| Drug | Class | Adult | Paediatric | Notes |
|---|---|---|---|---|
| Tamsulosin or silodosin (alpha-blocker)[1] | Selective alpha-1A adrenergic blocker | Tamsulosin 0.4 mg PO daily; silodosin 8 mg PO daily; alfuzosin XL 10 mg PO daily | — | First-line symptomatic; rapid onset; orthostatic hypotension; intraoperative floppy iris syndrome — inform ophthalmologist before cataract surgery |
| Finasteride or dutasteride (5-ARI)[1] | 5-alpha-reductase inhibitor | Finasteride 5 mg PO daily; dutasteride 0.5 mg PO daily | — | Add to alpha-blocker for prostate >40 mL; takes 6–12 months for full effect; reduces PSA by ~50% (interpret cancer screening); sexual side effects; teratogen |
| Tadalafil 5 mg (LUTS + ED)[1] | PDE5 inhibitor | 5 mg PO once daily | — | Daily-dose tadalafil approved for combined LUTS and ED; do not combine with nitrates |
| Antimuscarinic (solifenacin, tolterodine) for OAB component[1] | Muscarinic antagonist | Solifenacin 5–10 mg PO daily; tolterodine ER 4 mg PO daily | — | Add for OAB symptoms when residual urine acceptable; check PVR before adding (caution if >150 mL); dry mouth, constipation |
| Mirabegron (beta-3 agonist) for OAB component[1] | Beta-3 agonist | 25–50 mg PO daily | — | Alternative to antimuscarinic; lower dry mouth burden; BP elevation; less anticholinergic side effects |
| Desmopressin (nocturnal polyuria)[1] | Vasopressin analogue | 60 µg sublingual nightly (women); 25 µg sublingual nightly (men); titrate | — | Selected nocturnal polyuria refractory to lifestyle; check sodium 1, 7, and 30 days, then 3-monthly; risk of hyponatraemia particularly elderly; avoid in HF, hypoalbuminaemia, anti-diuretic medications |
Diagnosis and stepwise medical and surgical management of male non-neurogenic lower urinary tract symptoms attributed to BPH per EAU guidance.