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Systematic (IUPAC) name
2-(1-piperidyl)ethyl 3-methyl-4-oxo-2-phenyl-chromene-8-carboxylate
CAS number 15301-69-6
ATC code G04BD02
PubChem 3354
DrugBank APRD00972
Chemical data
Formula C24H25NO4 
Mol. mass 391.46 g/mol
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.


Legal status
Routes  ?

Flavoxate is an anticholinergic with antimuscarinic effects. Its muscle relaxant properties may be due to a direct action on the smooth muscle rather than by antagonizing muscarinic receptors.

Clinical uses

Flavoxate is used to treat urinary bladder spasms. It is available under the trade name Urispas (Paladin).

Flavoxate HCl is indicated for symptomatic relief of interstitial cystitis, dysuria, urgency, nocturia, suprapubic pain, frequency and incontinence as may occur in cystitis, prostatitis, urethritis, urethrocystitis/urethrotrigonitis. Paul, S.K.

Adverse Reactions The following adverse reactions have been observed, but there are not enough data to support an estimate of their frequency. Nausea, vomiting, dry mouth vertigo, headache, mental confusion, especially in the elderly, drowsiness, nervousness. tachycardia and palpitation. urticaria and other dermatoses, eosinophilia and hyperpyrexia, increased ocular tension, blurred vision, disturbance in eye accommodation and dysuria.

Contraindications: Flavoxate HCl is contraindicated in patients who have any of the following obstructive conditions: pyloric or duodenal obstruction, obstructive intestinal lesions or ileus, achalasia, gastrointestinal hemorrhage and obstructive uropathies of the lower urinary tract.


  • Brenner, G. M. (2000). Pharmacology. Philadelphia, PA: W.B. Saunders Company. ISBN 0-7216-7757-6
  • Canadian Pharmacists Association (2000). Compendium of Pharmaceuticals and Specialties (25th ed.). Toronto, ON: Webcom. ISBN 0-919115-76-4
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Flavoxate". A list of authors is available in Wikipedia.
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