I was addicted to coffee, now I take pills instead. Same thing, just without the laxative effect. I take 100 mg when I wake up and another 100 mg around lunch time. Sometimes I take another 100 mg if I go to the gym or a party after work or planning to work on a side project at home... My levels of adenosine are pretty high and without caffeine I'm just slow and sleepy, which can be even dangerous, for example while driving. I will get a nice capsule filling machine some day to make my own capsules - pure caffeine is sold on Amazon and it's dirt cheap.