Hi guys, i've started taking dexaprine about a week ago. The problem is that i'm very stimulant tolerant, and felt nothing from the first assumption. Now i'm taking 1 tab 30 min before cardio and i swallow it with a caffeinated beverage, like coffee or sugarfree redbull. The only things that i'm noticing are a slight warm feeling and a nice leaning out effect, but from a stimulant/energizing/appetite suppressant point of view, i'm feeling absolutely nothing. The same things happened last year with oxyelite, i took it after a 2 months stop from any stimulants or caffeinated beverage, and i could take 4 caps of it before going to sleep and fall asleep like a baby...Now the question is: can i take 2 tabs of dexaprine before cardio workout? Is it safe?