Desoxyn is methamphetamine. Adderall is amphetamine, whereas Ritalin is methylphenidate, a completely different drug entirely.

The difference between amphetamine and methamphetamine is largely in the effective dose needed by weight, because the extra methyl group lets the drug cross the blood-brain barrier more easily. It doesn't change the actual receptors it activates or the metabolic process of the drug, however.

The real difference between Adderall and "street meth" has more to do with the means of ingestion (smoked vs oral) than the actual chemical compounds themselves.

"Adderall is amphetamine, whereas Ritalin is methylphenidate, a completely different drug entirely."

No. Methyplphenidate is as different from methamphetamine as methamphetamine is from amphetamine, which is to say that yes they're chemically different, but have similar effects that are different in the margins, like MDMA and 2CB, for example.

"The real difference between Adderall and "street meth" has more to do with the means of ingestion (smoked vs oral) than the actual chemical compounds themselves."

Which is exactly what I said.

In his book "High Price", psychiatry professor Carl Hart says that the difference between street meth and Adderal, or crack and powder cocaine is mostly social class, not pharmacology. One is taken by the poorest people, the other by movie stars or given to soldiers and schoolchildren, but they're the same drugs.

He gave a Google talk in 2013: https://www.youtube.com/watch?v=PdsN_vYZ3w8

Again, "street meth" is the smokable form, which is not like Adderal. It's twisting words to even claim that the rocks you buy on the street are 'the same' as Adderal because they're chemically the same. The argument that Hart makes (which I agree with!) is much more nuanced than what you're insinuating here. The scientific evidence on how dangerous crystal meth is compared to Adderal is unanimous. I honestly don't understand how or why anyone can claim otherwise (and I'm more interested in the 'why' than in the 'how', even).

This is a "street drugs are contaminated" argument and you are correct in that "street" drugs are often contaminated or are of inferior quality. It is an argument against prohibition. I'm not sure where you got the idea that "Crystal meth is a lot more addictive", I'd be interested to learn more if that is in fact the case. Again, no argument that illicit contaminated drugs can harm people, so can contaminated food or water. It is interesting OTOH to consider oxycodone which is abused widely and is available often paired with what would only be considered a contaminant (paracetamol or acetaminophen) if it were a street drug; the contaminant being responsible for most of the acute harm attributable to prescription opiate abuse.

"This is a "street drugs are contaminated" argument"

No it's not. As a matter of fact, both MDMA and amphetamine available in the underground market in Europe the last years are more pure than they ever were.

I'm arguing against prohibition, I guess all the downvoters didn't bother to read past my first sentence. My point was that the GP was trying to say 'oh meth is just as dangerous as other stimulants and you can get it with a prescription' - uh no it's not, and no you can't.

"I'm not sure where you got the idea that "Crystal meth is a lot more addictive", I'd be interested to learn more if that is in fact the case."

It's widely documented (see e.g. http://www.cmaj.ca/content/178/13/1679.full , from which I quote "Apart from the generic risks associated with all forms of methamphetamine, the special public health concern with crystal meth is that this form can cause more overall harm to the public than other forms, because it rapidly achieves a high drug concentration with a correspondingly high potential for drug addiction and other toxicities."; see also the references to that article and everything you will find from there) that smoking methamphetamine causes a much quicker dopamine release, and fading effect, than ingesting or snorting it. This causes a user to want to repeat smoking much faster.

Thanks for the link. At least we now have a specific definition for "crystal meth" (methamphetamine hydrochloride).

>This causes a user to want to repeat smoking much faster.

I didn't see where they made that conclusion. I did see this:

>>Despite much research data from animals in the literature,17 the areas of the human brain and the key neurochemicals that are responsible for the pleasurable effects of methamphetamine and for the transition from drug-liking to drug-craving are still unknown.

>>"Research into the pharmacologic treatment of methamphetamine addiction has largely been limited to studies in animals. Surprisingly, there are very limited data from clinical trials of new therapies to prevent methamphetamine addiction relapse.24,33 Although animal studies are essential to the development of new medications, given the public health importance of this worldwide problem and the existence of potential drug targets, it is obvious that the very slow pace of clinical testing of new therapies in methamphetamine addiction needs to be accelerated. "

As another person pointed out, methamphetamine is sold in the US as Desoxyn.

Morphine is used in the US, but diacetylmorphine (aka heroin) is used in the UK and several other countries.

I'm not being disingenuous...

"meth" is not "methamphetamine". "meth" is specifically "crystal meth", a smokable form of methamphetamine which is (much) more dangerous than other 'forms' of methamphetamine and which is not available legally, on prescription or not, anywhere in the world (well OK I don't know for sure about the entire world, but certainly not in any Western country).

You've said this more than once, but you are completely wrong. 'Crystal' is Methamphetamine HCl. Desoxyn is Methamphetamine HCl. They are exactly, 100% the same chemical.

If your issue is with smoking vs. other methods of ingesting, we can talk - but that doesn't make them 'different drugs' any more than Nodoz is a different drug to Caffeine in coffee - Desoxyn being smokeable too, of course, though I'm not sure who would bother.

You dont have to compare heroin to morphine or oxycodone. As i understands it Heroin is being used clinically in some countries under the name "Diamorphine".