I have COPD also. The doctor had me taking lasix for 5 yrs. 3 tablets a day, all because 5 yrs ago i had CHF also.I cut out most of the salt and kept to my diet. Dr. would say sodium level too low and creatine levels to hig.I stopped taking 3 tablets a day when i kept getting food stuck in throat,Couldnt cough up mucous, That stuck too. Many times almost passed out. I believe my whole throat and esphsogus was dehydrated severely. Now i am just taking 1 tablet everyother day and what an improvement.I have never had any swelling anywhere in 5 yrs.I believe I was overdosed. P.S. My gp doesnt know yet Dont see them til May or June.