I know it has happened to me before, I IV everything and as not a very often user of methamphetamine when I do it I feel it quite well, usually do around .05g to .15g and I know in the past when I have taken a shot around this size I would go t do a shot of heroin a couple hours or so later and feel almost absolutely nothing.. maybe the TINIEST buzz. I am an opiate user for sure have been iv'ING for about 9 months tolerance is decent I usually do a dub or a bit more a shot of decent quality BTH. I am in California IA that's all I can really get my hands on.. but I am wondering if there's any methods or remedies I can do to avoid my amphetamine high preventing me to feel effects from my opiates. As I have done a shot of clear this morning but I am not enjoying so much and want my opiates back lol.