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Legacy & Low-Evidence Classes

Agents historically used in reconstructive and functional urology whose evidence base has not held up, whose mainstream use has been superseded, or that survive only in niche, specialty or international practice. Documented here for completeness, historical awareness, and for the rare refractory scenario where they remain relevant.

  • ImipramineImipramine is US-labeled for childhood enuresis, with adult-incontinence evidence and safety limits discussed in its article.[3]
  • ParasympathomimeticsBethanechol and related drugs for bladder emptying: the history and why current guidance does not support routine use.
  • PhenazopyridinePhenazopyridine provides urinary analgesia and off-label cystoscopic ureteral-flow visualization, with a UTI-specific duration limit and renal-insufficiency contraindication.[1][2]
  • PhytotherapySaw palmetto and other plant extracts for BPH symptoms, and what the trials actually show.

References​

1. Phenazopyridine hydrochloride tablets: product labeling. DailyMed, updated July 27, 2026; marketing category unapproved drug other. Label.

2. Strom EM, Chaudhry ZQ, Guo R, Maisonet AJ, Holschneider CH, Wieslander CK. "Effectiveness of Assessing Ureteral Patency Using Preoperative Phenazopyridine." Female Pelvic Med Reconstr Surg. 2019;25(4):289–293. doi:10.1097/SPV.0000000000000540

3. Proficient Rx LP. Imipramine hydrochloride tablets: US prescribing information. DailyMed, updated January 1, 2026. Label.