Vyvanse, which now has a generic but can still be pricey, is a “pro-drug” that your body metabolizes and turns into dextroamphetamine.
I’ve found that dextroamphetamine worked much better for me than normal amphetamine salts. Adderall was very helpful for me and has a mix of the dextro and the normal, but 100% sec was better.
But furthermore, the vyvanse has a nice gradual onset and offset and allowed me to get a strong dose through the middle of the day without the crash of being super irritable that I’d get as adderall wore off.
Saaaame