I've been on relatively high doses of pain meds, so keep that in mind. A good while ago when I would be nearing refill day and say a week out I'd realize that fact. I would start reducing my dose (usually I dosed every 6 hours) to where near the end, instead of 20mg a dose, I would be taking something like 2 or 3mg. It used to look like almost nothing. Come refill day, I'd do my 20mg after 2-5 days of the reduced dosage. Needless to say, I would puke numerous times until my body adjusted. My point being that one can reset their tolerance pretty quickly with a little willpower. Again, not to beat the point to death but keep in mind I am someone who takes a good amount of medication and have been for many decades. Good luck OP, yes it can be done!