What's your guys experience with cross amphetamine tolerances? i.e. do you think using adderall regularly would effect methamphetamine tollerance? would using either of these regularly affect MDMA tollerance? I think there is a cross tolerance to some extent, it seems like I can handle a bit more MDMA than the people i've used it with and I suspect it comes from me having more amphetamine experience. I'm almost certain dextroamphetamine and methamphetamine share a tolerance quite a bit, but MDMA seems a bit seperate and not as affected. Although, it is only like one molecule away from speed