30MG ketamine is enough to remove opiate tollerance of almost any level, dxm im not too sure, i would say that around 90mg is a good start, just do some testing and DO NOT TAKE LARGE AMOUNTS OF OPIATES YET until you get the dose right.
If you know the dosage where you JUST start to feel the dissociation at all, the threshhold, the tollerance removing dose is right below it, this way you dont ruin your opiate feeling with that damn numb fucked up feeling, but if you want that, go ahead, most people hate it together though, not to mention if you do a lot of the dissociative, you can risk resp depression and probably death in combo with the opiate. Just do just enough to hardly feel the dissociative and then a non tollerant dose of the narcotic.
18t3r
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~The Recreational Pharmacist
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FUCK plur
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AIM: TheTripDoctor