While I distinctly remember reading what I thought was there, looking back at one of the bottles you are right. Still have that incredibly strong memory of the other thing, though.
It's still addictive, but I think much less so if it's taken orally. Would probably help the ADHD but also make you super euphoric, if i had to guess... Pretty bad idea overall though.
Methamphetamine is still prescribed for ADHD in extreme cases. "Street meth" is exactly the same but with more impurities (assuming it hasn't been cut with other drugs like fentanyl). It would be much worse for you because of all the harmful/carcinogenic impurities, but not any more addictive or euphoric (again, assuming it's not cut with opiates)
edit: This is assuming, like the other commenter mentioned, that you stick to taking it orally. As soon as you change the route of administration to bypass the liver on its first trip through the blood stream (meaning literally any other RoA), both the "rush" and addictive potential get much larger.
The only reason I know this is, because one time I randomly read the wikipedia article about Meth. If it wouldn't be for this, I wouldn't have known this too.
It's basically the last resort adhd medication. It's because the way we classify medication means that potential for pharmaceutical benefit (as recognized by the federal government) is a factor in whether a drug has legal uses.
This results in the fun scenario where heroin (general analgesic and other opiate traits), cocaine (topical analgesic), and meth (adhd and narcolepsy treatment) are all more legal on a federal level than cannabis, lsd, and psilocybin.
It's not, but there is an FDA-approved drug with Desoxyn.
I don't think the poster got that specifically, from my understanding that prescription is very rare compared to say Adderall which is an amphetamine but as you correctly point out not methamphetamine; but it can't be ruled out that they actually got prescription meth.