Antimuscarinic / smooth muscle relaxant
Flavoxate hydrochloride
Brand names: Urispas
Adult dose
Dose: 200mg TDS
Route: PO
Frequency: TDS
Clinical pearls
- Symptomatic relief of dysuria, urgency, frequency, urge incontinence
- Older agent — newer antimuscarinics or mirabegron usually preferred
Contraindications
- GI obstruction
- Urinary retention
- Glaucoma
- Myasthenia gravis
Side effects
- Dry mouth
- Blurred vision
- Constipation
- Tachycardia
- Drowsiness
Interactions
- Other antimuscarinics — additive load
Reference: BNF; NICE NG123; https://bnf.nice.org.uk/drugs/flavoxate-hydrochloride/. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.