| Document and Entity Information Document | Feb. 10, 2025 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Creation Date | Feb. 10, 2025 |
| Document Period End Date | Feb. 10, 2025 |
| Amendment Flag | false |
| Entity Registrant Name | Medicus Pharma Ltd. |
| Entity Address, Address Line One | 300 Conshohocken State Road, Suite 200 |
| Entity Address, City or Town | Conshohocken |
| Entity Address, State or Province | PA |
| Entity Address, Country | US |
| Entity Address, Postal Zip Code | 19428 |
| Entity Incorporation, State Country Name | A6 |
| City Area Code | 610 |
| Local Phone Number | 540-7515 |
| Entity File Number | 001-42408 |
| Entity Central Index Key | 0001997296 |
| Entity Emerging Growth Company | true |
| Entity Tax Identification Number | 98-1778211 |
| Entity Ex Transition Period | false |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| NASDAQ Capital Market [Member] | Common shares, no par value [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common shares, no par value |
| Trading Symbol | MDCX |
| Security Exchange Name | NASDAQ |
| NASDAQ Capital Market [Member] | Warrants, each exercisable for one common share at an exercise price of $4.64 per share [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants, each exercisable for one common share at an exercise price of $4.64 per share |
| Trading Symbol | MDCXW |
| Security Exchange Name | NASDAQ |
