CCCs would just ruin duract for me cat. My cat took a whole box of duract, with a decent
dxm tolerance, and had a enjoyable experience. He took half a box once with a friend, hardly got any effect, but when he got up in the morning he had an afterglow. He recommends you take a whole box at once, maybe with grapefruit juice. My cat does believe they have as much dxm as they claim but the light consumption and very subtle body irritations may be confusing our bodies that we don't feel anything. Since most are use to an irritated stomach or nausea on dxm.
Funny, when my cat ate a box of cherry duracts he actually ENJOYED the taste of the consumption!