dont fuk around with dangerous yayo from mexico. just grab some of these babies at walmart. you can drink the cheap vodka or natty ice and pop these every few hours (with multivitamin) and you wont feel like total dogsh1t the next day. powers you thru the tiredness makes you alert and drunk 
just take pill every 2-3 hours its like free red bull

just take pill every 2-3 hours its like free red bull