My head is killing me, I can barely swallow water because of how sore my throat is, I'm having trouble walking - typical fever. Sucks, eh?
But two pills of paracetamol-caffeine-codeine combo (250mg, 50mg and 10mg respectively) and I feel alive again. I can even eat without any major problems. Throatache seems like it had its volume turned down a lot
Now, since I've drank caffeine pills and paracetamols on their own and they didn't help me much, I believe that the effect is caused by codeine. No wonder it's called a "painkiller".
I wish I could get pure codeine in my country...