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  • BDD Moderators: Keif’ Richards

Vyvanse vs street amphetamines

mazse

Greenlighter
Joined
Aug 17, 2026
Messages
3
Hi, I’ve been fascinated by drugs since I was 15, without necessarily being addicted to them, except for tobacco and my Ritalin, which I find recreational even at a normal dose, with a good euphoric feeling, but without experiencing cravings or withdrawal when I stop. That said, I find it interesting to try things as long as there isn’t any real short-term risk. I’ve never really tried anything actually dangerous, except for one line of coke once. But recently, I was prescribed Vyvanse, and originally I wanted to try amphetamines, but at a low dose and nothing too strong.


I looked into it, and apparently Vyvanse is a type of amphetamine. I like the effects, but more for staying at home, getting into the music, and doing things I normally wouldn’t have the energy to do. (And above all, I feel like it makes smoking cigarettes twice as good.) But I can’t really see myself taking it at a party because it makes me too serious, and I think being around people would make me annoying because I feel like I’m the king of the world and the main character. So it’s cool, but only when I’m by myself.


So my question is: is there actually a real difference between street amphetamines and Vyvanse? I imagine street amphetamines must be stronger, but I don’t really see how my heart could physically beat any faster than it already does.
 
Hi, I’ve been fascinated by drugs since I was 15, without necessarily being addicted to them, except for tobacco and my Ritalin, which I find recreational even at a normal dose, with a good euphoric feeling, but without experiencing cravings or withdrawal when I stop. That said, I find it interesting to try things as long as there isn’t any real short-term risk. I’ve never really tried anything actually dangerous, except for one line of coke once. But recently, I was prescribed Vyvanse, and originally I wanted to try amphetamines, but at a low dose and nothing too strong.


I looked into it, and apparently Vyvanse is a type of amphetamine. I like the effects, but more for staying at home, getting into the music, and doing things I normally wouldn’t have the energy to do. (And above all, I feel like it makes smoking cigarettes twice as good.) But I can’t really see myself taking it at a party because it makes me too serious, and I think being around people would make me annoying because I feel like I’m the king of the world and the main character. So it’s cool, but only when I’m by myself.


So my question is: is there actually a real difference between street amphetamines and Vyvanse? I imagine street amphetamines must be stronger, but I don’t really see how my heart could physically beat any faster than it already does.
Street amphetamine is usually cut to fuck, and is also usually L-Amphetamine.

Vyvanse is Lisdexamphetamine. This coverts in the liver to Dexamphetamine (D-Amphetamine). 10mg Lisdexamphetamine converts to approx 3mg D-Amphetamine.

'Street' amphetamines will not be 'stonger' or more potent than uncut Dexamphetamine. All depends on dose of course

Edit - Am now thinking you are probably USA based and are referring to methamphetamine when you mention 'speed'. In which case yeah, likely to be stronger and more potent than vyvanse. In Europe 'speed' mean amphetamine, not meth.

If you want it milder, perhaps try a lower Vyvanse dose? Or try get yourself some IR dexamphetamine and just take 5mg, see where that gets you
 
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Vyvanse is clean. Although the only way to be sure is if you collect it from the pharmacy yourself. Vyvanse is not something I have tried so can't comment on the high.

I have tried ritalan a couple of times and taking ten of those small bolts at once gives you a wicked clean high. But the high doesn't really have legs to keep you going well into the next day the way meth or street amphetamines has.

street amphetamines are at worst dirty junk. In many parts of the western world in the 1980s and 1990s scum bag drug dealers laced their product with cum.

So at best you got bad pimples when using speed or crank. At worst if you were dumb enough or unlucky or both you became infected with HIV/AIDS.

Largely came down to if you injected wet gear within a certain time period. Like if you scored your speed and left it alone and didn't inject it before a full 7 days had past.

In places that had sex worker activity a scum bag drug dealer would pay a prostitute to steal a used condom from a brothel and mix it up with a batch of street amphetamines.

In most cases scum bag drug dealers were adding seamen to their product to be smart-arses not to deliberately spread the HIV/AIDS virus.

Shit did go wrong in some cases. BUT some dealers did pride themselves on selling "clean" speed.

I mostly snorted my speed so I was one of the lucky ones.

street amphetamines have a high that can be extremely intense if booted and for some weird reason coming down off street amphetamines can be quite horrible especially if you have snorted way too much like half a gram or more.

However the 1980s and 1990s were a loooonng time ago and now speed freaks have all moved on to smoking crystal meth. In Australia anyway.

Maybe in europe people still use street amphetamines but I haven't come across it in Melbourne since 2009. But i am not exactly connected when it comes to drugs.

Speed used to be Outlaw MC Bikers bread and butter for turning a profit, now not so much. I personally think the prevalence of ice where i live is a good thing.

Sure people go crazy but that's a trade off people have to make for getting clean gear.

Having a reliable source is important however you can never be too sure. It's easy to confuse street amphetamines cut with fent. Which is deadly esp. if you have xanax or diazepam in your system.

I'd stick to legal medical grade stims if you can and only use crystal meth if you are planning to only smoke it. Remember meth is a hell of a addiction.
 
