Flavoxate

wikipedia: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, is used to treat urinary bladder spasms.

Kidney, Kidney stone disease, Urinary bladder, Flavoxate, Antispasmodic, Lithotripsy, Acoustic shock waves