Hmmm.. looks okay, but the stim will usually overpower any mild sedatives - which is what that product is composed of. If you're looking to lessen the negative after effects I'd suggest
-A good multivitamin before and after the trip.
-If its a serotonergic drug (ie MDMA) then take 5-htp the next day
-If its a dopaminergic drug (ie cocaine) then take L-Tyrosine the next day
-And of course drink a lot of water
If none of the above work for some reason then just pop some Zolpidem.
Hope that helps