> Methamphetamine is a whole other level of stimulant.

The extra methyl group that differentiates it from regular amphetamine salts mainly serves the purpose of crossing the blood-brain barrier quicker. However, during this process it loses that extra methyl group. So whether you're taking meth or adderal, the chemical that actually reaches your brain is ultimately the same

In fact, methamphetamine is available as a prescription ADHD medicine under the brand name "Desoxyn"