The euphoria from amphetamine (in reasonable doses) is also rather subtle - it's no MDMA where it's very much in your face.

But lifted mood and energy is why it's taken recreationally, the euphoria can then come what you make from that.

One neurotypical I know who took 20mg of Adderall IR ended up going into a hyperfocused ‘can’t look away from the road’ 12+ hour road trip without stopping and couldn’t sleep for 3 days afterwards.

An ADHD’er I know who did the same thing, took a nap instead, and then actually started their taxes.

These are not the same thing.

Not doubting you but… how? Adderall leaves your system in like 4 hours. The half life is crazy short and it’s extremely noticeable when it happens. I don’t understand how someone would fail to sleep for 3 days, or even hyper focus for 12 hours, when the drug is going to be completely gone from their system and not affecting them a fraction of the time into that period. Are you sure it wasn’t something else or they didn’t take more doses or other things?

Dosage response curves != Individual biochemistries and neural architecture/metabolisms. Some people it'll just hit different.

Drug responses can be weird. Plus if you’ve been told this will make you manic and hyperfocused, your body will respond accordingly even if biochemically that doesn’t make a lot of sense.

Extended release. Those fucking things would keep me up for 3 days. If I take a the same dose of instant release, it'll be worn off at the end of the day and I'll sleep like a log. They say it wears off in 4 hours, but a single dose keeps working all day for me. Depends on how you metabolize it.

I got some 10mg Dexedrine Spansule's when I usually take normal 5mg's and I didn't sleep until 4am :(

That’s what they described.