In my case Methamphetamine DID indeed work! I had been using oxy intranasally pretty heavily for a few years before starting heroin. Just smoked it for about a year and then went on to bang it for another 3 years. So over all I had around 7-8 years of pretty serious opiate addiction. Just a few months ago I ran into a friend who had some meth and invited me over to party, who was I to say no??

Of course me being a daily IV heroin user at the time I had just dosed up on my medicine not too long before so I wasn't in withdrawal as of yet but when they do hit me they are pretty fierce. This was also my first time injecting methamphetamine as I did not use IV when I used meth predominantly before. When I got my first shot of meth needless to say... it was fucking AMAZING!!!! So blah blah blah tweak this tweak that, it comes around to the time when I normally would be starting to withdrawal from the heroin and feeling like blowing my head off... But I didn't. I thought huh, I don't feel the slightest bit of sickness!! So I decide to run with it and see what happens. I was so tweaked out during this run and I really didn't even crave heroin or think about it. The meth continued to stave off withdrawals, mental and physical. So, 9 days later with maybe a few hours of sleep............ I crashed.
After all the meth psychosis induced madness was over... I was for the most part fine. Of course when I finally woke up my first thought was- Man a big fat shot of heroin would sure be nice right about now!!! That is to be expected though when you have been using a substance for such an extended period in your life. So obviously the mental addiction is still there. Physical symtoms on the other hand, once I came down from the meth I maybe hot and cold flashes every now and then.
I don't know if most of you have dosed the amp or meth when your sickness is just hitting you or while in the midst of it? My conclusion, for me anyways is if you dose the amp or meth while still under the influence of opiates and well.... roll with it for about a week

90% of the physical withdrawals will not be expirienced. Just gotta take a ride on the train....
But now I have been using METH hell of a lot more!!!

Ya win some and ya lose some, and some ya just trade....