Best Medications for Urinary Incontinence in Men

Initial Treatment Approach

The American Urological Association recommends starting with alpha-blockers alone for men with bothersome lower urinary tract symptoms, providing rapid symptom relief within 4 weeks by relaxing smooth muscle in the prostate and bladder neck 1
Alpha-blockers, such as tamsulosin 0.4 mg daily, are the cornerstone of initial medical management for men with urinary incontinence related to benign prostatic hyperplasia (BPH), with a fast onset of action and minimal effects on blood pressure 1, 3
Tamsulosin 0.4 mg once daily is the most commonly prescribed alpha-blocker due to its efficacy and safety profile 4

For men with prostate volume ≥30 mL and moderate-to-severe symptoms, combination therapy with an alpha-blocker plus a 5-alpha-reductase inhibitor, such as dutasteride 0.5 mg daily, is superior to monotherapy for long-term disease modification and prevention of progression 2
Combination therapy reduces overall BPH clinical progression by 67%, acute urinary retention by 79%, and need for surgery by 67% compared to alpha-blocker monotherapy or 5-alpha-reductase inhibitor monotherapy 2
Dutasteride is preferred over finasteride as it reduces serum DHT by approximately 95% and achieves 15-25% prostate volume reduction after 6 months with sustained improvement for up to 6-10 years 2

For men with persistent storage symptoms despite alpha-blocker therapy, adding an anticholinergic or beta-3 agonist, such as mirabegron, is reasonable after checking post-void residual (PVR) urine volume to ensure no significant retention 1, 6
The American Urological Association recommends starting with alpha-blockers alone and adding anticholinergics in selected cases due to variable efficacy and increased drug-related adverse events with combination therapy 1, 6

Tadalafil 5 mg once daily is FDA-approved for BPH and improves lower urinary tract symptoms by 1.74 points on IPSS compared to placebo, though this effect is modest compared to alpha-blockers 5, 6
Tadalafil monotherapy is an option for men with both erectile dysfunction and LUTS, providing dual benefit 5, 6

For men presenting with acute urinary retention related to BPH, prescribe an oral alpha-blocker, such as alfuzosin or tamsulosin, and complete at least 3 days of therapy before attempting trial without catheter (TWOC) 1, 6
Alpha-blockers improve successful TWOC rates: alfuzosin 60% versus placebo 39%; tamsulosin 47% versus placebo 29% 1, 6

Do not use combination therapy in men without prostatic enlargement (<30 mL) as this exposes patients to unnecessary side effects without benefit 2
Do not assume alpha-blocker therapy constitutes optimal management of concomitant hypertension, as patients may require separate antihypertensive management 2
Do not forget to inform patients about floppy iris syndrome risk before cataract surgery, as this applies to all alpha-blockers 5, 4, 3
Do not forget to double PSA values after 1 year of 5-alpha-reductase inhibitor therapy for accurate prostate cancer screening 2