Uncomplicated UTI in adult men (no fever or flank pain)

Warning

Increasing incidence of multi-resistant E coli with extended-spectrum beta-lactamase (ESBL) enzymes, so perform culture in all treatment failures.

Maintain adequate hydration – aim to drink 1.5L of water a day if no contraindications.

Do not treat asymptomatic bacteriuria (unless urological surgery).

Advise paracetamol or ibuprofen for pain

Drug details

First Line

Trimethoprim  200mg twice daily for 7 days

Second Line

Cefalexin 500mg twice daily for 7 days

Editorial Information

Last reviewed: 26/03/2026

Next review date: 26/03/2029

Author(s): Specialist Antimicrobial Pharmacists.

Version: 1

Author email(s): gram.antibioticpharmacists@nhs.scot.

Approved By: Antimicrobial Management Team

Document Id: AMT_Emp_Primary Care_Uncomplicated UTI Men_1