Top Takeaways
- Typically treat uncomplicated recurrent UTIs in women with short courses of nitrofurantoin, TMP/SMX, or a single fosfomycin dose.
- Avoid extending antibiotic durations, using broader agents, or increasing doses to treat recurrent UTIs.
- Consider non-antibiotic options (cranberry products, increased fluid intake, methenamine, etc) for recurrent UTI prophylaxis to limit antibiotic exposure.
Updated guidelines provide tips on how to treat and prevent uncomplicated recurrent urinary tract infections (rUTIs) in women.
These infections are typically defined as 2 or more bacterial cystitis cases within a 6-month time frame...or 3 or more in 1 year.
Focus on stewardship when prescribing rUTI antibiotics.
Acute management. Usually start with TMP/SMX (1 DS tab bid x 3 days)...nitrofurantoin monohydrate/macrocrystals (100 mg bid x 5 days)...or fosfomycin (3 g x 1 dose).
Tailor options based on resistance, patient factors, etc. For example, avoid empiric TMP/SMX if local resistance is >20%...and steer away from nitrofurantoin if kidney function is less than 30 to 60 mL/min.
Move to beta-lactams (cephalexin, etc) and quinolones as second-line options if patients have allergies or resistance to first-line meds.
Similarly, save newer po agents (gepotidacin, pivmecillinam, etc) as last-line due to their high cost.
Avoid lengthening antibiotic courses beyond 7 days, using broader agents, or increasing doses for rUTIs. There isn’t good evidence showing that these work...and they may only increase resistance.
Prophylaxis. Use shared decision-making when weighing prevention strategies. And support stewardship by using antibiotics last.
Discuss cranberry products, such as 8 oz of juice (ideally low-sugar or unsweetened) or one 500 mg cap daily. Plus advise drinking more water (especially if intake is <1.5 L/day)...and avoiding spermicides.
Consider methenamine as a non-antibiotic Rx option. It’s metabolized to formaldehyde in the urine to kill bacteria in the bladder.
Steer toward methenamine HIPPURATE (1 g po bid) over methenamine MANDELATE. The mandelate salt has less rUTI data...must be taken 4 times daily...and was introduced pre-1938 before FDA approval requirements.
Avoid combining either methenamine salt with TMP/SMX...due to crystalluria risks.
Suggest vaginal estrogen in peri- or postmenopausal women. Meta-analyses show vaginal estrogen may lower rUTI risk by 60%.
If moving to antibiotics, limit exposure to prevent resistance.
For example, prescribe single antibiotic doses immediately before or after sex if rUTIs are associated with intercourse.
If moving to daily regimens for better control, limit courses to 1 year or less. And use low doses (TMP/SMX 40/200 mg daily, cephalexin 125 or 250 mg daily, etc) listed in our Urinary Tract Infections chart.
Confirm the patient’s pregnancy and breastfeeding status when writing for any rUTI antibiotics. Assess possible risks using our Antibiotics in Pregnancy and Lactation chart as a guide.
- Ackerman AL, Bradley M, D’Anci KE, et al. Updates to Recurrent Uncomplicated Urinary Tract Infections in Women: AUA/CUA/SUFU Guideline (2025). J Urol. 2026 Jan;215(1):3-12.
- Gupta K, Hooton TM, Naber KG, et al. International clinical practice guidelines for the treatment of acute uncomplicated cystitis and pyelonephritis in women: A 2010 update by the Infectious Diseases Society of America and the European Society for Microbiology and Infectious Diseases. Clin Infect Dis. 2011 Mar 1;52(5):e103-20.
- Bakhit M, Krzyzaniak N, Hilder J, et al. Use of methenamine hippurate to prevent urinary tract infections in community adult women: a systematic review and meta-analysis. Br J Gen Pract. 2021 Jun 24;71(708):e528-e537.
- Chen YY, Su TH, Lau HH. Estrogen for the prevention of recurrent urinary tract infections in postmenopausal women: a meta-analysis of randomized controlled trials. Int Urogynecol J. 2021 Jan;32(1):17-25.