cocaine isn't good. it doesn't last long enough.    i've done my research. methamphetamine is just amphetamine with a methyl group attached. they are both dopamine-norepinephrine releasing agent and reuptake inhibitors. meth also has some minor serotonin activity. meth is 2-3 times more powerful so just take 2-3 times less dose for similar effects.  even though they are very similar i don't understand why adderall/vyvanse is so socially acceptable today.
Jihadi