I am on 2 mg of bumex and 8 mg of exalgo. I am also potassium deficient and take 60 meq a day. What could I possibly take for extreme constipation without lowering my potassium too much! If increasing water consumption is your answer, this will not work because it will be excreted out with the bumex. Any fiber bulking agent will become concrete in the intestines because the water in the intestines is being pulled out by the bumex as well. I am stumped, as well as my GP at this time. I am awaiting an appointment with a specialist just checking to see if anyone has any ideas.