Hyoscyamine / methenamine / methylene blue / phenyl salicylate
"I have interstitial cystitis have taken hyophen on three separate occasions (1-4 days at a time) and it only helped once.  My bladder felt painfully full even immediately after urinating and it helped  the second time I took it for a few days before my bladder calmed down.  The other two times it did nothing.  Very similar symptoms but no relief.  I don't understand and just want some help."