Hi Thanks for posting your query on HCM. This medication is prescribed for painful, frequent, or night time urination and urgency. It relaxes the muscles in urinary tract and urinary bladder. It also has local anaesthetic & analgesic action hence found to be useful in the treatment of painful spasms of the ureter due to stones, it also reduces the painful urination. It is apparent from your history that you had RBCs in your urine, it is most commonly caused by stones in the urinary tract. This medication produces the relaxation of the smooth muscles of the urinary tract and helps in expulsion of small stones through urine. Take plenty of oral fluids to help in easy passage of small stones. Hope this information answers your query. A feed back is appreciated.