Researchers are studying two medicines to see which works better for women with overactive bladder (OAB). OAB causes sudden urges to urinate, frequent bathroom trips, and sometimes leakage. Women who join the study will be randomly placed into one of two groups: One group will take tadalafil (5 mg), a medicine taken once a day. The other group will take solifenacin (5 mg), a common treatment for OAB, also taken once a day. The study will last 12 weeks. Participants will keep a bladder diary, answer short questionnaires, and have simple urine flow and bladder tests at several visits. The main goal is to find out which medicine lowers OAB symptoms more, such as urgency and frequent urination. Researchers will also look at quality of life, bladder function, and side effects. Women aged 18 to 75 years with OAB symptoms for at least 3 months may be able to take part.
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Overactive Bladder Symptom Score percentage reduction
Timeframe: from enrollment to 12 weeks