Can cause depression.. do you know what depression does to us men? guess... it can cause ED and also causes premature and retrograde ejaculation... thats only the depression.. back to the drug.
Speed also causes heart rate and blood pressure to rise, making you more active and shit like that.
Buyer: Sure, I could use some ED and premature ejaculation!
Dealer: Thats a no, right?
So basically it didn't amp me up it just curbed my appetite and gave the worst come-downs I've ever experienced in my life. Plus it made my jaw move/look all funny without me even knowing it.