Let's hope we hear from the OP again. Assuming op is not a troll.
Besides the APAP, 600-mg pseudo cannot be enjoyable either - this is going to have me looking for a human LD50 for it - usually human LD50s are based upon a collection of post-mortum toxicology results, vs. toxicology of those who've survived, in this case stupidly high doses of pseudo.
JFC... Shaking my head and about to puke at the thought of ingesting the OPs tablets. Too bad op didn't puke b/f absorption was significant...
Edit: by my count it's been just over two hours since OP's final, errrr... I mean most recent post. I hope the lack of posting means OP got to emergency care and was able to convey the type and amount of tablets he/she took.
Edit II: If anyone is going to go through with something like this they need to write down what they took, exactly when and how (oral, plugged, etc...) Then put that note in a place nobody can miss, front pocket is good... I'm sure there's other ways, indelible ink on your chest or arm might be good. People need to know a. It wasn't a suicide attempt, b. It was exactly x, y and z you took and c. take a second and say goodbye to those that care about you.
If this poster survives, I certainly don't want others to think they would as well. OP self reports being young, but close to physically mature, and could possibly survive this, but I would NEVER take that as a pass to do even half as much.
Read ahead of swallowing shit like this. This was obviously a cold/flu medication, but honestly ime, none of these substances help much, unless you like the side effects of pseudo, some people do, though i doubt at 600-mg!