"i rate this a seven because it got rid of my horrible burning urethra pain after two months but i am at 500mg/day at three months and haven&#039;t experienced any affect on my bladder pain. the urethra pain was unbearable so i would&#039;ve taken it just for that. going to continue taking this for six months. no side effects when working my way up 100mg each week to 500mg/day"