When I had my heart attack and they weighed me in the emergency room I was 31 pounds heavier than my normal weight. That was all water that I had been retaining because my heart couldn't pump as efficiently as normal. I had no idea that I even had a heart attack but my troponin levels were still elevated so the knew that it was in the past eleven days. I was given Furosemide (also marketed under the brand name Lasix) to help with purging my body of the accumulated fluids and was given a prescription for it when I was discharged from the hospital. Recently I was hospitalized with pneumonia and was dehydrated. Instead of going in moderation with the intravenous liquids they pushed them too fast and I started to retain fluids. I was given an IV push (a fast dose) of Furosemide twice a day and it worked wonders. When I was discharged I got a prescription for 20 milligrams but since that was half the dose I was getting in the hospital intravenously it didn't work as far nor was it as effective. This is something that helps with fluid that builds up in the body but it can be something that works against you if you take it and don't need it. It can cause dehydration so you need to have your electrolyte levels checked on a regular basis. Maintaining a low sodium diet can really help with water retention and it might be able to help eliminate this from your daily medication regiment.