In all honesty I hated the shit. Gave me terrible insomnia for about 2 days even when I only took 1 about 6am. It made me feel like I was on a constant meth rush with no let off at all then later I would tired and almost narcoleptic. I like ECA because its a proven beta-2 antagonist and it basically only keeps you hopped up for about 4-6 hours then lets you off.
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