I've been taking it 4 toms a day for over a year ! I'm a bit of an opinion the same as yourself ! It makes my sputum kind of bubbly , I ran out a couple of monts ago and dident take any for approximately a month and I have to say I realy don't know if it makes a difference ! But I am still on it ! Not much help to you realy ,
However I was in hospital recently ! Having been put in to a drug induced coma ; my daughter was told to expect the worst and if I did recover I'd would proabably need to have care !! . I did survive and can still walk and do things for my self !
Whilst I was in hospital , the physio therapist gave me a thing called a Pari o-pep ,hygiene - belieger ,. It looks like a small pipe , it's got a ball bearing in side that moves when you blow in to it and pushes air down into your lungs ( haven't explained that very well ) and I have to say it is brilliant for moving the mucus ! I have serious copd and honestly this is the dirt thing I've had that I can honestly say helps ! See if you can ask about it