to prior comment 16 and have the
following additional comments:
•With reference to ASC 606-10-25-19, please more fully explain how you determined
that the promises you have identified within the contract (i.e. the license, and
promised services with respect to (i) development and (ii) participation in a steering
committee) are not distinct.  In this regard, specifically clarify why each good or
service promised has no value to Europharma on a stand-alone basis;
•Explain your basis for bundling these promises into your License Performance
Obligation.  Also, as required by ASC 606-10-25-31, please explain how the use of
an input method as a measure of progress towards completion of the License
Performance Obligation using development costs meets the overall objective of
depicting your performance in satisfying this bundled performance obligation.
Specifically identify the patterns of performance of each nondistinct promise and the
judgement used in determining your stated measure of progress in the combined
performance;
•Clarify how you considered the guidance in ASC 606-10-55-50 through 55-53 in
accounting for the $2,500,000 upfront payment.  In particular, explain how you
assessed whether there was a transfer of a promised good or service; and
•Provide the disclosures required by ASC 606-10-50-17 and 50-18.

 FirstName LastNameAlexander Zwyer
 Comapany NameNLS Pharmaceutics Ltd.
 March 3, 2020 Page 3
 FirstName LastName
Alexander Zwyer
NLS Pharmaceutics Ltd.
March 3, 2020
Page 3
            You may contact Michael Fay at 202-551-3812 or Jeanne Baker at 202-551-3691 if
you have questions regarding comments on the financial statements and related matters.
Please contact Irene Paik at 202-551-6553 or Mary Beth Breslin at 202-551-3625 with any
other questions.
Sincerely,
Division of Corporation Finance
Office of Life Sciences
cc:       Howard Berkenblit, Esq.