interstitial cystitis
"It took 5 years to be diagnosed with IC. I had 24/7 urge to urinate. My urologist did a cystoscopy and found Hunners Ulcers and immediately gave me a script for Elmiron. Elmiron worked really fast for me and I no longer had the constant urge to urinate after about 4 weeks. However, it does cause diarrhea and I have suffered this side effect every day for the last 3 years. The benefits of Elmiron far outweigh the side effects."