Differences between Adderall and Vyvanse euphoria?

Vyvanse is lisdexamfetamine, while Adderall is dextroamphetamine, aka (a-methylphenethylamine). Vyvanse is a pro-drug for dextroamphetamine, meaning it is only active after you eat it, so there is little to no abuse potential. Basically, Vyvanse is dextroamphetamine bonded with lysine (an essential amino acid). The euphoria experienced with 50mg Vyvanse orally, is comparable to 25mg Adderall orally. However Adderall is active through insufflation (snorting) so I would assume the euphoria would be better on Adderall.