I am taking 40mg of "furosemide" (generic for Lasix) twice a day. I too started showing severe signs of CHF months ago after my 3rd OHS for re-replaement of the aortic mechanical valve. After my surgery last Mar/2006, and after I went back to work, I started slacking off on my salt intake, & I was on 40mg of Lasix once a day. Being that I worked & had to compensate a lot of times by not taking the Lasix for fear I'd have to run out in the middle of a meeting or while I was running errands, I would not take it! And too, fast food restaurants were a lot more convenient to pick up all the wrong things to eat!
Well, I started bloating up like a balloon! My abdomen, upper torso & ankles started to swell! I am a small, 5'3" female & I weighed at one time as much as 150 lbs! I couldn't lay down flat to sleep, coughed all the time, raspy sound from my lungs, etc. My doctor here sent me to Houston where I had my other OHS done because he said that the "mitral" mechanical valve was beginning to fail & I had to have it replaced. The ECHO's also showed severe pulmonary hypertension due to the fluid retention! When I got to Houston, they were going to prepare me for my 4th OHS but I pleaded that they change my medications around some & explained some of my past behavior to them. That's when they increased my Lasix to 40mg, twice daily. I also take coumadin, Altace, Baby Aspirin & Potassium. I spent 2 weeks in Houston, did not have the surgery & came home. The medications are doing their job for now & I'm making sure that I follow a low-sodium diet & take the meds like I'm suppose to! Salt is a heart patient's worst enemy!
P.S. One thing that kind of bothers me though, is that one of the doctors told me that I couldn't remain on Lasix forever because it tends to "dry you up", but after talking to so many other people, they've been on Lasix for years with no bad effects. So for now, if it's working, don't knock it & enjoy each & every day God gives you! Take care & lots of luck!