Company: MDCXW
Filing Date: 2025-06-24
Form Type: 424B3
Source: 0001062993-25-012088
Chunk: 1

Company: Medicus Pharma Ltd.
Filing Date: 2025-06-24
Form: 424B3
Chunk 1
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 the Prospectus or this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.

<div align='center'>The date of this prospectus supplement is June 23, 2025.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549

___________________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 23, 2025

MEDICUS PHARMA LTD.(Exact name of registrant as specified in its charter)</div>

| Ontario                      | 001-42408    | 98-1778211          |
| (State or other jurisdiction | (Commission  | (IRS Employer       |
| of incorporation)            | File Number) | Identification No.) |

<div align='center'>300 Conshohocken State Road, Suite 200Conshohocken, Pennsylvania, United States 19428(Address of principal executive offices) (ZIP Code)

Registrant's telephone number, including area code: (610) 540-7515</div>

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

| Title of each class                  |     | Trading Symbols |     | Name of each exchange on which |
|                                      |     |                 |     | registered                     |
| Common shares, no par value          |     | MDCX            |     | NASDAQ Capital Market          |
| Warrants, each exercisable for one   |     | MDCXW           |     | NASDAQ Capital Market          |
| common share at an exercise price of |     |                 |     |                                |
| $4.