Company: MDCXW
Filing Date: 2025-12-10
Form Type: DRS
Source: 0001062993-25-017281
Chunk: 0

Company: Medicus Pharma Ltd.
Filing Date: 2025-12-10
Form: DRS
Chunk 0
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<div align='center'>CONFIDENTIAL TREATMENT REQUESTED BY MEDICUS PHARMA LTD.PURSUANT TO 17 C.F.R. SECTION 200.83

As confidentially submitted to the Securities and Exchange Commission on December 10, 2025.This draft registration statement has not been publicly filed with the United States Securities and Exchange
Commission and all information herein remains strictly confidential.</div>

Registration No. 333-

<div align='center'>UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT
UNDER THE SECURITIES ACT OF 1933

(Exact name of registrant as specified in its charter)</div>

| Ontario, Canada                 |     | 98-1778211            |
| (State or other jurisdiction of 
 incorporation or organization)  |     | -I.R.S. Employer      
 Identification Number |

<div align='center'>300 Conshohocken State Rd., Suite 200

W. Conshohocken, PA 19428

Telephone: (610) 636-0184

(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

Dr. Raza Bokhari
Medicus Pharma Inc.

300 Conshohocken State Road, Suite 200

Conshohocken, PA 19428

(Name, address, including zip code, and telephone number, including area code, of agent for service)

With copies to:

Christopher J. Cummings
Paul, Weiss, Rifkind, Wharton & Garrison LLP
1285 Avenue of the Americas
New York, NY
10019-6064
Telephone: (212) 373-3000
Facsimile: (212) 757-3990</div>

Approximate date of commencement of proposed sale to the public: From time to time after this registration statement becomes effective.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

<div align='center'>CONFIDENTIAL TREATMENT REQUESTED BY MEDICUS PHARMA LTD.PURSUANT TO 17 C.F.R. SECTION 200.83</div>

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities