Yes, crack is a good comparison because it fades off real quick. Very short half life. I’ve found I basically has no withdrawal symptoms except I get an angry feeling sometimes a few hours after taking it. 12.5 mg x 4 pills (50 mg) is about my minimum dose and probably my average dose. Yesterday I took 325 mg – I think most of it was wasted.
It feels REAL clean. No body load for me – just a mental calming, clarity and stimulant effect. I’ve never noticed side effects except a little nausea at high doses when tolerance is low. I’m not sure about euphoria but I have noticed a real happy and talkative mood when on it.
Bottom line is, unless you have it prescribed, it’s probably not worth the money you’ll spend on it. I’m pretty sure it’s still not available in the US.