Thanks for your response. I have been informed that there aren’t many specific medications for an under active bladder. The only real solution is to self catheterise. There are medications available for an over active bladder, but if one can’t urinate due to ms, then the best option is to use a catheter.
@stumbler do you have any tips on how best to relax the muscles? Are there any foods that I should eat or activities which I can do, to help the brain to send messages to the bladder to empty?