I know ketotifen (sp?) is supposed to allow you to use clen for longer without downregulation of the receptors. My question is this: I only plan on taking 40-60mcg a day 5 on 2 off. I don't want to take ketotifen. Since I'm running such a low dose will my receptors still be subject to downregulation after ~2 weeks? I want to run the clen approx 4 weeks. Does this look okay or am I wasting the last 2 weeks of my clen.