First-Line Treatment for Urge Incontinence
Bladder training is the first-line treatment for urge incontinence in women, with pharmacologic therapy reserved only after bladder training has failed. 1
Treatment Algorithm
Step 1: Bladder Training (First-Line)
- Initiate bladder training as the primary intervention for all women with urgency urinary incontinence, supported by strong recommendation and moderate-quality evidence from the American College of Physicians 1
- Bladder training alone improved urinary incontinence without the adverse effects associated with medications 1
- Adding pelvic floor muscle training (PFMT) to bladder training for pure urge incontinence does not improve outcomes compared to bladder training alone 1
Step 2: Address Modifiable Factors
- Implement weight loss and exercise if the patient is obese, as this effectively reduces urinary incontinence symptoms 2, 3
- Reduce caffeine intake and optimize fluid management 2
- Identify and treat reversible causes: urinary tract infections, metabolic disorders, excess fluid intake, delirium, and medications that worsen incontinence 1
Step 3: Pharmacologic Therapy (Second-Line Only)
Only proceed to medications if bladder training has been unsuccessful 1, 3
Preferred First-Line Medications (Best Tolerability):
- Tolterodine or darifenacin are the optimal first choices due to discontinuation rates similar to placebo 2, 3
- Solifenacin has the lowest risk for discontinuation due to adverse effects among all antimuscarinics (NNTB 9) 2, 3
Alternative Option:
- Mirabegron (β-3 agonist) offers significantly lower anticholinergic side effects and lower risk of cognitive effects, particularly important in patients over 60 years 2, 4
- Starting dose: 25 mg orally once daily, may increase to 50 mg after 4-8 weeks 4
Medications to Avoid:
- Oxybutynin should be avoided as first-line therapy due to the highest discontinuation rate from adverse effects (NNTH 16) and significant cognitive impairment risk in elderly patients 1, 2, 3
- Fesoterodine has poor tolerability with NNTH of only 7 2
Critical Considerations
Medication Selection Criteria:
When pharmacotherapy is necessary, base selection on: 1
- Tolerability and adverse effect profile (most important, as all drugs are similarly efficacious)
- Ease of use
- Cost
- Polypharmacy status (if taking ≥7 medications, avoid trospium and prefer tolterodine, darifenacin, or mirabegron) 2
Common Pitfalls to Avoid:
- Do not skip behavioral interventions and proceed directly to medications—bladder training has large magnitude of benefit with no adverse effects 1, 5
- Do not use systemic pharmacologic therapy for stress incontinence—it is ineffective 1, 3
- Recognize that adherence to pharmacologic treatments is poor, with adverse effects being the major reason for discontinuation 1
- At least half of women with urinary incontinence do not report symptoms to physicians, so active screening is essential 1
Expected Outcomes:
- Pharmacologic therapies have moderate magnitude of benefit for achieving continence but are associated with adverse effects including dry mouth, constipation, and blurred vision 1, 3
- Behavioral therapy is more cost-effective with fewer adverse effects than pharmacologic therapy 1, 3
- Many patients discontinue medication due to adverse effects despite achieving some improvement 1