haha, Yeah, 50mg of ephedrine is asking for a heart attack. I take 25mg ephedrine, 300mg caffeine, plus half a big ripped force and I'm buzzing.
Actually, I'm looking at the labels of the two products I take and damn..I need to settle down...ahhaha
425mg Caffeine
25 Ephedrine
Plus a bunch of other things. I'd go with Blade Hardcore by www.extremelabs.net. The product is awesome.
Until just recently, I would have a Bronkaid tablet (25mg of ephedrine), a caffeine pill from Walgreen's (200mg caffeine), and then wash that down with a low-carb Monster or Rockstar.
The first week of doing this, I was like a tweaker on Meth, and at one point even my hands would go numb. But oddly, I loved this feeling!!!
Then, after doing this for about a week and a half, those very same signs I described disappeared and never returned. Even if I took a half a tablet of Bronkaid and caffeine every 2 hours after the initial dose above.
Moral: your body acclimates to the dose and you no longer feel the same, but you don't necessarily need more. But if you took 50mg of ephedrine in one dose, it wouldn't kill you. Tweak you? Yes, but not kill you unless it was a habitual thing.