I used it for several years too, I needed only 3/4 capsules a day for the cleanse.
Then I changed to every other day and later to once a week. I have also used it just for the oxygen (for other reasons) and used 2 a day, 1 each midmorning and afternoon.
Now I am down to at the most once a month depending on what I have eaten.
It is important to improve your diet and do liverflushing to stimulate the bile.
Here is the view (read the whole thread)from Andreas Moritz , he always has liked this cleanse from way back since there was only homozon and colosan.