Methods of administration include injection, oral, urethral, vaginal, nasal and mucosal administration.

The present device preferably allows the user to void through the urethra without removal of the device.

A urethral sizing catheter having a balloon spacing corresponding to the interballoon urethral segment length is inserted in the patient to determine the clinical length of the patient's urethral tract from his bladder to his penile meatus.

During transurethral resection of a tumor, the instrument is passed into the bladder through the urethra.