I remember enjoying street amphetamines many years ago. After I had become familiar with vyvanse I tried it once again. And it was such a disappointment. Maybe because regular use of vyvanse has increased my tolerance. But anyway, there are two obvious reasons why vyvanse is preferable. It is clean. And it is possible to be in full control of the dosage. No eyeballing of stripes. Some people claim that the levo part in street amphetamines are of some value. I honestly cannot tell. The other objection against vyvanse is its slow onset. For me the kick I get out of vyvanse is enough. But it may be possible, depending on where you are, to have dexamphetamine or adderal (with levo) prescribed too, Having a vyvanse prescription is a privilege the way I see it, and it would be silly to mess up that privilege by meddling with street drugs.
 
Hi, I’ve been fascinated by drugs since I was 15, without necessarily being addicted to them, except for tobacco and my Ritalin, which I find recreational even at a normal dose, with a good euphoric feeling, but without experiencing cravings or withdrawal when I stop. That said, I find it interesting to try things as long as there isn’t any real short-term risk. I’ve never really tried anything actually dangerous, except for one line of coke once. But recently, I was prescribed Vyvanse, and originally I wanted to try amphetamines, but at a low dose and nothing too strong.


I looked into it, and apparently Vyvanse is a type of amphetamine. I like the effects, but more for staying at home, getting into the music, and doing things I normally wouldn’t have the energy to do. (And above all, I feel like it makes smoking cigarettes twice as good.) But I can’t really see myself taking it at a party because it makes me too serious, and I think being around people would make me annoying because I feel like I’m the king of the world and the main character. So it’s cool, but only when I’m by myself.


So my question is: is there actually a real difference between street amphetamines and Vyvanse? I imagine street amphetamines must be stronger, but I don’t really see how my heart could physically beat any faster than it already does.
As someone else said, Vyvanse is converted in the body into dexamphetamine, but it is released into the body in a long slow drawn out way. Extended release rather than instant release. If you take instant release dexamphetamine you are essentially taking the same drug, but the come on is faster with IR Dex than with Vyvanse. So no hint of a real rush with Vyvanse ( at least as far as I can tell) but it lasts much longer. Regardless, for me, I don't care for dex in any form so much. It makes me more intense and jittery than I like, compared to Ritalin.
 
As someone else said, Vyvanse is converted in the body into dexamphetamine, but it is released into the body in a long slow drawn out way. Extended release rather than instant release. If you take instant release dexamphetamine you are essentially taking the same drug, but the come on is faster with IR Dex than with Vyvanse. So no hint of a real rush with Vyvanse ( at least as far as I can tell) but it lasts much longer. Regardless, for me, I don't care for dex in any form so much. It makes me more intense and jittery than I like, compared to Ritalin.
Vyvanse is a great med imo. I find it significantly less jittery than Ritalin personally, but I guess I'm talking 40mg+ doses there so...... Vyvanse is also more of a 'delayed' release rather than 'extended' although I may be splitting hairs there. I'll set an alarm for 90 minutes before I have to get up, knock back a Vuvanse, go back to sleep and wake up to another alarm feeling okkkk

In my defense I've had 20 mg Ritalin this evening :LOL: Really like Ritalin's shrot action, 20mg give me 4 hours focus and can easily sleep without sleep-aids 5 hours after consuming - result

But, if was going for a full day extra focus, Vyvanse or IR dex (redosed once) is the way forward
 
Lisdextroamphetamine and amphetamine are qualitatively very very similar which makes sense because lisdextroamphetamine is an amphetamine prodrug.

The effect profile is almost identical, but what does change is the onset and duration of action. Some people (and it's manufacturer) claim vyvanse lasts 12 hours, some say it doesn't. It definitely does last longer tho.

Another thing to note is that 10mg of vyvanse is equivalent to roughly 3mg of dextroamphetamine base while 10mg of dextroamphetamine sulfate (the most commonly supplied salt form) is equivalent to about 7.3mg of the base.
 
Lisdextroamphetamine and amphetamine are qualitatively very very similar which makes sense because lisdextroamphetamine is an amphetamine prodrug.

The effect profile is almost identical, but what does change is the onset and duration of action. Some people (and it's manufacturer) claim vyvanse lasts 12 hours, some say it doesn't. It definitely does last longer tho.

Another thing to note is that 10mg of vyvanse is equivalent to roughly 3mg of dextroamphetamine base while 10mg of dextroamphetamine sulfate (the most commonly supplied salt form) is equivalent to about 7.3mg of the base.
Good take! I think you are pretty spot on.

I'd like to add :

Street amphetamine is of unknown purity and with unknown cutting agents. Also, the presence of stereoisomers (left or right handed amphetamine) l-amphetamine or d-amphetamine would depend on which route of synthesis the chemist took. So in theory, you could have very pure "base d-amphetamine" if you had an experienced chemist, a dealer who didn't cut the product and it was synthesised via Chiral or Achiral reactions.

In possible adulterants and uncreacted products varies, depending on the reaction used. (Source: https://csclub.uwaterloo.ca/~pbarfuss/digitalocean/SyntheticAmphetamine.pdf)

Chiral reactions are generally preferable. As of 2009 there are dozens of different reactions which exist, so essentially, unless you did the synthesis yourself, you are unlikely to know what's in.

There are test centres these days to check for purity.
 
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