Generally speaking the differences are as follows.
Methamphetamine binds more directly to the neurons of the CNS as it passes through the blood brain barrier more readily as it is more lipid soluble.
This results in it's effects releasing and uptake inhibition occuring in the brain and spinal systems. It also mean that it is more potent by weight.
Amphetamine does also cross the brain barrier, but it has more of an affect on the parasympathetic nervous system. As in muscles and other tissue. Although it also works on the brain, it also works to activate movement. Amphetamine results in more physical stimulation and effects and less wakefulness and mental affects.
Methamphetamine is also metabolized more slowly, therefore it's waking affects are more prolonged.
I am not sure of the toxicological differences, however methamphetamine at high and prolonged doses does cause stress on CNS neurons. We are talking about high doses (200mg+). People have survived on huge doses of methylamphetamine.
There is plenty of information on Amphetamine / Meth(yl)-amphetamine online via Psychonaut Wiki, Wikipedia, Erowid, Bluelight and Drugs Forum.
Although I found both to be fun and euphoric, they never really have the strong pull like cocaine. Though, neither Cocaine nor Methyl-Amphetamine come even close to the addictive potential of something like Nicotine.
THIS REPLY HERE IS A COMPLETE AND TRUE FACT HERE IN THE LAND OF DOWN UNDER.....
SPEED,WHIZZ,WHIPPA,GOEY,OLD SKOOL,DEAD ANTZ,=THESE ARE ALL AUSTRALIAN SLANG FOR METH HYDROCHORIDE POWDER THAT MADE UP 95% OF THE AUSTRALIAN DRUG SCENE IN THE EARLY 80,s & 90,S..
IT WAS PRODUCED LOCALLY FROM PSEUDO-EPHEDRINE BY OZZY COOKS USING THE MOST COMMON AND POPULAR METH REACTIONS OF THAT TIME ERA SUCH AS THE RED P/IODINE REACTION
THE AMMONIA BIRCH REACTION
THE HYPOHOS REACTION.....
IT WAS ALSO MADE USING P2P BUT
DURING THIS TIME THIS WAS LESS COMMON ..
THAT STUPID EURO TRASH THEY CALL SPEED IN EUROPE IS AMPHETAMINE CUT WITH CAFFEINE AND IS NOT RELEVANT TO AUSTRALIAN DRUG CULTURE
Generally speaking the differences are as follows. Speed is usually Amphetamine (Sulphate), whereas meth is usually Meth(yl)-Amphetamine Hydrocloride, though the salt is not that relevant.
Methamphetamine binds more directly to the neurons of the CNS as it passes through the blood brain barrier more readily as it is more lipid soluble.
This results in it's effects releasing and uptake inhibition occurring in the brain and spinal systems. It also mean that it is more potent by weight.
Amphetamine does also cross the brain barrier, but it has more of an affect on the parasympathetic nervous system. As in muscles and other tissue. Although it also works on the brain, it also works to activate movement. Amphetamine results in more physical stimulation and effects and less wakefulness and mental affects.
Methamphetamine is also metabolized more slowly, therefore it's waking affects are more prolonged.
I am not sure of the toxicological differences, however methamphetamine at high and prolonged doses does cause stress on CNS neurons. We are talking about high doses (200mg+). People have survived on huge doses of methylamphetamine.
There is plenty of information on Amphetamine / Meth(yl)-amphetamine online via Psychonaut Wiki, Wikipedia, Erowid, Bluelight and Drugs Forum.
Although I found both to be fun and euphoric, they never really have the strong pull like cocaine. Though, neither Cocaine nor Methyl-Amphetamine come even close to the addictive potential of something like Nicotine.
In Australia this has NEVER actually been the case, pre DNM the chance of getting amphetamine sulphate on the street is pretty well zero. Australian speed is always cut meth.
You actually have no idea, that makes me wonder what you're doing here????
100% correct, in 20 years of using speed prior to dnm I had never seen amph sulphate it was always meth from pseudo but it wasn't always cut it just wasn't crystal but it was referred to as speed. The gear out of Melbourne early 2000s was as good or better than much of today's meth and it was $200 a gram every day and smoked beautifully. Amps sulphate if made by someone who cares is ok but if you binge on it you get too much side affects from the nasty in it.
Perhaps, I would say there is truth to your statement. Though I can say there is a distinct difference in effects between amphetamine and methyl-amphetamine. And the speed experiences I have had way back were more akin to amphetamine than methyl-amphetamine.
"Generally speaking" speed has been amphetamine, (d-amphetamine) or perhaps another mix of drugs. But in my experience, it's been amphetamine (salt is not relevant).
Whereas Meth/Ice/Crystal has referred to methyl-amphetamine.
Also, I believe methyl-amphetamine is easier to synthesize today than amphetamine. P2NP to amphetamine and P2P + Many others to meth(yl)-amphetamine.
Also, I believe since it's more potent, therefore it's more cost effective.
He doesnt know shit. Plenty of amphetamine sulphate around in the early 90's when I was introduced to it. Obviously still on his mums tit and in nappies to come out with that crap. Bet I know who the shill is
YOUR A TOSSER.....SPEED IS AND ALWAYS WILL BE METH HYDROCHORIDE IN AUSTRALIA.....TAKE YOUR EURO TRASH BACK TO WHERE IT COMES FROM YOU MONKEY...
ITS NOT PART OF OUR OZZY HERITAGE...
THIS IS AUSTRALIA !!!
From memory the main difference is it passes the blood brain barrier quicker meaning the reward circuits link the good feeling to taking the drug meaning it is a bit more addictive.
Meth converts to amphetamine in your body and passes around 50% of meth unused through your urine.
It is both the reuptake inhibitor meaning it blocks the bodies ability to eliminate the excessive dopamine coursing through your body. It also releases massive amounts of dopamine so it has 2 actions that feed on each other.
I believe Coke only has one of those. Not sure on speed if it has both.
It last a bit longer but not a massive difference.
If you have the time, this is a great video
https://www.youtube.com/watch?v=o97xuEtbkKg