v3.26.1
Cover - shares
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Entity Addresses [Line Items]    
Document Type 20-F  
Amendment Flag false  
Document Registration Statement false  
Document Annual Report true  
Document Transition Report false  
Document Shell Company Report false  
Document Period End Date Dec. 31, 2025  
Document Fiscal Period Focus FY  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Entity File Number 001-37652  
Entity Registrant Name BIODEXA PHARMACEUTICALS PLC  
Entity Central Index Key 0001643918  
Entity Incorporation, State or Country Code D5  
Entity Address, Address Line One 1 Caspian Point  
Entity Address, Address Line Two Caspian Way  
Entity Address, City or Town Cardiff  
Entity Address, Country GB  
Entity Address, Postal Zip Code CF10 4DQ  
Title of 12(b) Security American Depositary Shares, each representing 100,000 ordinary shares  
Trading Symbol BDRX  
Security Exchange Name NASDAQ  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company false  
Document Accounting Standard International Financial Reporting Standards  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding 225,817,808,922  
ICFR Auditor Attestation Flag false  
Document Financial Statement Error Correction [Flag] false  
Auditor Firm ID 2814 1401
Auditor Name PKF Littlejohn LLP Mazars LLP
Auditor Location London, England London, England
Business Contact [Member]    
Entity Addresses [Line Items]    
Entity Address, Address Line One 1 Caspian Point  
Entity Address, Address Line Two Caspian Way  
Entity Address, City or Town Cardiff  
Entity Address, Country GB  
Entity Address, Postal Zip Code CF10 4DQ  
Country Region +44  
City Area Code 29  
Local Phone Number 2048 0180  
Contact Personnel Name Stephen Stamp