Ureteral Stent Study

Inclusion Criteria: * Patient is undergoing ureteroscopy for urolithiasis in which temporary ureteral stenting is indicated Exclusion Criteria: * Patient is unwilling or unable to sign and date the informed consent * Patient is unwilling to comply with the follow-up study schedule * Patient is pregnant, breast-feeding, or planning to become pregnant during the course of the study * Patient is currently taking anti-cholinergic or other anti-spasm medications * Patient is currently taking sildenafil, tadalafil, or vardenafil * Patient has a known sensitivity to alpha-blocker medications * Patient is currently undergoing chemotherapy or radiation therapy * Patient has an active urinary tract infection * Patient is in chronic renal failure, on hemodialysis, or on chronic peritoneal dialysis * Patient requires bilateral shock wave lithotripsy, bilateral stents, or has bilateral symptomatic kidney stones * Patient has had a ureteral stent within the past three months in either ureter * Patient is unable to accurately detect or report bladder function or pain * Patient has chronic pain