Im currently Prescribed Dexedrine Spansules 15mg. I had to go to 8 pharmacies to find them in stock, it was a hassle. The most i take to feel euphoria off of it is about 60mg, which lasts about 15 hours, and YES i crush the beads to kill the time release, i'm not exaggerating either about how long i feel high either.
As far as you taking 80mgs are you talking bout Adderall or Dexedrine? I strongly reccommend not to take 20mg's of Adderall 4x a day as that is ALOT of adderall to take, unless you have a tolerance; which will only get worse anyways, no psychiarist will RX 20mg 4x a day, in my experience and knowledge. I believe 60mg is the maximum they prescribe. But i take 60mg of Dexedrine in the morning. Make sure you eat, drink alot of water and sleep, im at the point where i have an appetite now so i make sure to keep healthy, i may not feel euphoric as i want to be, but i feel pretty good everyday, thankfully Dexedrine doesn't have the L-isomer, so therefore i do not experience any negative side effects like crash, physical tension, violent mood swings, etc...if i were to take 60mgs of Adderall in the morning, boy would i be a mess and a half...tweaked out and paranoid out the ass from adderall.
do yourself a favor, only if it's a problem, lower your dose of Adderall, and try to switch to Dexedrine/Dextrostat, the duration is longer and you won't feel tweaked out, i know Adderall is 75% Dextro-Amphetamine so i heard but the other 25% is what causes all that bullshit neagtive side effects, and u said it only lasts 6 hours, sounds like your tolerance is building up...thats weird adderall and dexedrine mostly are the same ingredient and im feeling good twice as long as 6 hours or more, and i used to be a speed freak back when i was younger. i take 60mgs every morning dexedrine, i dont increase, i dont snort, i do it consitantly and make sure i eat, drink, and sleep too..and i still everyday feel good...i wouldnt reccommend dosing 4 times a day, just try to dose all in the morning, or half your dose in the morning, and half your dose in the afternoon. sorry if im rambling on..lol